Suresh R-Docker – Lab – Assignment – Excercise

Step 1 – Register a site to POST Assigment and Share with Trainer and For Self Notes – Completed ( User : SureshRamisetti)

Step 2 – Pre Test using LMS ( Completed)

Here is the Results which I have shared to Shiva : shiva@palmeto.co.in

https://www.devopsschool.com/lms/mod/quiz/review.php?attempt=3056&cmid=250

Step 3 – Install Docker Engine in Centos#1 Vm.

[root@localhost ~]# history
1 ifconfig
2 history
3 sudo yum install -y yum-utils device-mapper-persistent-data lvm2
4 sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
5 sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
6 sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
7 sudo yum install -y docker-ce
8 sudo yum install docker-ce
9 docker -v
10 sudo systemctl enable docker
11 sudo systemctl start docker
12 docker info
13 dcoker info
14 docker info
15 sudo docker run hello-world
16 docker ps -a
17 history

[root@localhost ~]# sudo docker run hello-world

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED             STATUS                      PORTS     NAMES
e3cb8e2fbf42   hello-world   "/hello"             13 seconds ago      Exited (0) 11 seconds ago             crazy_wu
75cafc0d6fee   ubuntu        "bash"               About an hour ago   Exited (0) 7 minutes ago              dreamy_northcutt
a3c9542f3076   ubuntu        "bash"               About an hour ago   Exited (0) 7 minutes ago              intelligent_goodall
0584214f703b   ubuntu        "bash"               15 hours ago        Exited (0) 7 minutes ago              compassionate_varahamihira
d83c0d7cfc94   httpd         "httpd-foreground"   15 hours ago        Exited (0) 7 minutes ago              determined_goodall
d8cca0a8d62c   ubuntu        "bash"               15 hours ago        Exited (0) 15 hours ago               charming_liskov
  26  docker update 75cafc0d6fee d83c0d7cfc94
   27  yum install git -y
   28  git --version
   29  yum install gi
   30  docker info
   31  docker -v
   32  which dcoker
   33  which docker
   34  which dockerd
   35  ps -eaf | grep dockerd
   36  which containerd
   37  docker -eaf | grep containerd
   38  ps -eaf | grep containerd
   39  history
   40  docker ps -a
   41  docker pull ubuntu
   42  docker ps -a
   43  docker rm a3c9542f3076
   44  docker ps -a
   45  docker rm d8cca0a8d62c
   46  docker rm d0584214f703b
   47  docker ps -a
   48  docker start 0584214f703b
   49  docker ps -a
   50  docker rm 0584214f703b
   51* docker
   52  docker rm 0584214f703b
   53  docker ps -a
   54  docker restart e3cb8e2fbf42
   55  docker ps -a
   56  docker stop e3cb8e2fbf42
   57  docker rm e3cb8e2fbf42
   58  docker ps -a
   59  docker start d4a3a68b47a9
   60  docker ps -a
   61  history
   62  docker pause d4a3a68b47a9
   63  docker start d4a3a68b47a9
   64  history
docker exec -it <container name> /bin/bash

Step 4 – Assignment#1

  • Create a Ubuntu container
  • Install Update, git & apache2
  • run a git command in container from outside
[root@localhost ~]# history
    1  ifconfig
    2  sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    3  docker ps -a
    4  sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    5  sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    6  sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
    7  sudo yum install -y docker-ce
    8  docker ps -a
    9  docker start 75cafc0d6fee
   10  docker ps -a
   11  docker kill 82da9c001d75
   12  docker start 82da9c001d75
   13  docker kill 82da9c001d75
   14  docker rm 82da9c001d75
   15  docker ps -a
   16  docker start 79e0ca51ae30
   17  docker rm 79e0ca51ae30
   18  docker ps -a
   19  docker pull https
   20  docker pull httpd
   21  docker ps -a
   22  docker run -d httpd
   23  docker ps -a
   24  docker exec -it 75cafc0d6fee /bin/bash
   25  docker ps -a
   26  docker run -d -p 80:80 httpd
   27  docker ps -a
   28  docker attach 75cafc0d6fee
   29  ls
   30  history

Step 5 – Assignment#2

  • Create a httpd container exposed at 8080 port
  • Access(curl) container from node
22  docker run -d httpd
   23  docker ps -a
   24  docker exec -it 75cafc0d6fee /bin/bash
   25  docker ps -a
   26  docker run -d -p 80:80 httpd
   27  docker ps -a
   28  docker attach 75cafc0d6fee
   29  ls
   30  history
   31  docker ps -a
   32   docker run -d -p 80:80 httpd
   33  docker run -d -p 81:80 httpddocker run -d -p 81:80 httpd
   34  docker run -d -p 82:80 httpd
   35  docker run -d -p 81:80
   36  docker run -d -p 81:80 https
   37  docker run -d -p 81:80 httpd
   38  docker ps -a
   39  history
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED             STATUS                      PORTS                               NAMES
7bf8088b0a5f   httpd         "httpd-foreground"   4 minutes ago       Up 4 minutes                0.0.0.0:81->80/tcp, :::81->80/tcp   suspicious_poitras
317020ee19e1   httpd         "httpd-foreground"   5 minutes ago       Up 5 minutes                0.0.0.0:82->80/tcp, :::82->80/tcp   youthful_babbage
106e7c9b43b8   httpd         "httpd-foreground"   6 minutes ago       Created                                                         suspicious_allen
99a9b3f7f56c   httpd         "httpd-foreground"   13 minutes ago      Up 13 minutes               0.0.0.0:80->80/tcp, :::80->80/tcp   sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   16 minutes ago      Up 16 minutes               80/tcp                              distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             About an hour ago   Exited (0) 37 minutes ago                                       hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               3 hours ago         Up 18 minutes                                                   dreamy_northcutt
[root@localhost ~]#
 Operating System: CentOS Linux 7 (Core)
 OSType: linux
 Architecture: x86_64
 CPUs: 1
 Total Memory: 3.701GiB
 Name: localhost.localdomain
 ID: 47IO:O3AU:KNR2:N2VU:INJB:2TFP:XEWV:4TF3:LX7F:IW5N:IA4P:6XME
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

[root@localhost ~]# docker -v
Docker version 20.10.7, build f0df350
[root@localhost ~]# which dcoker
/usr/bin/which: no dcoker in (/sbin:/bin:/usr/sbin:/usr/bin)
[root@localhost ~]# which docker
/bin/docker
[root@localhost ~]# which dockerd
/bin/dockerd
[root@localhost ~]# ps -eaf | grep dockerd
root       309 31453  0 01:13 pts/0    00:00:00 grep --color=auto dockerd
root     31757     1  0 00:46 ?        00:00:00 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
[root@localhost ~]# which containerd
/bin/containerd
[root@localhost ~]# docker -eaf | grep containerd
unknown shorthand flag: 'e' in -eaf
See 'docker --help'.

Usage:  docker [OPTIONS] COMMAND

A self-sufficient runtime for containers

Options:
      --config string      Location of client config files (default "/root/.docker")
  -c, --context string     Name of the context to use to connect to the daemon (overrides DOCKER_HOST env var and default context set with "docker context use")
  -D, --debug              Enable debug mode
  -H, --host list          Daemon socket(s) to connect to
  -l, --log-level string   Set the logging level ("debug"|"info"|"warn"|"error"|"fatal") (default "info")
      --tls                Use TLS; implied by --tlsverify
      --tlscacert string   Trust certs signed only by this CA (default "/root/.docker/ca.pem")
      --tlscert string     Path to TLS certificate file (default "/root/.docker/cert.pem")
      --tlskey string      Path to TLS key file (default "/root/.docker/key.pem")
      --tlsverify          Use TLS and verify the remote
  -v, --version            Print version information and quit

Management Commands:
  app*        Docker App (Docker Inc., v0.9.1-beta3)
  builder     Manage builds
  buildx*     Build with BuildKit (Docker Inc., v0.5.1-docker)
  config      Manage Docker configs
  container   Manage containers
  context     Manage contexts
  image       Manage images
  manifest    Manage Docker image manifests and manifest lists
  network     Manage networks
  node        Manage Swarm nodes
  plugin      Manage plugins
  scan*       Docker Scan (Docker Inc., v0.8.0)
  secret      Manage Docker secrets
  service     Manage services
  stack       Manage Docker stacks
  swarm       Manage Swarm
  system      Manage Docker
  trust       Manage trust on Docker images
  volume      Manage volumes

Commands:
  attach      Attach local standard input, output, and error streams to a running container
  build       Build an image from a Dockerfile
  commit      Create a new image from a container's changes
  cp          Copy files/folders between a container and the local filesystem
  create      Create a new container
  diff        Inspect changes to files or directories on a container's filesystem
  events      Get real time events from the server
  exec        Run a command in a running container
  export      Export a container's filesystem as a tar archive
  history     Show the history of an image
  images      List images
  import      Import the contents from a tarball to create a filesystem image
  info        Display system-wide information
  inspect     Return low-level information on Docker objects
  kill        Kill one or more running containers
  load        Load an image from a tar archive or STDIN
  login       Log in to a Docker registry
  logout      Log out from a Docker registry
  logs        Fetch the logs of a container
  pause       Pause all processes within one or more containers
  port        List port mappings or a specific mapping for the container
  ps          List containers
  pull        Pull an image or a repository from a registry
  push        Push an image or a repository to a registry
  rename      Rename a container
  restart     Restart one or more containers
  rm          Remove one or more containers
  rmi         Remove one or more images
  run         Run a command in a new container
  save        Save one or more images to a tar archive (streamed to STDOUT by default)
  search      Search the Docker Hub for images
  start       Start one or more stopped containers
  stats       Display a live stream of container(s) resource usage statistics
  stop        Stop one or more running containers
  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
  top         Display the running processes of a container
  unpause     Unpause all processes within one or more containers
  update      Update configuration of one or more containers
  version     Show the Docker version information
  wait        Block until one or more containers stop, then print their exit codes

Run 'docker COMMAND --help' for more information on a command.

To get more help with docker, check out our guides at https://docs.docker.com/go/guides/

[root@localhost ~]# ps -eaf | grep containerd
root       362 31453  0 01:16 pts/0    00:00:00 grep --color=auto containerd
root     31749     1  0 00:46 ?        00:00:01 /usr/bin/containerd
root     31757     1  0 00:46 ?        00:00:00 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
root     32277     1  0 00:57 ?        00:00:00 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 75cafc0d6feed6e3bb58e5440848615c1d632b0608787f773cfdf7324289f9f0 -address /run/containerd/containerd.sock
root     32344     1  0 00:57 ?        00:00:00 /usr/bin/containerd-shim-runc-v2 -namespace moby -id d83c0d7cfc94716a492d2d626448dde013f1638dab0edf12d5290749467f9ae0 -address /run/containerd/containerd.sock
[root@localhost ~]# history
    1  ifconfig
    2  history
    3  sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    4  sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    5  sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    6  sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
    7  sudo yum install -y docker-ce
    8  sudo yum install docker-ce
    9  docker -v
   10  sudo systemctl enable docker
   11  sudo systemctl start docker
   12  docker info
   13*
   14  docker info
   15  sudo docker run hello-world
   16  docker ps -a
   17  history
   18  sudo docker run hello-world
   19  docker ps
   20  docker ps -a
   21  docker start 75cafc0d6fee
   22  docker start d83c0d7cfc94
   23  docker ps -a
   24  docker --help
   25  docker update 75cafc0d6fee
   26  docker update 75cafc0d6fee d83c0d7cfc94
   27  yum install git -y
   28  git --version
   29  yum install gi
   30  docker info
   31  docker -v
   32  which dcoker
   33  which docker
   34  which dockerd
   35  ps -eaf | grep dockerd
   36  which containerd
   37  docker -eaf | grep containerd
   38  ps -eaf | grep containerd
   39  history
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             29 minutes ago   Exited (0) 28 minutes ago             hungry_satoshi
e3cb8e2fbf42   hello-world   "/hello"             31 minutes ago   Exited (0) 31 minutes ago             crazy_wu
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 22 minutes                         dreamy_northcutt
a3c9542f3076   ubuntu        "bash"               2 hours ago      Exited (0) 38 minutes ago             intelligent_goodall
0584214f703b   ubuntu        "bash"               16 hours ago     Exited (0) 38 minutes ago             compassionate_varahamihira
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 22 minutes               80/tcp    determined_goodall
d8cca0a8d62c   ubuntu        "bash"               16 hours ago     Exited (0) 16 hours ago               charming_liskov
[root@localhost ~]# docker pull ubuntu
Using default tag: latest
latest: Pulling from library/ubuntu
Digest: sha256:b3e2e47d016c08b3396b5ebe06ab0b711c34e7f37b98c9d37abe794b71cea0a2
Status: Image is up to date for ubuntu:latest
docker.io/library/ubuntu:latest
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             29 minutes ago   Exited (0) 29 minutes ago             hungry_satoshi
e3cb8e2fbf42   hello-world   "/hello"             31 minutes ago   Exited (0) 31 minutes ago             crazy_wu
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 23 minutes                         dreamy_northcutt
a3c9542f3076   ubuntu        "bash"               2 hours ago      Exited (0) 39 minutes ago             intelligent_goodall
0584214f703b   ubuntu        "bash"               16 hours ago     Exited (0) 39 minutes ago             compassionate_varahamihira
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 22 minutes               80/tcp    determined_goodall
d8cca0a8d62c   ubuntu        "bash"               16 hours ago     Exited (0) 16 hours ago               charming_liskov
[root@localhost ~]# docker rm a3c9542f3076
a3c9542f3076
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             30 minutes ago   Exited (0) 30 minutes ago             hungry_satoshi
e3cb8e2fbf42   hello-world   "/hello"             32 minutes ago   Exited (0) 32 minutes ago             crazy_wu
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 23 minutes                         dreamy_northcutt
0584214f703b   ubuntu        "bash"               16 hours ago     Exited (0) 39 minutes ago             compassionate_varahamihira
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 23 minutes               80/tcp    determined_goodall
d8cca0a8d62c   ubuntu        "bash"               16 hours ago     Exited (0) 16 hours ago               charming_liskov
[root@localhost ~]# docker rm d8cca0a8d62c
d8cca0a8d62c
[root@localhost ~]# docker rm d0584214f703b
Error: No such container: d0584214f703b
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             30 minutes ago   Exited (0) 30 minutes ago             hungry_satoshi
e3cb8e2fbf42   hello-world   "/hello"             32 minutes ago   Exited (0) 32 minutes ago             crazy_wu
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 24 minutes                         dreamy_northcutt
0584214f703b   ubuntu        "bash"               16 hours ago     Exited (0) 40 minutes ago             compassionate_varahamihira
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 24 minutes               80/tcp    determined_goodall
[root@localhost ~]# docker start 0584214f703b
0584214f703b
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             30 minutes ago   Exited (0) 30 minutes ago             hungry_satoshi
e3cb8e2fbf42   hello-world   "/hello"             33 minutes ago   Exited (0) 33 minutes ago             crazy_wu
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 24 minutes                         dreamy_northcutt
0584214f703b   ubuntu        "bash"               16 hours ago     Up 3 seconds                          compassionate_varahamihira
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 24 minutes               80/tcp    determined_goodall
[root@localhost ~]# docker rm 0584214f703b
Error response from daemon: You cannot remove a running container 0584214f703b7915a6af8702068d341faba36d6356d535c33c64c010b07795e5. Stop the container before attempting removal or force remove
[root@localhost ~]# docker stop  0584214f703b
0584214f703b
[root@localhost ~]# docker rm 0584214f703b
\0584214f703b
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             31 minutes ago   Exited (0) 31 minutes ago             hungry_satoshi
e3cb8e2fbf42   hello-world   "/hello"             33 minutes ago   Exited (0) 33 minutes ago             crazy_wu
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 25 minutes                         dreamy_northcutt
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 24 minutes               80/tcp    determined_goodall
[root@localhost ~]# docker restart e3cb8e2fbf42
e3cb8e2fbf42
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             31 minutes ago   Exited (0) 31 minutes ago             hungry_satoshi
e3cb8e2fbf42   hello-world   "/hello"             34 minutes ago   Exited (0) 2 seconds ago              crazy_wu
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 25 minutes                         dreamy_northcutt
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 25 minutes               80/tcp    determined_goodall
[root@localhost ~]# docker stop e3cb8e2fbf42
e3cb8e2fbf42
[root@localhost ~]# docker rm e3cb8e2fbf42
e3cb8e2fbf42
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             32 minutes ago   Exited (0) 32 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 25 minutes                         dreamy_northcutt
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 25 minutes               80/tcp    determined_goodall
[root@localhost ~]# docker start d4a3a68b47a9
d4a3a68b47a9
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                    PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             32 minutes ago   Exited (0) 1 second ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 25 minutes                       dreamy_northcutt
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 25 minutes             80/tcp    determined_goodall
[root@localhost ~]# history
    1  ifconfig
    2  history
    3  sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    4  sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    5  sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    6  sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
    7  sudo yum install -y docker-ce
    8  sudo yum install docker-ce
    9  docker -v
   10  sudo systemctl enable docker
   11  sudo systemctl start docker
   12  docker info
   13*
   14  docker info
   15  sudo docker run hello-world
   16  docker ps -a
   17  history
   18  sudo docker run hello-world
   19  docker ps
   20  docker ps -a
   21  docker start 75cafc0d6fee
   22  docker start d83c0d7cfc94
   23  docker ps -a
   24  docker --help
   25  docker update 75cafc0d6fee
   26  docker update 75cafc0d6fee d83c0d7cfc94
   27  yum install git -y
   28  git --version
   29  yum install gi
   30  docker info
   31  docker -v
   32  which dcoker
   33  which docker
   34  which dockerd
   35  ps -eaf | grep dockerd
   36  which containerd
   37  docker -eaf | grep containerd
   38  ps -eaf | grep containerd
   39  history
   40  docker ps -a
   41  docker pull ubuntu
   42  docker ps -a
   43  docker rm a3c9542f3076
   44  docker ps -a
   45  docker rm d8cca0a8d62c
   46  docker rm d0584214f703b
   47  docker ps -a
   48  docker start 0584214f703b
   49  docker ps -a
   50  docker rm 0584214f703b
   51* docker
   52  docker rm 0584214f703b
   53  docker ps -a
   54  docker restart e3cb8e2fbf42
   55  docker ps -a
   56  docker stop e3cb8e2fbf42
   57  docker rm e3cb8e2fbf42
   58  docker ps -a
   59  docker start d4a3a68b47a9
   60  docker ps -a
   61  history
[root@localhost ~]# docker pause d4a3a68b47a9
Error response from daemon: Container d4a3a68b47a90d5adfd9e8763289ae03744596a642b932087c9457bc5044d5d4 is not running
[root@localhost ~]# docker start d4a3a68b47a9
d4a3a68b47a9
[root@localhost ~]# history
    1  ifconfig
    2  history
    3  sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    4  sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    5  sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    6  sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
    7  sudo yum install -y docker-ce
    8  sudo yum install docker-ce
    9  docker -v
   10  sudo systemctl enable docker
   11  sudo systemctl start docker
   12  docker info
   13*
   14  docker info
   15  sudo docker run hello-world
   16  docker ps -a
   17  history
   18  sudo docker run hello-world
   19  docker ps
   20  docker ps -a
   21  docker start 75cafc0d6fee
   22  docker start d83c0d7cfc94
   23  docker ps -a
   24  docker --help
   25  docker update 75cafc0d6fee
   26  docker update 75cafc0d6fee d83c0d7cfc94
   27  yum install git -y
   28  git --version
   29  yum install gi
   30  docker info
   31  docker -v
   32  which dcoker
   33  which docker
   34  which dockerd
   35  ps -eaf | grep dockerd
   36  which containerd
   37  docker -eaf | grep containerd
   38  ps -eaf | grep containerd
   39  history
   40  docker ps -a
   41  docker pull ubuntu
   42  docker ps -a
   43  docker rm a3c9542f3076
   44  docker ps -a
   45  docker rm d8cca0a8d62c
   46  docker rm d0584214f703b
   47  docker ps -a
   48  docker start 0584214f703b
   49  docker ps -a
   50  docker rm 0584214f703b
   51* docker
   52  docker rm 0584214f703b
   53  docker ps -a
   54  docker restart e3cb8e2fbf42
   55  docker ps -a
   56  docker stop e3cb8e2fbf42
   57  docker rm e3cb8e2fbf42
   58  docker ps -a
   59  docker start d4a3a68b47a9
   60  docker ps -a
   61  history
   62  docker pause d4a3a68b47a9
   63  docker start d4a3a68b47a9
   64  history
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                     PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             33 minutes ago   Exited (0) 7 seconds ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 26 minutes                        dreamy_northcutt
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 26 minutes              80/tcp    determined_goodall
[root@localhost ~]# docker pull https
Using default tag: latest
Error response from daemon: pull access denied for https, repository does not exist or may require 'docker login': denied: requested access to the resource is denied
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                     PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             34 minutes ago   Exited (0) 2 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 28 minutes                        dreamy_northcutt
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 28 minutes              80/tcp    determined_goodall
[root@localhost ~]# docker exec -it 75cafc0d6fee  /bin/bash
root@75cafc0d6fee:/# docker pull ubuntu
bash: docker: command not found
root@75cafc0d6fee:/# read escape sequence
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                     PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             37 minutes ago   Exited (0) 4 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 30 minutes                        dreamy_northcutt
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Up 30 minutes              80/tcp    determined_goodall
[root@localhost ~]# docker kill d83c0d7cfc94
d83c0d7cfc94
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                       PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"             37 minutes ago   Exited (0) 4 minutes ago               hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 31 minutes                          dreamy_northcutt
d83c0d7cfc94   httpd         "httpd-foreground"   16 hours ago     Exited (137) 2 seconds ago             determined_goodall
[root@localhost ~]# docker rm d83c0d7cfc94
d83c0d7cfc94
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                     PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"   37 minutes ago   Exited (0) 4 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 31 minutes                        dreamy_northcutt
[root@localhost ~]# docker kill d4a3a68b47a9
Error response from daemon: Cannot kill container: d4a3a68b47a9: Container d4a3a68b47a90d5adfd9e8763289ae03744596a642b932087c9457bc5044d5d4 is not running
[root@localhost ~]# docker start d4a3a68b47a9
d4a3a68b47a9
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                     PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"   38 minutes ago   Exited (0) 2 seconds ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 31 minutes                        dreamy_northcutt
[root@localhost ~]# docker pull https
Using default tag: latest
Error response from daemon: pull access denied for https, repository does not exist or may require 'docker login': denied: requested access to the resource is denied
[root@localhost ~]# docker pull httpd
Using default tag: latest
latest: Pulling from library/httpd
Digest: sha256:1fd07d599a519b594b756d2e4e43a72edf7e30542ce646f5eb3328cf3b12341a
Status: Image is up to date for httpd:latest
docker.io/library/httpd:latest
[root@localhost ~]# history
    1  ifconfig
    2  history
    3  sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    4  sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    5  sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    6  sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
    7  sudo yum install -y docker-ce
    8  sudo yum install docker-ce
    9  docker -v
   10  sudo systemctl enable docker
   11  sudo systemctl start docker
   12  docker info
   13*
   14  docker info
   15  sudo docker run hello-world
   16  docker ps -a
   17  history
   18  sudo docker run hello-world
   19  docker ps
   20  docker ps -a
   21  docker start 75cafc0d6fee
   22  docker start d83c0d7cfc94
   23  docker ps -a
   24  docker --help
   25  docker update 75cafc0d6fee
   26  docker update 75cafc0d6fee d83c0d7cfc94
   27  yum install git -y
   28  git --version
   29  yum install gi
   30  docker info
   31  docker -v
   32  which dcoker
   33  which docker
   34  which dockerd
   35  ps -eaf | grep dockerd
   36  which containerd
   37  docker -eaf | grep containerd
   38  ps -eaf | grep containerd
   39  history
   40  docker ps -a
   41  docker pull ubuntu
   42  docker ps -a
   43  docker rm a3c9542f3076
   44  docker ps -a
   45  docker rm d8cca0a8d62c
   46  docker rm d0584214f703b
   47  docker ps -a
   48  docker start 0584214f703b
   49  docker ps -a
   50  docker rm 0584214f703b
   51* docker
   52  docker rm 0584214f703b
   53  docker ps -a
   54  docker restart e3cb8e2fbf42
   55  docker ps -a
   56  docker stop e3cb8e2fbf42
   57  docker rm e3cb8e2fbf42
   58  docker ps -a
   59  docker start d4a3a68b47a9
   60  docker ps -a
   61  history
   62  docker pause d4a3a68b47a9
   63  docker start d4a3a68b47a9
   64  history
   65  docker ps -a
   66  docker pull https
   67  docker ps -a
   68  docker exec -it 75cafc0d6fee  /bin/bash
   69  docker ps -a
   70  docker kill d83c0d7cfc94
   71  docker ps -a
   72  docker rm d83c0d7cfc94
   73  docker ps -a
   74  docker kill d4a3a68b47a9
   75  docker start d4a3a68b47a9
   76  docker ps -a
   77  docker pull https
   78  docker pull httpd
   79  history
[root@localhost ~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED        SIZE
ubuntu        latest    c29284518f49   7 days ago     72.8MB
httpd         latest    bd29370f84ea   12 days ago    138MB
hello-world   latest    d1165f221234   4 months ago   13.3kB
[root@localhost ~]# docker run -d ubuntu
8b4b7eae0d663d0b9b88ef53a76c56e563b45968e7ef10961ed037f4a3b939f9
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                     PORTS     NAMES
8b4b7eae0d66   ubuntu        "bash"     7 seconds ago    Exited (0) 6 seconds ago             brave_shirley
d4a3a68b47a9   hello-world   "/hello"   43 minutes ago   Exited (0) 5 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 37 minutes                        dreamy_northcutt
[root@localhost ~]# docker start 8b4b7eae0d66
8b4b7eae0d66
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED              STATUS                     PORTS     NAMES
8b4b7eae0d66   ubuntu        "bash"     About a minute ago   Exited (0) 1 second ago              brave_shirley
d4a3a68b47a9   hello-world   "/hello"   44 minutes ago       Exited (0) 6 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago          Up 38 minutes                        dreamy_northcutt
[root@localhost ~]# docker rm 8b4b7eae0d66
8b4b7eae0d66
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                     PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"   45 minutes ago   Exited (0) 7 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 38 minutes                        dreamy_northcutt
[root@localhost ~]# docker run -d ubuntu
79e0ca51ae3062ee53f9cdcdcaecd8a5b72efec47472f22954e23a252a69ef5e
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                     PORTS     NAMES
79e0ca51ae30   ubuntu        "bash"     4 seconds ago    Exited (0) 3 seconds ago             elated_fermat
d4a3a68b47a9   hello-world   "/hello"   45 minutes ago   Exited (0) 7 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 39 minutes                        dreamy_northcutt
[root@localhost ~]# docker kill 79e0ca51ae30
Error response from daemon: Cannot kill container: 79e0ca51ae30: Container 79e0ca51ae3062ee53f9cdcdcaecd8a5b72efec47472f22954e23a252a69ef5e is not running
[root@localhost ~]# docker start 79e0ca51ae30
79e0ca51ae30
[root@localhost ~]# docker kill 79e0ca51ae30
Error response from daemon: Cannot kill container: 79e0ca51ae30: Container 79e0ca51ae3062ee53f9cdcdcaecd8a5b72efec47472f22954e23a252a69ef5e is not running
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                      PORTS     NAMES
79e0ca51ae30   ubuntu        "bash"     51 seconds ago   Exited (0) 15 seconds ago             elated_fermat
d4a3a68b47a9   hello-world   "/hello"   46 minutes ago   Exited (0) 8 minutes ago              hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 39 minutes                         dreamy_northcutt
[root@localhost ~]# docker kill 79e0ca51ae30
Error response from daemon: Cannot kill container: 79e0ca51ae30: Container 79e0ca51ae3062ee53f9cdcdcaecd8a5b72efec47472f22954e23a252a69ef5e is not running
[root@localhost ~]# docker start 79e0ca51ae30
79e0ca51ae30
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED              STATUS                     PORTS     NAMES
79e0ca51ae30   ubuntu        "bash"     About a minute ago   Exited (0) 4 seconds ago             elated_fermat
d4a3a68b47a9   hello-world   "/hello"   46 minutes ago       Exited (0) 8 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago          Up 40 minutes                        dreamy_northcutt
[root@localhost ~]# history
    1  ifconfig
    2  history
    3  sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    4  sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    5  sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    6  sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
    7  sudo yum install -y docker-ce
    8  sudo yum install docker-ce
    9  docker -v
   10  sudo systemctl enable docker
   11  sudo systemctl start docker
   12  docker info
   13*
   14  docker info
   15  sudo docker run hello-world
   16  docker ps -a
   17  history
   18  sudo docker run hello-world
   19  docker ps
   20  docker ps -a
   21  docker start 75cafc0d6fee
   22  docker start d83c0d7cfc94
   23  docker ps -a
   24  docker --help
   25  docker update 75cafc0d6fee
   26  docker update 75cafc0d6fee d83c0d7cfc94
   27  yum install git -y
   28  git --version
   29  yum install gi
   30  docker info
   31  docker -v
   32  which dcoker
   33  which docker
   34  which dockerd
   35  ps -eaf | grep dockerd
   36  which containerd
   37  docker -eaf | grep containerd
   38  ps -eaf | grep containerd
   39  history
   40  docker ps -a
   41  docker pull ubuntu
   42  docker ps -a
   43  docker rm a3c9542f3076
   44  docker ps -a
   45  docker rm d8cca0a8d62c
   46  docker rm d0584214f703b
   47  docker ps -a
   48  docker start 0584214f703b
   49  docker ps -a
   50  docker rm 0584214f703b
   51* docker
   52  docker rm 0584214f703b
   53  docker ps -a
   54  docker restart e3cb8e2fbf42
   55  docker ps -a
   56  docker stop e3cb8e2fbf42
   57  docker rm e3cb8e2fbf42
   58  docker ps -a
   59  docker start d4a3a68b47a9
   60  docker ps -a
   61  history
   62  docker pause d4a3a68b47a9
   63  docker start d4a3a68b47a9
   64  history
   65  docker ps -a
   66  docker pull https
   67  docker ps -a
   68  docker exec -it 75cafc0d6fee  /bin/bash
   69  docker ps -a
   70  docker kill d83c0d7cfc94
   71  docker ps -a
   72  docker rm d83c0d7cfc94
   73  docker ps -a
   74  docker kill d4a3a68b47a9
   75  docker start d4a3a68b47a9
   76  docker ps -a
   77  docker pull https
   78  docker pull httpd
   79  history
   80  docker images
   81  docker run -d ubuntu
   82  docker ps -a
   83  docker start 8b4b7eae0d66
   84  docker ps -a
   85  docker rm 8b4b7eae0d66
   86  docker ps -a
   87  docker run -d ubuntu
   88  docker ps -a
   89  docker kill 79e0ca51ae30
   90  docker start 79e0ca51ae30
   91  docker kill 79e0ca51ae30
   92  docker ps -a
   93  docker kill 79e0ca51ae30
   94  docker start 79e0ca51ae30
   95  docker ps -a
   96  history
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED              STATUS                      PORTS     NAMES
79e0ca51ae30   ubuntu        "bash"     About a minute ago   Exited (0) 20 seconds ago             elated_fermat
d4a3a68b47a9   hello-world   "/hello"   46 minutes ago       Exited (0) 8 minutes ago              hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago          Up 40 minutes                         dreamy_northcutt
[root@localhost ~]# docker pause 79e0ca51ae30
Error response from daemon: Container 79e0ca51ae3062ee53f9cdcdcaecd8a5b72efec47472f22954e23a252a69ef5e is not running
[root@localhost ~]# docker start 79e0ca51ae30
79e0ca51ae30
[root@localhost ~]# docker start 79e0ca51ae30
79e0ca51ae30
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                     PORTS     NAMES
79e0ca51ae30   ubuntu        "bash"     2 minutes ago    Exited (0) 4 seconds ago             elated_fermat
d4a3a68b47a9   hello-world   "/hello"   47 minutes ago   Exited (0) 9 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 41 minutes                        dreamy_northcutt
[root@localhost ~]# docker inpsect 75cafc0d6fee
docker: 'inpsect' is not a docker command.
See 'docker --help'
[root@localhost ~]# docker inspect 75cafc0d6fee
[
    {
        "Id": "75cafc0d6feed6e3bb58e5440848615c1d632b0608787f773cfdf7324289f9f0",
        "Created": "2021-07-21T03:23:53.810010743Z",
        "Path": "bash",
        "Args": [],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 32298,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2021-07-21T04:57:11.432175262Z",
            "FinishedAt": "2021-07-21T04:41:15.614452246Z"
        },
        "Image": "sha256:c29284518f497b8c5f49933e74e43ca5221e69c8251e780427f7d12f716625ff",
        "ResolvConfPath": "/var/lib/docker/containers/75cafc0d6feed6e3bb58e5440848615c1d632b0608787f773cfdf7324289f9f0/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/75cafc0d6feed6e3bb58e5440848615c1d632b0608787f773cfdf7324289f9f0/hostname",
        "HostsPath": "/var/lib/docker/containers/75cafc0d6feed6e3bb58e5440848615c1d632b0608787f773cfdf7324289f9f0/hosts",
        "LogPath": "/var/lib/docker/containers/75cafc0d6feed6e3bb58e5440848615c1d632b0608787f773cfdf7324289f9f0/75cafc0d6feed6e3bb58e5440848615c1d632b0608787f773cfdf7324289f9f0-json.log",
        "Name": "/dreamy_northcutt",
        "RestartCount": 0,
        "Driver": "overlay2",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "",
        "ExecIDs": [
            "864011e4b2d1dfa64dd0bfe4bba63f4b68a4968fbfea75c37d4a6b4c469b4604"
        ],
        "HostConfig": {
            "Binds": null,
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            },
            "NetworkMode": "default",
            "PortBindings": {},
            "RestartPolicy": {
                "Name": "no",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": null,
            "CapAdd": null,
            "CapDrop": null,
            "CgroupnsMode": "host",
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "private",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": false,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": null,
            "UTSMode": "",
            "UsernsMode": "",
            "ShmSize": 67108864,
            "Runtime": "runc",
            "ConsoleSize": [
                0,
                0
            ],
            "Isolation": "",
            "CpuShares": 0,
            "Memory": 0,
            "NanoCpus": 0,
            "CgroupParent": "",
            "BlkioWeight": 0,
            "BlkioWeightDevice": [],
            "BlkioDeviceReadBps": null,
            "BlkioDeviceWriteBps": null,
            "BlkioDeviceReadIOps": null,
            "BlkioDeviceWriteIOps": null,
            "CpuPeriod": 0,
            "CpuQuota": 0,
            "CpuRealtimePeriod": 0,
            "CpuRealtimeRuntime": 0,
            "CpusetCpus": "",
            "CpusetMems": "",
            "Devices": [],
            "DeviceCgroupRules": null,
            "DeviceRequests": null,
            "KernelMemory": 0,
            "KernelMemoryTCP": 0,
            "MemoryReservation": 0,
            "MemorySwap": 0,
            "MemorySwappiness": null,
            "OomKillDisable": false,
            "PidsLimit": null,
            "Ulimits": null,
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": [
                "/proc/asound",
                "/proc/acpi",
                "/proc/kcore",
                "/proc/keys",
                "/proc/latency_stats",
                "/proc/timer_list",
                "/proc/timer_stats",
                "/proc/sched_debug",
                "/proc/scsi",
                "/sys/firmware"
            ],
            "ReadonlyPaths": [
                "/proc/bus",
                "/proc/fs",
                "/proc/irq",
                "/proc/sys",
                "/proc/sysrq-trigger"
            ]
        },
        "GraphDriver": {
            "Data": {
                "LowerDir": "/var/lib/docker/overlay2/d979e83f418815ba41cdfe9cfa314d2da9a026c7d0fc49a06a4e28784d5d0344-init/diff:/var/lib/docker/overlay2/30c379b2ef0344227b749d85f2b3acb2f4eb5e80d5eb3d6c774e0756c44bed8b/diff",
                "MergedDir": "/var/lib/docker/overlay2/d979e83f418815ba41cdfe9cfa314d2da9a026c7d0fc49a06a4e28784d5d0344/merged",
                "UpperDir": "/var/lib/docker/overlay2/d979e83f418815ba41cdfe9cfa314d2da9a026c7d0fc49a06a4e28784d5d0344/diff",
                "WorkDir": "/var/lib/docker/overlay2/d979e83f418815ba41cdfe9cfa314d2da9a026c7d0fc49a06a4e28784d5d0344/work"
            },
            "Name": "overlay2"
        },
        "Mounts": [],
        "Config": {
            "Hostname": "75cafc0d6fee",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": true,
            "OpenStdin": true,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "Cmd": [
                "bash"
            ],
            "Image": "ubuntu",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {}
        },
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "821e502e4615f46592ded9f5a9c098e44452e1a2adba95ff449d6e67514247ee",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "/var/run/docker/netns/821e502e4615",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "33fd5c8c291ed8b68ef28bd85588d1429126f5ecf195edc29b39daf095333bf9",
            "Gateway": "172.17.0.1",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "172.17.0.2",
            "IPPrefixLen": 16,
            "IPv6Gateway": "",
            "MacAddress": "02:42:ac:11:00:02",
            "Networks": {
                "bridge": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": null,
                    "NetworkID": "5a526772a3eb1f99a77458456bc2af5652af8bef81fb6d7c84d4f901d882936c",
                    "EndpointID": "33fd5c8c291ed8b68ef28bd85588d1429126f5ecf195edc29b39daf095333bf9",
                    "Gateway": "172.17.0.1",
                    "IPAddress": "172.17.0.2",
                    "IPPrefixLen": 16,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "02:42:ac:11:00:02",
                    "DriverOpts": null
                }
            }
        }
    }
]
[root@localhost ~]# df -kh
Filesystem               Size  Used Avail Use% Mounted on
devtmpfs                 1.9G     0  1.9G   0% /dev
tmpfs                    1.9G     0  1.9G   0% /dev/shm
tmpfs                    1.9G  9.6M  1.9G   1% /run
tmpfs                    1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/mapper/centos-root   50G  7.3G   43G  15% /
/dev/mapper/centos-home   46G   33M   46G   1% /home
/dev/sda1               1014M  235M  780M  24% /boot
tmpfs                    379M   32K  379M   1% /run/user/0
/dev/sr0                  59M   59M     0 100% /run/media/root/VBox_GAs_6.1.22
overlay                   50G  7.3G   43G  15% /var/lib/docker/overlay2/d979e83f418815ba41cdfe9cfa314d2da9a026c7d0fc49a06a4e28784d5d0344/merged
[root@localhost ~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED        SIZE
ubuntu        latest    c29284518f49   7 days ago     72.8MB
httpd         latest    bd29370f84ea   12 days ago    138MB
hello-world   latest    d1165f221234   4 months ago   13.3kB
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                      PORTS     NAMES
79e0ca51ae30   ubuntu        "bash"     4 minutes ago    Exited (0) 2 minutes ago              elated_fermat
d4a3a68b47a9   hello-world   "/hello"   50 minutes ago   Exited (0) 11 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 43 minutes                         dreamy_northcutt
[root@localhost ~]# docker run ubuntu ls
bin
boot
dev
etc
home
lib
lib32
lib64
libx32
media
mnt
opt
proc
root
run
sbin
srv
sys
tmp
usr
var
[root@localhost ~]# docker run -d https
Unable to find image 'https:latest' locally
docker: Error response from daemon: pull access denied for https, repository does not exist or may require 'docker login': denied: requested access to the resource is denied.
See 'docker run --help'.
[root@localhost ~]# docker pull https
Using default tag: latest
^[[A^C
[root@localhost ~]# ^C
[root@localhost ~]# ^C
[root@localhost ~]# ^C
[root@localhost ~]# ^C
[root@localhost ~]# docker pull httpd
Using default tag: latest
latest: Pulling from library/httpd
Digest: sha256:1fd07d599a519b594b756d2e4e43a72edf7e30542ce646f5eb3328cf3b12341a
Status: Image is up to date for httpd:latest
docker.io/library/httpd:latest
[root@localhost ~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED        SIZE
ubuntu        latest    c29284518f49   7 days ago     72.8MB
httpd         latest    bd29370f84ea   12 days ago    138MB
hello-world   latest    d1165f221234   4 months ago   13.3kB
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED              STATUS                          PORTS     NAMES
82da9c001d75   ubuntu        "ls"       About a minute ago   Exited (0) About a minute ago             intelligent_napier
79e0ca51ae30   ubuntu        "bash"     6 minutes ago        Exited (0) 4 minutes ago                  elated_fermat
d4a3a68b47a9   hello-world   "/hello"   51 minutes ago       Exited (0) 13 minutes ago                 hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago          Up 45 minutes                             dreamy_northcutt
[root@localhost ~]# docker stop 82da9c001d75
82da9c001d75
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED              STATUS                          PORTS     NAMES
82da9c001d75   ubuntu        "ls"       About a minute ago   Exited (0) About a minute ago             intelligent_napier
79e0ca51ae30   ubuntu        "bash"     6 minutes ago        Exited (0) 4 minutes ago                  elated_fermat
d4a3a68b47a9   hello-world   "/hello"   52 minutes ago       Exited (0) 14 minutes ago                 hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago          Up 45 minutes                             dreamy_northcutt
[root@localhost ~]# docker kill 82da9c001d75
Error response from daemon: Cannot kill container: 82da9c001d75: Container 82da9c001d75bc4d5a604e0bb970678e36f0fc9bbd24c66afd3abf3a34f010fb is not running
[root@localhost ~]# sudo yum remove docker docker-engine
Loaded plugins: fastestmirror, langpacks
No Match for argument: docker
No Match for argument: docker-engine
No Packages marked for removal
[root@localhost ~]# sudo yum remove docker docker-engine-selinux
Loaded plugins: fastestmirror, langpacks
No Match for argument: docker
Resolving Dependencies
--> Running transaction check
---> Package container-selinux.noarch 2:2.119.2-1.911c772.el7_8 will be erased
--> Processing Dependency: container-selinux >= 2:2.74 for package: 3:docker-ce-20.10.7-3.el7.x86_64
--> Processing Dependency: container-selinux >= 2:2.74 for package: containerd.io-1.4.8-3.1.el7.x86_64
--> Running transaction check
---> Package containerd.io.x86_64 0:1.4.8-3.1.el7 will be erased
---> Package docker-ce.x86_64 3:20.10.7-3.el7 will be erased
--> Processing Dependency: docker-ce for package: docker-ce-rootless-extras-20.10.7-3.el7.x86_64
--> Running transaction check
---> Package docker-ce-rootless-extras.x86_64 0:20.10.7-3.el7 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================================================================
 Package                                        Arch                        Version                                        Repository                              Size
========================================================================================================================================================================
Removing:
 container-selinux                              noarch                      2:2.119.2-1.911c772.el7_8                      @extras                                 41 k
Removing for dependencies:
 containerd.io                                  x86_64                      1.4.8-3.1.el7                                  @docker-ce-stable                      112 M
 docker-ce                                      x86_64                      3:20.10.7-3.el7                                @docker-ce-stable                      115 M
 docker-ce-rootless-extras                      x86_64                      20.10.7-3.el7                                  @docker-ce-stable                       24 M

Transaction Summary
========================================================================================================================================================================
Remove  1 Package (+3 Dependent packages)

Installed size: 251 M
Is this ok [y/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Erasing    : docker-ce-rootless-extras-20.10.7-3.el7.x86_64                                                                                                       1/4
  Erasing    : 3:docker-ce-20.10.7-3.el7.x86_64                                                                                                                     2/4
  Erasing    : containerd.io-1.4.8-3.1.el7.x86_64                                                                                                                   3/4
  Erasing    : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch                                                                                                   4/4
  Verifying  : 3:docker-ce-20.10.7-3.el7.x86_64                                                                                                                     1/4
  Verifying  : containerd.io-1.4.8-3.1.el7.x86_64                                                                                                                   2/4
  Verifying  : docker-ce-rootless-extras-20.10.7-3.el7.x86_64                                                                                                       3/4
  Verifying  : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch                                                                                                   4/4

Removed:
  container-selinux.noarch 2:2.119.2-1.911c772.el7_8

Dependency Removed:
  containerd.io.x86_64 0:1.4.8-3.1.el7                 docker-ce.x86_64 3:20.10.7-3.el7                 docker-ce-rootless-extras.x86_64 0:20.10.7-3.el7

Complete!
[root@localhost ~]# docker images
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
[root@localhost ~]# docker ps -a
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
[root@localhost ~]# sudo -s
[root@localhost ~]# sudo yum install -y yum-utils device-mapper-persistent-data lvm2
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: centos.excellmedia.net
 * epel: repos.del.extreme-ix.org
 * extras: centos.excellmedia.net
 * updates: centos.excellmedia.net
Package yum-utils-1.1.31-54.el7_8.noarch already installed and latest version
Package device-mapper-persistent-data-0.8.5-3.el7_9.2.x86_64 already installed and latest version
Package 7:lvm2-2.02.187-6.el7_9.5.x86_64 already installed and latest version
Nothing to do
[root@localhost ~]# docker ps -a
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
[root@localhost ~]# sudo yum install -y yum-utils device-mapper-persistent-data lvm2sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo^C
[root@localhost ~]# sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror, langpacks
adding repo from: https://download.docker.com/linux/centos/docker-ce.repo
grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
[root@localhost ~]# sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: centos.excellmedia.net
 * epel: repos.del.extreme-ix.org
 * extras: centos.excellmedia.net
 * updates: centos.excellmedia.net
epel-release-latest-7.noarch.rpm                                                                                                                 |  15 kB  00:00:00
Examining /var/tmp/yum-root-hE30PM/epel-release-latest-7.noarch.rpm: epel-release-7-13.noarch
/var/tmp/yum-root-hE30PM/epel-release-latest-7.noarch.rpm: does not update installed package.
Error: Nothing to do
[root@localhost ~]# sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
Loaded plugins: fastestmirror, langpacks
[root@localhost ~]# sudo yum-config-manager --enable rhui-REGION-rhel-server-extrassudo yum install -y docker-ce^C
[root@localhost ~]# ^C
[root@localhost ~]# ^C
[root@localhost ~]# sudo yum install -y docker-ce
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: centos.excellmedia.net
 * epel: repos.del.extreme-ix.org
 * extras: centos.excellmedia.net
 * updates: centos.excellmedia.net
Resolving Dependencies
--> Running transaction check
---> Package docker-ce.x86_64 3:20.10.7-3.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: 3:docker-ce-20.10.7-3.el7.x86_64
--> Processing Dependency: containerd.io >= 1.4.1 for package: 3:docker-ce-20.10.7-3.el7.x86_64
--> Processing Dependency: docker-ce-rootless-extras for package: 3:docker-ce-20.10.7-3.el7.x86_64
--> Running transaction check
---> Package container-selinux.noarch 2:2.119.2-1.911c772.el7_8 will be installed
---> Package containerd.io.x86_64 0:1.4.8-3.1.el7 will be installed
---> Package docker-ce-rootless-extras.x86_64 0:20.10.7-3.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================================================================
 Package                                        Arch                        Version                                         Repository                             Size
========================================================================================================================================================================
Installing:
 docker-ce                                      x86_64                      3:20.10.7-3.el7                                 docker-ce-stable                       27 M
Installing for dependencies:
 container-selinux                              noarch                      2:2.119.2-1.911c772.el7_8                       extras                                 40 k
 containerd.io                                  x86_64                      1.4.8-3.1.el7                                   docker-ce-stable                       30 M
 docker-ce-rootless-extras                      x86_64                      20.10.7-3.el7                                   docker-ce-stable                      9.2 M

Transaction Summary
========================================================================================================================================================================
Install  1 Package (+3 Dependent packages)

Total download size: 66 M
Installed size: 251 M
Downloading packages:
(1/4): container-selinux-2.119.2-1.911c772.el7_8.noarch.rpm                                                                                      |  40 kB  00:00:00
(2/4): containerd.io-1.4.8-3.1.el7.x86_64.rpm                                                                                                    |  30 MB  00:00:07
(3/4): docker-ce-20.10.7-3.el7.x86_64.rpm                                                                                                        |  27 MB  00:00:08
(4/4): docker-ce-rootless-extras-20.10.7-3.el7.x86_64.rpm                                                                                        | 9.2 MB  00:00:01
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                   7.3 MB/s |  66 MB  00:00:08
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch                                                                                                   1/4
  Installing : containerd.io-1.4.8-3.1.el7.x86_64                                                                                                                   2/4
  Installing : docker-ce-rootless-extras-20.10.7-3.el7.x86_64                                                                                                       3/4
  Installing : 3:docker-ce-20.10.7-3.el7.x86_64                                                                                                                     4/4
  Verifying  : 3:docker-ce-20.10.7-3.el7.x86_64                                                                                                                     1/4
  Verifying  : containerd.io-1.4.8-3.1.el7.x86_64                                                                                                                   2/4
  Verifying  : docker-ce-rootless-extras-20.10.7-3.el7.x86_64                                                                                                       3/4
  Verifying  : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch                                                                                                   4/4

Installed:
  docker-ce.x86_64 3:20.10.7-3.el7

Dependency Installed:
  container-selinux.noarch 2:2.119.2-1.911c772.el7_8           containerd.io.x86_64 0:1.4.8-3.1.el7           docker-ce-rootless-extras.x86_64 0:20.10.7-3.el7

Complete!
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                      PORTS     NAMES
82da9c001d75   ubuntu        "ls"       6 minutes ago    Exited (0) 6 minutes ago              intelligent_napier
79e0ca51ae30   ubuntu        "bash"     11 minutes ago   Exited (0) 9 minutes ago              elated_fermat
d4a3a68b47a9   hello-world   "/hello"   56 minutes ago   Exited (0) 18 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Exited (0) 3 minutes ago              dreamy_northcutt
[root@localhost ~]# docker start 75cafc0d6fee
75cafc0d6fee
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                      PORTS     NAMES
82da9c001d75   ubuntu        "ls"       6 minutes ago    Exited (0) 6 minutes ago              intelligent_napier
79e0ca51ae30   ubuntu        "bash"     11 minutes ago   Exited (0) 9 minutes ago              elated_fermat
d4a3a68b47a9   hello-world   "/hello"   57 minutes ago   Exited (0) 18 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 1 second                           dreamy_northcutt
[root@localhost ~]# docker kill 82da9c001d75
Error response from daemon: Cannot kill container: 82da9c001d75: Container 82da9c001d75bc4d5a604e0bb970678e36f0fc9bbd24c66afd3abf3a34f010fb is not running
[root@localhost ~]# docker start 82da9c001d75
82da9c001d75
[root@localhost ~]# docker kill 82da9c001d75
Error response from daemon: Cannot kill container: 82da9c001d75: Container 82da9c001d75bc4d5a604e0bb970678e36f0fc9bbd24c66afd3abf3a34f010fb is not running
[root@localhost ~]# docker rm 82da9c001d75
82da9c001d75
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                      PORTS     NAMES
79e0ca51ae30   ubuntu        "bash"     12 minutes ago   Exited (0) 10 minutes ago             elated_fermat
d4a3a68b47a9   hello-world   "/hello"   57 minutes ago   Exited (0) 19 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 33 seconds                         dreamy_northcutt
[root@localhost ~]# docker start 79e0ca51ae30
79e0ca51ae30
[root@localhost ~]# docker rm 79e0ca51ae30
79e0ca51ae30
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"   57 minutes ago   Exited (0) 19 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 55 seconds                         dreamy_northcutt
[root@localhost ~]# docker pull https
Using default tag: latest
Error response from daemon: pull access denied for https, repository does not exist or may require 'docker login': denied: requested access to the resource is denied
[root@localhost ~]# docker pull httpd
Using default tag: latest
latest: Pulling from library/httpd
Digest: sha256:1fd07d599a519b594b756d2e4e43a72edf7e30542ce646f5eb3328cf3b12341a
Status: Image is up to date for httpd:latest
docker.io/library/httpd:latest
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND    CREATED          STATUS                      PORTS     NAMES
d4a3a68b47a9   hello-world   "/hello"   59 minutes ago   Exited (0) 20 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"     2 hours ago      Up 2 minutes                          dreamy_northcutt
[root@localhost ~]# docker run -d httpd
e57a2bfc474edee7257f9bbc5e80f3f7a1b351c491ac5233b0dc2d39a7b4438a
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                      PORTS     NAMES
e57a2bfc474e   httpd         "httpd-foreground"   3 seconds ago    Up 2 seconds                80/tcp    distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             59 minutes ago   Exited (0) 21 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               2 hours ago      Up 2 minutes                          dreamy_northcutt
[root@localhost ~]# docker exec -it 75cafc0d6fee /bin/bash
root@75cafc0d6fee:/# ls
bin  boot  dev  etc  home  lib  lib32  lib64  libx32  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
root@75cafc0d6fee:/# docker attach 75cafc0d6fee
bash: docker: command not found
root@75cafc0d6fee:/# docker ps
bash: docker: command not found
root@75cafc0d6fee:/# docker run -d -p 80:80 https
bash: docker: command not found
root@75cafc0d6fee:/# docker run -d -p 80:80 httpd
bash: docker: command not found
root@75cafc0d6fee:/# read escape sequence
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED             STATUS                      PORTS     NAMES
e57a2bfc474e   httpd         "httpd-foreground"   2 minutes ago       Up 2 minutes                80/tcp    distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             About an hour ago   Exited (0) 23 minutes ago             hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               2 hours ago         Up 4 minutes                          dreamy_northcutt
[root@localhost ~]# docker run -d -p 80:80 httpd
99a9b3f7f56c4280ee8e6a22d4ce39f2f4aad51f36ce5e0afa07c79ae9068591
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED             STATUS                      PORTS                               NAMES
99a9b3f7f56c   httpd         "httpd-foreground"   4 seconds ago       Up 3 seconds                0.0.0.0:80->80/tcp, :::80->80/tcp   sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   2 minutes ago       Up 2 minutes                80/tcp                              distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             About an hour ago   Exited (0) 23 minutes ago                                       hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               2 hours ago         Up 5 minutes                                                    dreamy_northcutt
[root@localhost ~]# docker attach 75cafc0d6fee
root@75cafc0d6fee:/# docker ps -a
bash: docker: command not found
root@75cafc0d6fee:/# read escape sequence
[root@localhost ~]# ls
anaconda-ks.cfg  Desktop  Documents  Downloads  initial-setup-ks.cfg  Music  Pictures  Public  Templates  Videos
[root@localhost ~]# history
    1  ifconfig
    2  sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    3  docker ps -a
    4  sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    5  sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    6  sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
    7  sudo yum install -y docker-ce
    8  docker ps -a
    9  docker start 75cafc0d6fee
   10  docker ps -a
   11  docker kill 82da9c001d75
   12  docker start 82da9c001d75
   13  docker kill 82da9c001d75
   14  docker rm 82da9c001d75
   15  docker ps -a
   16  docker start 79e0ca51ae30
   17  docker rm 79e0ca51ae30
   18  docker ps -a
   19  docker pull https
   20  docker pull httpd
   21  docker ps -a
   22  docker run -d httpd
   23  docker ps -a
   24  docker exec -it 75cafc0d6fee /bin/bash
   25  docker ps -a
   26  docker run -d -p 80:80 httpd
   27  docker ps -a
   28  docker attach 75cafc0d6fee
   29  ls
   30  history
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED             STATUS                      PORTS                               NAMES
99a9b3f7f56c   httpd         "httpd-foreground"   6 minutes ago       Up 5 minutes                0.0.0.0:80->80/tcp, :::80->80/tcp   sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   8 minutes ago       Up 8 minutes                80/tcp                              distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             About an hour ago   Exited (0) 29 minutes ago                                       hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               3 hours ago         Up 10 minutes                                                   dreamy_northcutt
[root@localhost ~]#  docker run -d -p 80:80 httpd
106e7c9b43b8efa114e7c3d214252916a089f77e321a9bfd56b073225dfd9e1d
docker: Error response from daemon: driver failed programming external connectivity on endpoint suspicious_allen (9ae2e8337afd2b76abdba61cd63a18c75e96faa2a9a10e2f11c610e1c98d903b): Bind for 0.0.0.0:80 failed: port is already allocated.
[root@localhost ~]# docker run -d -p 81:80 httpddocker run -d -p 81:80 httpd
Unable to find image 'httpddocker:latest' locally
docker: Error response from daemon: pull access denied for httpddocker, repository does not exist or may require 'docker login': denied: requested access to the resource is denied.
See 'docker run --help'.
[root@localhost ~]# docker run -d -p 82:80 httpd
317020ee19e1f218d6c726ae15c55798e09a63f3bf2f6f20b963215e9383244f
[root@localhost ~]# docker run -d -p 81:80
"docker run" requires at least 1 argument.
See 'docker run --help'.

Usage:  docker run [OPTIONS] IMAGE [COMMAND] [ARG...]

Run a command in a new container
[root@localhost ~]# docker run -d -p 81:80 https
Unable to find image 'https:latest' locally
docker: Error response from daemon: pull access denied for https, repository does not exist or may require 'docker login': denied: requested access to the resource is denied.
See 'docker run --help'.
[root@localhost ~]# docker run -d -p 81:80 httpd
7bf8088b0a5f580003c72bc06edd236e3e7094c87c42bdeac0db64418e37a3a4
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED              STATUS                      PORTS                               NAMES
7bf8088b0a5f   httpd         "httpd-foreground"   6 seconds ago        Up 5 seconds                0.0.0.0:81->80/tcp, :::81->80/tcp   suspicious_poitras
317020ee19e1   httpd         "httpd-foreground"   58 seconds ago       Up 57 seconds               0.0.0.0:82->80/tcp, :::82->80/tcp   youthful_babbage
106e7c9b43b8   httpd         "httpd-foreground"   About a minute ago   Created                                                         suspicious_allen
99a9b3f7f56c   httpd         "httpd-foreground"   8 minutes ago        Up 8 minutes                0.0.0.0:80->80/tcp, :::80->80/tcp   sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   11 minutes ago       Up 11 minutes               80/tcp                              distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             About an hour ago    Exited (0) 32 minutes ago                                       hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               3 hours ago          Up 13 minutes                                                   dreamy_northcutt
[root@localhost ~]# history
    1  ifconfig
    2  sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    3  docker ps -a
    4  sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    5  sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    6  sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
    7  sudo yum install -y docker-ce
    8  docker ps -a
    9  docker start 75cafc0d6fee
   10  docker ps -a
   11  docker kill 82da9c001d75
   12  docker start 82da9c001d75
   13  docker kill 82da9c001d75
   14  docker rm 82da9c001d75
   15  docker ps -a
   16  docker start 79e0ca51ae30
   17  docker rm 79e0ca51ae30
   18  docker ps -a
   19  docker pull https
   20  docker pull httpd
   21  docker ps -a
   22  docker run -d httpd
   23  docker ps -a
   24  docker exec -it 75cafc0d6fee /bin/bash
   25  docker ps -a
   26  docker run -d -p 80:80 httpd
   27  docker ps -a
   28  docker attach 75cafc0d6fee
   29  ls
   30  history
   31  docker ps -a
   32   docker run -d -p 80:80 httpd
   33  docker run -d -p 81:80 httpddocker run -d -p 81:80 httpd
   34  docker run -d -p 82:80 httpd
   35  docker run -d -p 81:80
   36  docker run -d -p 81:80 https
   37  docker run -d -p 81:80 httpd
   38  docker ps -a
   39  history
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED             STATUS                      PORTS                               NAMES
7bf8088b0a5f   httpd         "httpd-foreground"   4 minutes ago       Up 4 minutes                0.0.0.0:81->80/tcp, :::81->80/tcp   suspicious_poitras
317020ee19e1   httpd         "httpd-foreground"   5 minutes ago       Up 5 minutes                0.0.0.0:82->80/tcp, :::82->80/tcp   youthful_babbage
106e7c9b43b8   httpd         "httpd-foreground"   6 minutes ago       Created                                                         suspicious_allen
99a9b3f7f56c   httpd         "httpd-foreground"   13 minutes ago      Up 13 minutes               0.0.0.0:80->80/tcp, :::80->80/tcp   sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   16 minutes ago      Up 16 minutes               80/tcp                              distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             About an hour ago   Exited (0) 37 minutes ago                                       hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               3 hours ago         Up 18 minutes                                                   dreamy_northcutt
[root@localhost ~]# docker attach 75cafc0d6fee
root@75cafc0d6fee:/# docker ps -a
bash: docker: command not found
root@75cafc0d6fee:/# read escape sequence
[root@localhost ~]# docker attach 75cafc0d6fee
root@75cafc0d6fee:/# ^C
root@75cafc0d6fee:/# read escape sequence
[root@localhost ~]# ls
anaconda-ks.cfg  Desktop  Documents  Downloads  initial-setup-ks.cfg  Music  Pictures  Public  Templates  Videos
[root@localhost ~]# bash: docker: command not found
bash: bash:: command not found...
Similar command is: 'bash'
[root@localhost ~]# docker images|grep httpd
httpd         latest    bd29370f84ea   12 days ago    138MB
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED             STATUS                      PORTS                               NAMES
7bf8088b0a5f   httpd         "httpd-foreground"   9 minutes ago       Up 9 minutes                0.0.0.0:81->80/tcp, :::81->80/tcp   suspicious_poitras
317020ee19e1   httpd         "httpd-foreground"   10 minutes ago      Up 10 minutes               0.0.0.0:82->80/tcp, :::82->80/tcp   youthful_babbage
106e7c9b43b8   httpd         "httpd-foreground"   10 minutes ago      Created                                                         suspicious_allen
99a9b3f7f56c   httpd         "httpd-foreground"   18 minutes ago      Up 17 minutes               0.0.0.0:80->80/tcp, :::80->80/tcp   sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   20 minutes ago      Up 20 minutes               80/tcp                              distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             About an hour ago   Exited (0) 41 minutes ago                                       hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               3 hours ago         Up 22 minutes                                                   dreamy_northcutt
[root@localhost ~]# docker run -d -p 8080:80 --name webserver httpd
39c22cc1cbaf645f9364efc3f0a8120b39f8c12b8338b777b4aa1db7f9656826
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED             STATUS                      PORTS                                   NAMES
39c22cc1cbaf   httpd         "httpd-foreground"   3 seconds ago       Up 2 seconds                0.0.0.0:8080->80/tcp, :::8080->80/tcp   webserver
7bf8088b0a5f   httpd         "httpd-foreground"   9 minutes ago       Up 9 minutes                0.0.0.0:81->80/tcp, :::81->80/tcp       suspicious_poitras
317020ee19e1   httpd         "httpd-foreground"   10 minutes ago      Up 10 minutes               0.0.0.0:82->80/tcp, :::82->80/tcp       youthful_babbage
106e7c9b43b8   httpd         "httpd-foreground"   10 minutes ago      Created                                                             suspicious_allen
99a9b3f7f56c   httpd         "httpd-foreground"   18 minutes ago      Up 18 minutes               0.0.0.0:80->80/tcp, :::80->80/tcp       sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   20 minutes ago      Up 20 minutes               80/tcp                                  distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             About an hour ago   Exited (0) 41 minutes ago                                           hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               3 hours ago         Up 23 minutes                                                       dreamy_northcutt
[root@localhost ~]# apt update
bash: apt: command not found...
[root@localhost ~]# curl -O https://raw.githubusercontent.com/spinnaker/halyard/master/install/debian/InstallHalyard.sh
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  9188  100  9188    0     0  17948      0 --:--:-- --:--:-- --:--:-- 17980
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED             STATUS                      PORTS                                   NAMES
39c22cc1cbaf   httpd         "httpd-foreground"   2 minutes ago       Up 2 minutes                0.0.0.0:8080->80/tcp, :::8080->80/tcp   webserver
7bf8088b0a5f   httpd         "httpd-foreground"   11 minutes ago      Up 11 minutes               0.0.0.0:81->80/tcp, :::81->80/tcp       suspicious_poitras
317020ee19e1   httpd         "httpd-foreground"   12 minutes ago      Up 12 minutes               0.0.0.0:82->80/tcp, :::82->80/tcp       youthful_babbage
106e7c9b43b8   httpd         "httpd-foreground"   12 minutes ago      Created                                                             suspicious_allen
99a9b3f7f56c   httpd         "httpd-foreground"   20 minutes ago      Up 20 minutes               0.0.0.0:80->80/tcp, :::80->80/tcp       sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   22 minutes ago      Up 22 minutes               80/tcp                                  distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             About an hour ago   Exited (0) 44 minutes ago                                           hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               3 hours ago         Up 25 minutes                                                       dreamy_northcutt
[root@localhost ~]# docker attach 75cafc0d6fee
root@75cafc0d6fee:/# curl -O https://raw.githubusercontent.com/spinnaker/halyard/master/install/debian/InstallHalyard.sh
bash: curl: command not found
root@75cafc0d6fee:/# curl -O https://raw.githubusercontent.com/spinnaker/halyard/master/install/debian/InstallHalyard.sh^C
root@75cafc0d6fee:/# ^C
root@75cafc0d6fee:/# sudo bash InstallHalyard.sh
bash: sudo: command not found
root@75cafc0d6fee:/# read escape sequence
[root@localhost ~]# git -version
Unknown option: -version
usage: git [--version] [--help] [-c name=value]
           [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]
           [-p|--paginate|--no-pager] [--no-replace-objects] [--bare]
           [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]
           <command> [<args>]
[root@localhost ~]# apt get install apache2
bash: apt: command not found...
[root@localhost ~]# sudo bash InstallHalyard.shdocker run -it ubuntu:latest /bin/bash
bash: InstallHalyard.shdocker: No such file or directory
[root@localhost ~]# apt-get install apache2
bash: apt-get: command not found...
[root@localhost ~]# apt-get install apache2
bash: apt-get: command not found...
[root@localhost ~]# apt-get install apache2
bash: apt-get: command not found...
[root@localhost ~]# docker attach 75cafc0d6fee
root@75cafc0d6fee:/# apt-get install git
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package git
root@75cafc0d6fee:/# apt-get install apache2
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package apache2
root@75cafc0d6fee:/# yum install apache2
bash: yum: command not found
root@75cafc0d6fee:/# E: Unable to locate package apache2
bash: E:: command not found
root@75cafc0d6fee:/# apt install git
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package git
root@75cafc0d6fee:/# docker ps -a
bash: docker: command not found
root@75cafc0d6fee:/# ls
bin  boot  dev  etc  home  lib  lib32  lib64  libx32  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
root@75cafc0d6fee:/# sudo apt-get install git
bash: sudo: command not found
root@75cafc0d6fee:/# which git
root@75cafc0d6fee:/# run apt update
bash: run: command not found
root@75cafc0d6fee:/# apt update
Get:1 http://archive.ubuntu.com/ubuntu focal InRelease [265 kB]
Get:2 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Get:3 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Get:4 http://archive.ubuntu.com/ubuntu focal-backports InRelease [101 kB]
Get:5 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages [11.3 MB]
Get:6 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages [985 kB]
Get:7 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages [1275 kB]
Get:8 http://archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages [177 kB]
Get:9 http://archive.ubuntu.com/ubuntu focal/restricted amd64 Packages [33.4 kB]
Get:10 http://archive.ubuntu.com/ubuntu focal-updates/restricted amd64 Packages [474 kB]
Get:11 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [1417 kB]
Get:12 http://archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 Packages [37.3 kB]
Get:13 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [1055 kB]
Get:14 http://archive.ubuntu.com/ubuntu focal-backports/universe amd64 Packages [6303 B]
Get:15 http://archive.ubuntu.com/ubuntu focal-backports/main amd64 Packages [2668 B]
Get:16 http://security.ubuntu.com/ubuntu focal-security/restricted amd64 Packages [428 kB]
Get:17 http://security.ubuntu.com/ubuntu focal-security/universe amd64 Packages [784 kB]
Get:18 http://security.ubuntu.com/ubuntu focal-security/multiverse amd64 Packages [32.7 kB]
Fetched 18.6 MB in 7s (2850 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
2 packages can be upgraded. Run 'apt list --upgradable' to see them.
root@75cafc0d6fee:/# apt install -y git
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  ca-certificates git-man krb5-locales less libasn1-8-heimdal libbrotli1 libbsd0 libcbor0.6 libcurl3-gnutls libedit2 liberror-perl libexpat1 libfido2-1
  libgdbm-compat4 libgdbm6 libgssapi-krb5-2 libgssapi3-heimdal libhcrypto4-heimdal libheimbase1-heimdal libheimntlm0-heimdal libhx509-5-heimdal libk5crypto3
  libkeyutils1 libkrb5-26-heimdal libkrb5-3 libkrb5support0 libldap-2.4-2 libldap-common libnghttp2-14 libperl5.30 libpsl5 libroken18-heimdal librtmp1 libsasl2-2
  libsasl2-modules libsasl2-modules-db libsqlite3-0 libssh-4 libssl1.1 libwind0-heimdal libx11-6 libx11-data libxau6 libxcb1 libxdmcp6 libxext6 libxmuu1 netbase
  openssh-client openssl patch perl perl-modules-5.30 publicsuffix xauth
Suggested packages:
  gettext-base git-daemon-run | git-daemon-sysvinit git-doc git-el git-email git-gui gitk gitweb git-cvs git-mediawiki git-svn gdbm-l10n krb5-doc krb5-user
  libsasl2-modules-gssapi-mit | libsasl2-modules-gssapi-heimdal libsasl2-modules-ldap libsasl2-modules-otp libsasl2-modules-sql keychain libpam-ssh monkeysphere
  ssh-askpass ed diffutils-doc perl-doc libterm-readline-gnu-perl | libterm-readline-perl-perl make libb-debug-perl liblocale-codes-perl
The following NEW packages will be installed:
  ca-certificates git git-man krb5-locales less libasn1-8-heimdal libbrotli1 libbsd0 libcbor0.6 libcurl3-gnutls libedit2 liberror-perl libexpat1 libfido2-1
  libgdbm-compat4 libgdbm6 libgssapi-krb5-2 libgssapi3-heimdal libhcrypto4-heimdal libheimbase1-heimdal libheimntlm0-heimdal libhx509-5-heimdal libk5crypto3
  libkeyutils1 libkrb5-26-heimdal libkrb5-3 libkrb5support0 libldap-2.4-2 libldap-common libnghttp2-14 libperl5.30 libpsl5 libroken18-heimdal librtmp1 libsasl2-2
  libsasl2-modules libsasl2-modules-db libsqlite3-0 libssh-4 libssl1.1 libwind0-heimdal libx11-6 libx11-data libxau6 libxcb1 libxdmcp6 libxext6 libxmuu1 netbase
  openssh-client openssl patch perl perl-modules-5.30 publicsuffix xauth
0 upgraded, 56 newly installed, 0 to remove and 2 not upgraded.
Need to get 19.7 MB of archives.
After this operation, 110 MB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 perl-modules-5.30 all 5.30.0-9ubuntu0.2 [2738 kB]
Get:2 http://archive.ubuntu.com/ubuntu focal/main amd64 libgdbm6 amd64 1.18.1-5 [27.4 kB]
Get:3 http://archive.ubuntu.com/ubuntu focal/main amd64 libgdbm-compat4 amd64 1.18.1-5 [6244 B]
Get:4 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libperl5.30 amd64 5.30.0-9ubuntu0.2 [3952 kB]
Get:5 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 perl amd64 5.30.0-9ubuntu0.2 [224 kB]
Get:6 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libssl1.1 amd64 1.1.1f-1ubuntu2.4 [1319 kB]
Get:7 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 openssl amd64 1.1.1f-1ubuntu2.4 [620 kB]
Get:8 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 ca-certificates all 20210119~20.04.1 [146 kB]
Get:9 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 less amd64 551-1ubuntu0.1 [123 kB]
Get:10 http://archive.ubuntu.com/ubuntu focal/main amd64 libbsd0 amd64 0.10.0-1 [45.4 kB]
Get:11 http://archive.ubuntu.com/ubuntu focal/main amd64 libexpat1 amd64 2.2.9-1build1 [73.3 kB]
Get:12 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libsqlite3-0 amd64 3.31.1-4ubuntu0.2 [549 kB]
Get:13 http://archive.ubuntu.com/ubuntu focal/main amd64 netbase all 6.1 [13.1 kB]
Get:14 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 krb5-locales all 1.17-6ubuntu4.1 [11.4 kB]
Get:15 http://archive.ubuntu.com/ubuntu focal/main amd64 libcbor0.6 amd64 0.6.0-0ubuntu1 [21.1 kB]
Get:16 http://archive.ubuntu.com/ubuntu focal/main amd64 libedit2 amd64 3.1-20191231-1 [87.0 kB]
Get:17 http://archive.ubuntu.com/ubuntu focal/main amd64 libfido2-1 amd64 1.3.1-1ubuntu2 [47.9 kB]
Get:18 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libkrb5support0 amd64 1.17-6ubuntu4.1 [30.9 kB]
Get:19 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libk5crypto3 amd64 1.17-6ubuntu4.1 [79.9 kB]
Get:20 http://archive.ubuntu.com/ubuntu focal/main amd64 libkeyutils1 amd64 1.6-6ubuntu1 [10.2 kB]
Get:21 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libkrb5-3 amd64 1.17-6ubuntu4.1 [330 kB]
Get:22 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libgssapi-krb5-2 amd64 1.17-6ubuntu4.1 [121 kB]
Get:23 http://archive.ubuntu.com/ubuntu focal/main amd64 libpsl5 amd64 0.21.0-1ubuntu1 [51.5 kB]
Get:24 http://archive.ubuntu.com/ubuntu focal/main amd64 libxau6 amd64 1:1.0.9-0ubuntu1 [7488 B]
Get:25 http://archive.ubuntu.com/ubuntu focal/main amd64 libxdmcp6 amd64 1:1.1.3-0ubuntu1 [10.6 kB]
Get:26 http://archive.ubuntu.com/ubuntu focal/main amd64 libxcb1 amd64 1.14-2 [44.7 kB]
Get:27 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libx11-data all 2:1.6.9-2ubuntu1.2 [113 kB]
Get:28 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libx11-6 amd64 2:1.6.9-2ubuntu1.2 [575 kB]
Get:29 http://archive.ubuntu.com/ubuntu focal/main amd64 libxext6 amd64 2:1.3.4-0ubuntu1 [29.1 kB]
Get:30 http://archive.ubuntu.com/ubuntu focal/main amd64 libxmuu1 amd64 2:1.1.3-0ubuntu1 [9728 B]
Get:31 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 openssh-client amd64 1:8.2p1-4ubuntu0.2 [671 kB]
Get:32 http://archive.ubuntu.com/ubuntu focal/main amd64 publicsuffix all 20200303.0012-1 [111 kB]
Get:33 http://archive.ubuntu.com/ubuntu focal/main amd64 xauth amd64 1:1.1-0ubuntu1 [25.0 kB]
Get:34 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libbrotli1 amd64 1.0.7-6ubuntu0.1 [267 kB]
Get:35 http://archive.ubuntu.com/ubuntu focal/main amd64 libroken18-heimdal amd64 7.7.0+dfsg-1ubuntu1 [41.8 kB]
Get:36 http://archive.ubuntu.com/ubuntu focal/main amd64 libasn1-8-heimdal amd64 7.7.0+dfsg-1ubuntu1 [181 kB]
Get:37 http://archive.ubuntu.com/ubuntu focal/main amd64 libheimbase1-heimdal amd64 7.7.0+dfsg-1ubuntu1 [29.7 kB]
Get:38 http://archive.ubuntu.com/ubuntu focal/main amd64 libhcrypto4-heimdal amd64 7.7.0+dfsg-1ubuntu1 [87.9 kB]
Get:39 http://archive.ubuntu.com/ubuntu focal/main amd64 libwind0-heimdal amd64 7.7.0+dfsg-1ubuntu1 [48.0 kB]
Get:40 http://archive.ubuntu.com/ubuntu focal/main amd64 libhx509-5-heimdal amd64 7.7.0+dfsg-1ubuntu1 [107 kB]
Get:41 http://archive.ubuntu.com/ubuntu focal/main amd64 libkrb5-26-heimdal amd64 7.7.0+dfsg-1ubuntu1 [208 kB]
Get:42 http://archive.ubuntu.com/ubuntu focal/main amd64 libheimntlm0-heimdal amd64 7.7.0+dfsg-1ubuntu1 [15.1 kB]
Get:43 http://archive.ubuntu.com/ubuntu focal/main amd64 libgssapi3-heimdal amd64 7.7.0+dfsg-1ubuntu1 [96.1 kB]
Get:44 http://archive.ubuntu.com/ubuntu focal/main amd64 libsasl2-modules-db amd64 2.1.27+dfsg-2 [14.9 kB]
Get:45 http://archive.ubuntu.com/ubuntu focal/main amd64 libsasl2-2 amd64 2.1.27+dfsg-2 [49.3 kB]
Get:46 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libldap-common all 2.4.49+dfsg-2ubuntu1.8 [16.6 kB]
Get:47 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libldap-2.4-2 amd64 2.4.49+dfsg-2ubuntu1.8 [155 kB]
Get:48 http://archive.ubuntu.com/ubuntu focal/main amd64 libnghttp2-14 amd64 1.40.0-1build1 [78.7 kB]
Get:49 http://archive.ubuntu.com/ubuntu focal/main amd64 librtmp1 amd64 2.4+20151223.gitfa8646d.1-2build1 [54.9 kB]
Get:50 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libssh-4 amd64 0.9.3-2ubuntu2.1 [170 kB]
Get:51 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libcurl3-gnutls amd64 7.68.0-1ubuntu2.5 [232 kB]
Get:52 http://archive.ubuntu.com/ubuntu focal/main amd64 liberror-perl all 0.17029-1 [26.5 kB]
Get:53 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 git-man all 1:2.25.1-1ubuntu3.1 [884 kB]
Get:54 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 git amd64 1:2.25.1-1ubuntu3.1 [4557 kB]
Get:55 http://archive.ubuntu.com/ubuntu focal/main amd64 libsasl2-modules amd64 2.1.27+dfsg-2 [49.1 kB]
Get:56 http://archive.ubuntu.com/ubuntu focal/main amd64 patch amd64 2.7.6-6 [105 kB]
Fetched 19.7 MB in 11s (1875 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package perl-modules-5.30.
(Reading database ... 4127 files and directories currently installed.)
Preparing to unpack .../00-perl-modules-5.30_5.30.0-9ubuntu0.2_all.deb ...
Unpacking perl-modules-5.30 (5.30.0-9ubuntu0.2) ...
Selecting previously unselected package libgdbm6:amd64.
Preparing to unpack .../01-libgdbm6_1.18.1-5_amd64.deb ...
Unpacking libgdbm6:amd64 (1.18.1-5) ...
Selecting previously unselected package libgdbm-compat4:amd64.
Preparing to unpack .../02-libgdbm-compat4_1.18.1-5_amd64.deb ...
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root@75cafc0d6fee:/# apt install -y apache2
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  apache2-bin apache2-data apache2-utils file libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap libcurl4 libicu66 libjansson4 liblua5.2-0 libmagic-mgc
  libmagic1 libxml2 mime-support ssl-cert tzdata xz-utils
Suggested packages:
  apache2-doc apache2-suexec-pristine | apache2-suexec-custom www-browser ufw openssl-blacklist
The following NEW packages will be installed:
  apache2 apache2-bin apache2-data apache2-utils file libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap libcurl4 libicu66 libjansson4 liblua5.2-0
  libmagic-mgc libmagic1 libxml2 mime-support ssl-cert tzdata xz-utils
0 upgraded, 20 newly installed, 0 to remove and 2 not upgraded.
Need to get 12.0 MB of archives.
After this operation, 55.0 MB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu focal/main amd64 libapr1 amd64 1.6.5-1ubuntu1 [91.4 kB]
Get:2 http://archive.ubuntu.com/ubuntu focal/main amd64 libaprutil1 amd64 1.6.1-4ubuntu2 [84.7 kB]
Get:3 http://archive.ubuntu.com/ubuntu focal/main amd64 libaprutil1-dbd-sqlite3 amd64 1.6.1-4ubuntu2 [10.5 kB]
Get:4 http://archive.ubuntu.com/ubuntu focal/main amd64 libaprutil1-ldap amd64 1.6.1-4ubuntu2 [8736 B]
Get:5 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libcurl4 amd64 7.68.0-1ubuntu2.5 [234 kB]
Get:6 http://archive.ubuntu.com/ubuntu focal/main amd64 libjansson4 amd64 2.12-1build1 [28.9 kB]
Get:7 http://archive.ubuntu.com/ubuntu focal/main amd64 liblua5.2-0 amd64 5.2.4-1.1build3 [106 kB]
Get:8 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 tzdata all 2021a-0ubuntu0.20.04 [295 kB]
Get:9 http://archive.ubuntu.com/ubuntu focal/main amd64 libicu66 amd64 66.1-2ubuntu2 [8520 kB]
Get:10 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libxml2 amd64 2.9.10+dfsg-5ubuntu0.20.04.1 [640 kB]
Get:11 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 apache2-bin amd64 2.4.41-4ubuntu3.4 [1180 kB]
Get:12 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 apache2-data all 2.4.41-4ubuntu3.4 [159 kB]
Get:13 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 apache2-utils amd64 2.4.41-4ubuntu3.4 [84.0 kB]
Get:14 http://archive.ubuntu.com/ubuntu focal/main amd64 mime-support all 3.64ubuntu1 [30.6 kB]
Get:15 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 apache2 amd64 2.4.41-4ubuntu3.4 [95.5 kB]
Get:16 http://archive.ubuntu.com/ubuntu focal/main amd64 libmagic-mgc amd64 1:5.38-4 [218 kB]
Get:17 http://archive.ubuntu.com/ubuntu focal/main amd64 libmagic1 amd64 1:5.38-4 [75.9 kB]
Get:18 http://archive.ubuntu.com/ubuntu focal/main amd64 file amd64 1:5.38-4 [23.3 kB]
Get:19 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 xz-utils amd64 5.2.4-1ubuntu1 [82.5 kB]
Get:20 http://archive.ubuntu.com/ubuntu focal/main amd64 ssl-cert all 1.0.39 [17.0 kB]
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Unpacking file (1:5.38-4) ...
Selecting previously unselected package xz-utils.
Preparing to unpack .../18-xz-utils_5.2.4-1ubuntu1_amd64.deb ...
Unpacking xz-utils (5.2.4-1ubuntu1) ...
Selecting previously unselected package ssl-cert.
Preparing to unpack .../19-ssl-cert_1.0.39_all.deb ...
Unpacking ssl-cert (1.0.39) ...
Setting up mime-support (3.64ubuntu1) ...
Setting up libmagic-mgc (1:5.38-4) ...
Setting up libmagic1:amd64 (1:5.38-4) ...
Setting up libapr1:amd64 (1.6.5-1ubuntu1) ...
Setting up file (1:5.38-4) ...
Setting up libjansson4:amd64 (2.12-1build1) ...
Setting up tzdata (2021a-0ubuntu0.20.04) ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.)
debconf: falling back to frontend: Readline
Configuring tzdata
------------------

Please select the geographic area in which you live. Subsequent configuration questions will narrow this down by presenting a list of cities, representing the time
zones in which they are located.

  1. Africa  2. America  3. Antarctica  4. Australia  5. Arctic  6. Asia  7. Atlantic  8. Europe  9. Indian  10. Pacific  11. SystemV  12. US  13. Etc
Geographic area: 9

Please select the city or region corresponding to your time zone.

  1. Antananarivo  2. Chagos  3. Christmas  4. Cocos  5. Comoro  6. Kerguelen  7. Mahe  8. Maldives  9. Mauritius  10. Mayotte  11. Reunion
Time zone: 11


Current default time zone: 'Indian/Reunion'
Local time is now:      Wed Jul 21 10:28:52 +04 2021.
Universal Time is now:  Wed Jul 21 06:28:52 UTC 2021.
Run 'dpkg-reconfigure tzdata' if you wish to change it.

Setting up ssl-cert (1.0.39) ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.)
debconf: falling back to frontend: Readline
Setting up xz-utils (5.2.4-1ubuntu1) ...
update-alternatives: using /usr/bin/xz to provide /usr/bin/lzma (lzma) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/man1/lzma.1.gz because associated file /usr/share/man/man1/xz.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/unlzma.1.gz because associated file /usr/share/man/man1/unxz.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzcat.1.gz because associated file /usr/share/man/man1/xzcat.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzmore.1.gz because associated file /usr/share/man/man1/xzmore.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzless.1.gz because associated file /usr/share/man/man1/xzless.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzdiff.1.gz because associated file /usr/share/man/man1/xzdiff.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzcmp.1.gz because associated file /usr/share/man/man1/xzcmp.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzgrep.1.gz because associated file /usr/share/man/man1/xzgrep.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzegrep.1.gz because associated file /usr/share/man/man1/xzegrep.1.gz (of link group lzma) doesn't exist
update-alternatives: warning: skip creation of /usr/share/man/man1/lzfgrep.1.gz because associated file /usr/share/man/man1/xzfgrep.1.gz (of link group lzma) doesn't exist
Setting up liblua5.2-0:amd64 (5.2.4-1.1build3) ...
Setting up libcurl4:amd64 (7.68.0-1ubuntu2.5) ...
Setting up apache2-data (2.4.41-4ubuntu3.4) ...
Setting up libaprutil1:amd64 (1.6.1-4ubuntu2) ...
Setting up libicu66:amd64 (66.1-2ubuntu2) ...
Setting up libaprutil1-ldap:amd64 (1.6.1-4ubuntu2) ...
Setting up libaprutil1-dbd-sqlite3:amd64 (1.6.1-4ubuntu2) ...
Setting up libxml2:amd64 (2.9.10+dfsg-5ubuntu0.20.04.1) ...
Setting up apache2-utils (2.4.41-4ubuntu3.4) ...
Setting up apache2-bin (2.4.41-4ubuntu3.4) ...
Setting up apache2 (2.4.41-4ubuntu3.4) ...
Enabling module mpm_event.
Enabling module authz_core.
Enabling module authz_host.
Enabling module authn_core.
Enabling module auth_basic.
Enabling module access_compat.
Enabling module authn_file.
Enabling module authz_user.
Enabling module alias.
Enabling module dir.
Enabling module autoindex.
Enabling module env.
Enabling module mime.
Enabling module negotiation.
Enabling module setenvif.
Enabling module filter.
Enabling module deflate.
Enabling module status.
Enabling module reqtimeout.
Enabling conf charset.
Enabling conf localized-error-pages.
Enabling conf other-vhosts-access-log.
Enabling conf security.
Enabling conf serve-cgi-bin.
Enabling site 000-default.
invoke-rc.d: could not determine current runlevel
invoke-rc.d: policy-rc.d denied execution of start.
Processing triggers for libc-bin (2.31-0ubuntu9.2) ...
root@75cafc0d6fee:/# ls
bin  boot  dev  etc  home  lib  lib32  lib64  libx32  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
root@75cafc0d6fee:/# read escape sequence
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                         PORTS                                   NAMES
39c22cc1cbaf   httpd         "httpd-foreground"   18 minutes ago   Up 18 minutes                  0.0.0.0:8080->80/tcp, :::8080->80/tcp   webserver
7bf8088b0a5f   httpd         "httpd-foreground"   27 minutes ago   Up 27 minutes                  0.0.0.0:81->80/tcp, :::81->80/tcp       suspicious_poitras
317020ee19e1   httpd         "httpd-foreground"   28 minutes ago   Up 28 minutes                  0.0.0.0:82->80/tcp, :::82->80/tcp       youthful_babbage
106e7c9b43b8   httpd         "httpd-foreground"   29 minutes ago   Created                                                                suspicious_allen
99a9b3f7f56c   httpd         "httpd-foreground"   36 minutes ago   Up 36 minutes                  0.0.0.0:80->80/tcp, :::80->80/tcp       sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   39 minutes ago   Up 39 minutes                  80/tcp                                  distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             2 hours ago      Exited (0) About an hour ago                                           hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               3 hours ago      Up 41 minutes                                                          dreamy_northcutt
[root@localhost ~]# wget localhost:8080
--2021-07-21 02:29:58--  http://localhost:8080/
Resolving localhost (localhost)... ::1, 127.0.0.1
Connecting to localhost (localhost)|::1|:8080... connected.
HTTP request sent, awaiting response... 200 OK
Length: 45 [text/html]
Saving to: ‘index.html’

100%[==============================================================================================================================>] 45          --.-K/s   in 0s

2021-07-21 02:29:58 (7.63 MB/s) - ‘index.html’ saved [45/45]

[root@localhost ~]# docker run -d -p 8080:80 --name webserver ubuntu
docker: Error response from daemon: Conflict. The container name "/webserver" is already in use by container "39c22cc1cbaf645f9364efc3f0a8120b39f8c12b8338b777b4aa1db7f9656826". You have to remove (or rename) that container to be able to reuse that name.
See 'docker run --help'.
[root@localhost ~]# docker run -d -p 8080:80 --name appserver ubuntu
7a55498157614bd1fc289e32981a371cc9b6d0010c09725939a0862b22ed48c5
docker: Error response from daemon: driver failed programming external connectivity on endpoint appserver (c4a440ed7f996df5d57a1240f0ba796cc63f1ce82bad8ca0522b30e728e93641): Bind for 0.0.0.0:8080 failed: port is already allocated.
[root@localhost ~]# docker run -d -p 8081:80 --name appserver ubuntu
docker: Error response from daemon: Conflict. The container name "/appserver" is already in use by container "7a55498157614bd1fc289e32981a371cc9b6d0010c09725939a0862b22ed48c5". You have to remove (or rename) that container to be able to reuse that name.
See 'docker run --help'.
[root@localhost ~]# docker run -d -p 8081:80 --name server ubuntu
7320dd9b3370b4b5079ed94ed677ca6a14349ff1a5ca02aa8e9ab20ef7432326
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED          STATUS                         PORTS                                   NAMES
7320dd9b3370   ubuntu        "bash"               7 seconds ago    Exited (0) 6 seconds ago                                               server
7a5549815761   ubuntu        "bash"               33 seconds ago   Created                                                                appserver
39c22cc1cbaf   httpd         "httpd-foreground"   20 minutes ago   Up 20 minutes                  0.0.0.0:8080->80/tcp, :::8080->80/tcp   webserver
7bf8088b0a5f   httpd         "httpd-foreground"   29 minutes ago   Up 29 minutes                  0.0.0.0:81->80/tcp, :::81->80/tcp       suspicious_poitras
317020ee19e1   httpd         "httpd-foreground"   30 minutes ago   Up 30 minutes                  0.0.0.0:82->80/tcp, :::82->80/tcp       youthful_babbage
106e7c9b43b8   httpd         "httpd-foreground"   31 minutes ago   Created                                                                suspicious_allen
99a9b3f7f56c   httpd         "httpd-foreground"   38 minutes ago   Up 38 minutes                  0.0.0.0:80->80/tcp, :::80->80/tcp       sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   41 minutes ago   Up 41 minutes                  80/tcp                                  distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             2 hours ago      Exited (0) About an hour ago                                           hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               3 hours ago      Up 43 minutes                                                          dreamy_northcutt
[root@localhost ~]# docker attach 75cafc0d6fee
root@75cafc0d6fee:/# ls
bin  boot  dev  etc  home  lib  lib32  lib64  libx32  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
root@75cafc0d6fee:/#

How to create a image using Dockerfile

How to share an docker image using hub.docker.com?

Removing intermediate container dde6276f8b36
 ---> d03a3fcb6ab8
Step 14/34 : ENV TINI_VERSION 0.14.0
 ---> Running in c7a68caa1d47
Removing intermediate container c7a68caa1d47
 ---> b61ea158ad5f
Step 15/34 : ENV TINI_SHA 6c41ec7d33e857d4779f14d9c74924cab0c7973485d2972419a3b7c7620ff5fd
 ---> Running in 8f651e9e226c
Removing intermediate container 8f651e9e226c
 ---> f07bb2384643
Step 16/34 : RUN curl -fsSL https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-static-amd64 -o /bin/tini && chmod +x /bin/tini   && echo "$TINI_SHA  /bin/tini" | sha256sum -c -
 ---> Running in 56a31ebfbc8b
/bin/tini: OK
Removing intermediate container 56a31ebfbc8b
 ---> c90cbb6ca76e
Step 17/34 : COPY init.groovy /usr/share/jenkins/ref/init.groovy.d/tcp-slave-agent-port.groovy
COPY failed: file not found in build context or excluded by .dockerignore: stat init.groovy: file does not exist
[root@localhost suresh]#
[root@localhost suresh]# vi dockerfile
[root@localhost suresh]# FROM ubuntu
bash: FROM: command not found...
[root@localhost suresh]# MAINTAINER Rajesh Kumar <rajesh@devopsschool.com?
bash: rajesh@devopsschool.com?: No such file or directory
[root@localhost suresh]# RUN apt-get update
bash: RUN: command not found...
[root@localhost suresh]# RUN apt-get install git -y
bash: RUN: command not found...
[root@localhost suresh]# COPY index.html /opt^C
[root@localhost suresh]# ^C
[root@localhost suresh]# ^C
[root@localhost suresh]# ^C
[root@localhost suresh]# ^C
[root@localhost suresh]# clear
[root@localhost suresh]# touch index.html
[root@localhost suresh]# docker build -t install-git .
Sending build context to Docker daemon   2.56kB
Step 1/5 : FROM ubuntu
 ---> c29284518f49
Step 2/5 : MAINTAINER Rajesh Kumar <sureshramisetti.br@gmail.com?
 ---> Running in b1b6c694d88e
Removing intermediate container b1b6c694d88e
 ---> 629e1f351472
Step 3/5 : RUN apt-get update
 ---> Running in 57e88f6b7c02
Get:1 http://archive.ubuntu.com/ubuntu focal InRelease [265 kB]
Get:2 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Get:3 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Get:4 http://archive.ubuntu.com/ubuntu focal-backports InRelease [101 kB]
Get:5 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages [1275 kB]
Get:6 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages [986 kB]
Get:7 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages [11.3 MB]
Get:8 http://archive.ubuntu.com/ubuntu focal/restricted amd64 Packages [33.4 kB]
Get:9 http://archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages [177 kB]
Get:10 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [1417 kB]
Get:11 http://security.ubuntu.com/ubuntu focal-security/restricted amd64 Packages [428 kB]
Get:12 http://archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 Packages [37.3 kB]
Get:13 http://archive.ubuntu.com/ubuntu focal-updates/restricted amd64 Packages [474 kB]
Get:14 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [1055 kB]
Get:15 http://archive.ubuntu.com/ubuntu focal-backports/main amd64 Packages [2668 B]
Get:16 http://archive.ubuntu.com/ubuntu focal-backports/universe amd64 Packages [6303 B]
Get:17 http://security.ubuntu.com/ubuntu focal-security/universe amd64 Packages [784 kB]
Get:18 http://security.ubuntu.com/ubuntu focal-security/multiverse amd64 Packages [34.7 kB]
Fetched 18.6 MB in 5s (4013 kB/s)
Reading package lists...
Removing intermediate container 57e88f6b7c02
 ---> 4ad084e71cbd
Step 4/5 : RUN apt-get install git -y
 ---> Running in b85f3d12a43b
Reading package lists...
Building dependency tree...
Reading state information...
The following additional packages will be installed:
  ca-certificates git-man krb5-locales less libasn1-8-heimdal libbrotli1
  libbsd0 libcbor0.6 libcurl3-gnutls libedit2 liberror-perl libexpat1
  libfido2-1 libgdbm-compat4 libgdbm6 libgssapi-krb5-2 libgssapi3-heimdal
  libhcrypto4-heimdal libheimbase1-heimdal libheimntlm0-heimdal
  libhx509-5-heimdal libk5crypto3 libkeyutils1 libkrb5-26-heimdal libkrb5-3
  libkrb5support0 libldap-2.4-2 libldap-common libnghttp2-14 libperl5.30
  libpsl5 libroken18-heimdal librtmp1 libsasl2-2 libsasl2-modules
  libsasl2-modules-db libsqlite3-0 libssh-4 libssl1.1 libwind0-heimdal
  libx11-6 libx11-data libxau6 libxcb1 libxdmcp6 libxext6 libxmuu1 netbase
  openssh-client openssl patch perl perl-modules-5.30 publicsuffix xauth
Suggested packages:
  gettext-base git-daemon-run | git-daemon-sysvinit git-doc git-el git-email
  git-gui gitk gitweb git-cvs git-mediawiki git-svn gdbm-l10n krb5-doc
  krb5-user libsasl2-modules-gssapi-mit | libsasl2-modules-gssapi-heimdal
  libsasl2-modules-ldap libsasl2-modules-otp libsasl2-modules-sql keychain
  libpam-ssh monkeysphere ssh-askpass ed diffutils-doc perl-doc
  libterm-readline-gnu-perl | libterm-readline-perl-perl make libb-debug-perl
  liblocale-codes-perl
The following NEW packages will be installed:
  ca-certificates git git-man krb5-locales less libasn1-8-heimdal libbrotli1
  libbsd0 libcbor0.6 libcurl3-gnutls libedit2 liberror-perl libexpat1
  libfido2-1 libgdbm-compat4 libgdbm6 libgssapi-krb5-2 libgssapi3-heimdal
  libhcrypto4-heimdal libheimbase1-heimdal libheimntlm0-heimdal
  libhx509-5-heimdal libk5crypto3 libkeyutils1 libkrb5-26-heimdal libkrb5-3
  libkrb5support0 libldap-2.4-2 libldap-common libnghttp2-14 libperl5.30
  libpsl5 libroken18-heimdal librtmp1 libsasl2-2 libsasl2-modules
  libsasl2-modules-db libsqlite3-0 libssh-4 libssl1.1 libwind0-heimdal
  libx11-6 libx11-data libxau6 libxcb1 libxdmcp6 libxext6 libxmuu1 netbase
  openssh-client openssl patch perl perl-modules-5.30 publicsuffix xauth
0 upgraded, 56 newly installed, 0 to remove and 2 not upgraded.
Need to get 19.7 MB of archives.
After this operation, 110 MB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 perl-modules-5.30 all 5.30.0-9ubuntu0.2 [2738 kB]
Get:2 http://archive.ubuntu.com/ubuntu focal/main amd64 libgdbm6 amd64 1.18.1-5 [27.4 kB]
Get:3 http://archive.ubuntu.com/ubuntu focal/main amd64 libgdbm-compat4 amd64 1.18.1-5 [6244 B]
Get:4 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libperl5.30 amd64 5.30.0-9ubuntu0.2 [3952 kB]
Get:5 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 perl amd64 5.30.0-9ubuntu0.2 [224 kB]
Get:6 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libssl1.1 amd64 1.1.1f-1ubuntu2.4 [1319 kB]
Get:7 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 openssl amd64 1.1.1f-1ubuntu2.4 [620 kB]
Get:8 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 ca-certificates all 20210119~20.04.1 [146 kB]
Get:9 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 less amd64 551-1ubuntu0.1 [123 kB]
Get:10 http://archive.ubuntu.com/ubuntu focal/main amd64 libbsd0 amd64 0.10.0-1 [45.4 kB]
Get:11 http://archive.ubuntu.com/ubuntu focal/main amd64 libexpat1 amd64 2.2.9-1build1 [73.3 kB]
Get:12 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libsqlite3-0 amd64 3.31.1-4ubuntu0.2 [549 kB]
Get:13 http://archive.ubuntu.com/ubuntu focal/main amd64 netbase all 6.1 [13.1 kB]
Get:14 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 krb5-locales all 1.17-6ubuntu4.1 [11.4 kB]
Get:15 http://archive.ubuntu.com/ubuntu focal/main amd64 libcbor0.6 amd64 0.6.0-0ubuntu1 [21.1 kB]
Get:16 http://archive.ubuntu.com/ubuntu focal/main amd64 libedit2 amd64 3.1-20191231-1 [87.0 kB]
Get:17 http://archive.ubuntu.com/ubuntu focal/main amd64 libfido2-1 amd64 1.3.1-1ubuntu2 [47.9 kB]
Get:18 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libkrb5support0 amd64 1.17-6ubuntu4.1 [30.9 kB]
Get:19 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libk5crypto3 amd64 1.17-6ubuntu4.1 [79.9 kB]
Get:20 http://archive.ubuntu.com/ubuntu focal/main amd64 libkeyutils1 amd64 1.6-6ubuntu1 [10.2 kB]
Get:21 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libkrb5-3 amd64 1.17-6ubuntu4.1 [330 kB]
Get:22 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libgssapi-krb5-2 amd64 1.17-6ubuntu4.1 [121 kB]
Get:23 http://archive.ubuntu.com/ubuntu focal/main amd64 libpsl5 amd64 0.21.0-1ubuntu1 [51.5 kB]
Get:24 http://archive.ubuntu.com/ubuntu focal/main amd64 libxau6 amd64 1:1.0.9-0ubuntu1 [7488 B]
Get:25 http://archive.ubuntu.com/ubuntu focal/main amd64 libxdmcp6 amd64 1:1.1.3-0ubuntu1 [10.6 kB]
Get:26 http://archive.ubuntu.com/ubuntu focal/main amd64 libxcb1 amd64 1.14-2 [44.7 kB]
Get:27 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libx11-data all 2:1.6.9-2ubuntu1.2 [113 kB]
Get:28 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libx11-6 amd64 2:1.6.9-2ubuntu1.2 [575 kB]
Get:29 http://archive.ubuntu.com/ubuntu focal/main amd64 libxext6 amd64 2:1.3.4-0ubuntu1 [29.1 kB]
Get:30 http://archive.ubuntu.com/ubuntu focal/main amd64 libxmuu1 amd64 2:1.1.3-0ubuntu1 [9728 B]
Get:31 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 openssh-client amd64 1:8.2p1-4ubuntu0.2 [671 kB]
Get:32 http://archive.ubuntu.com/ubuntu focal/main amd64 publicsuffix all 20200303.0012-1 [111 kB]
Get:33 http://archive.ubuntu.com/ubuntu focal/main amd64 xauth amd64 1:1.1-0ubuntu1 [25.0 kB]
Get:34 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libbrotli1 amd64 1.0.7-6ubuntu0.1 [267 kB]
Get:35 http://archive.ubuntu.com/ubuntu focal/main amd64 libroken18-heimdal amd64 7.7.0+dfsg-1ubuntu1 [41.8 kB]
Get:36 http://archive.ubuntu.com/ubuntu focal/main amd64 libasn1-8-heimdal amd64 7.7.0+dfsg-1ubuntu1 [181 kB]
Get:37 http://archive.ubuntu.com/ubuntu focal/main amd64 libheimbase1-heimdal amd64 7.7.0+dfsg-1ubuntu1 [29.7 kB]
Get:38 http://archive.ubuntu.com/ubuntu focal/main amd64 libhcrypto4-heimdal amd64 7.7.0+dfsg-1ubuntu1 [87.9 kB]
Get:39 http://archive.ubuntu.com/ubuntu focal/main amd64 libwind0-heimdal amd64 7.7.0+dfsg-1ubuntu1 [48.0 kB]
Get:40 http://archive.ubuntu.com/ubuntu focal/main amd64 libhx509-5-heimdal amd64 7.7.0+dfsg-1ubuntu1 [107 kB]
Get:41 http://archive.ubuntu.com/ubuntu focal/main amd64 libkrb5-26-heimdal amd64 7.7.0+dfsg-1ubuntu1 [208 kB]
Get:42 http://archive.ubuntu.com/ubuntu focal/main amd64 libheimntlm0-heimdal amd64 7.7.0+dfsg-1ubuntu1 [15.1 kB]
Get:43 http://archive.ubuntu.com/ubuntu focal/main amd64 libgssapi3-heimdal amd64 7.7.0+dfsg-1ubuntu1 [96.1 kB]
Get:44 http://archive.ubuntu.com/ubuntu focal/main amd64 libsasl2-modules-db amd64 2.1.27+dfsg-2 [14.9 kB]
Get:45 http://archive.ubuntu.com/ubuntu focal/main amd64 libsasl2-2 amd64 2.1.27+dfsg-2 [49.3 kB]
Get:46 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libldap-common all 2.4.49+dfsg-2ubuntu1.8 [16.6 kB]
Get:47 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libldap-2.4-2 amd64 2.4.49+dfsg-2ubuntu1.8 [155 kB]
Get:48 http://archive.ubuntu.com/ubuntu focal/main amd64 libnghttp2-14 amd64 1.40.0-1build1 [78.7 kB]
Get:49 http://archive.ubuntu.com/ubuntu focal/main amd64 librtmp1 amd64 2.4+20151223.gitfa8646d.1-2build1 [54.9 kB]
Get:50 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libssh-4 amd64 0.9.3-2ubuntu2.1 [170 kB]
Get:51 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libcurl3-gnutls amd64 7.68.0-1ubuntu2.5 [232 kB]
Get:52 http://archive.ubuntu.com/ubuntu focal/main amd64 liberror-perl all 0.17029-1 [26.5 kB]
Get:53 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 git-man all 1:2.25.1-1ubuntu3.1 [884 kB]
Get:54 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 git amd64 1:2.25.1-1ubuntu3.1 [4557 kB]
Get:55 http://archive.ubuntu.com/ubuntu focal/main amd64 libsasl2-modules amd64 2.1.27+dfsg-2 [49.1 kB]
Get:56 http://archive.ubuntu.com/ubuntu focal/main amd64 patch amd64 2.7.6-6 [105 kB]
debconf: delaying package configuration, since apt-utils is not installed
Fetched 19.7 MB in 6s (3197 kB/s)
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debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
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Setting up libxdmcp6:amd64 (1:1.1.3-0ubuntu1) ...
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Setting up libasn1-8-heimdal:amd64 (7.7.0+dfsg-1ubuntu1) ...
Setting up libedit2:amd64 (3.1-20191231-1) ...
Setting up libhcrypto4-heimdal:amd64 (7.7.0+dfsg-1ubuntu1) ...
Setting up ca-certificates (20210119~20.04.1) ...
debconf: unable to initialize frontend: Dialog
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Updating certificates in /etc/ssl/certs...
129 added, 0 removed; done.
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Setting up libgssapi-krb5-2:amd64 (1.17-6ubuntu4.1) ...
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Setting up libgssapi3-heimdal:amd64 (7.7.0+dfsg-1ubuntu1) ...
Setting up libldap-2.4-2:amd64 (2.4.49+dfsg-2ubuntu1.8) ...
Setting up libcurl3-gnutls:amd64 (7.68.0-1ubuntu2.5) ...
Setting up git (1:2.25.1-1ubuntu3.1) ...
Processing triggers for libc-bin (2.31-0ubuntu9.2) ...
Processing triggers for ca-certificates (20210119~20.04.1) ...
Updating certificates in /etc/ssl/certs...
0 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d...
done.
Removing intermediate container b85f3d12a43b
 ---> d1f91c3bb4bb
Step 5/5 : COPY index.html /opt
 ---> c47535b6da51
Successfully built c47535b6da51
Successfully tagged install-git:latest
[root@localhost suresh]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED         SIZE
install-git   latest    c47535b6da51   8 seconds ago   204MB
<none>        <none>    c90cbb6ca76e   4 hours ago     515MB
ubuntu        latest    c29284518f49   7 days ago      72.8MB
httpd         latest    bd29370f84ea   12 days ago     138MB
openjdk       8-jdk     d61c96e2d100   3 weeks ago     514MB
hello-world   latest    d1165f221234   4 months ago    13.3kB
[root@localhost suresh]# docker pas -a
unknown shorthand flag: 'a' in -a
See 'docker --help'.

Usage:  docker [OPTIONS] COMMAND

A self-sufficient runtime for containers

Options:
      --config string      Location of client config files (default "/root/.docker")
  -c, --context string     Name of the context to use to connect to the daemon (overrides DOCKER_HOST env var and default context set with "docker context use")
  -D, --debug              Enable debug mode
  -H, --host list          Daemon socket(s) to connect to
  -l, --log-level string   Set the logging level ("debug"|"info"|"warn"|"error"|"fatal") (default "info")
      --tls                Use TLS; implied by --tlsverify
      --tlscacert string   Trust certs signed only by this CA (default "/root/.docker/ca.pem")
      --tlscert string     Path to TLS certificate file (default "/root/.docker/cert.pem")
      --tlskey string      Path to TLS key file (default "/root/.docker/key.pem")
      --tlsverify          Use TLS and verify the remote
  -v, --version            Print version information and quit

Management Commands:
  app*        Docker App (Docker Inc., v0.9.1-beta3)
  builder     Manage builds
  buildx*     Build with BuildKit (Docker Inc., v0.5.1-docker)
  config      Manage Docker configs
  container   Manage containers
  context     Manage contexts
  image       Manage images
  manifest    Manage Docker image manifests and manifest lists
  network     Manage networks
  node        Manage Swarm nodes
  plugin      Manage plugins
  scan*       Docker Scan (Docker Inc., v0.8.0)
  secret      Manage Docker secrets
  service     Manage services
  stack       Manage Docker stacks
  swarm       Manage Swarm
  system      Manage Docker
  trust       Manage trust on Docker images
  volume      Manage volumes

Commands:
  attach      Attach local standard input, output, and error streams to a running container
  build       Build an image from a Dockerfile
  commit      Create a new image from a container's changes
  cp          Copy files/folders between a container and the local filesystem
  create      Create a new container
  diff        Inspect changes to files or directories on a container's filesystem
  events      Get real time events from the server
  exec        Run a command in a running container
  export      Export a container's filesystem as a tar archive
  history     Show the history of an image
  images      List images
  import      Import the contents from a tarball to create a filesystem image
  info        Display system-wide information
  inspect     Return low-level information on Docker objects
  kill        Kill one or more running containers
  load        Load an image from a tar archive or STDIN
  login       Log in to a Docker registry
  logout      Log out from a Docker registry
  logs        Fetch the logs of a container
  pause       Pause all processes within one or more containers
  port        List port mappings or a specific mapping for the container
  ps          List containers
  pull        Pull an image or a repository from a registry
  push        Push an image or a repository to a registry
  rename      Rename a container
  restart     Restart one or more containers
  rm          Remove one or more containers
  rmi         Remove one or more images
  run         Run a command in a new container
  save        Save one or more images to a tar archive (streamed to STDOUT by default)
  search      Search the Docker Hub for images
  start       Start one or more stopped containers
  stats       Display a live stream of container(s) resource usage statistics
  stop        Stop one or more running containers
  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
  top         Display the running processes of a container
  unpause     Unpause all processes within one or more containers
  update      Update configuration of one or more containers
  version     Show the Docker version information
  wait        Block until one or more containers stop, then print their exit codes

Run 'docker COMMAND --help' for more information on a command.

To get more help with docker, check out our guides at https://docs.docker.com/go/guides/

[root@localhost suresh]# docker ps -a
CONTAINER ID   IMAGE         COMMAND              CREATED       STATUS                   PORTS                                       NAMES
6cd3f50d4ed7   ubuntu        "/bin/bash"          5 hours ago   Up 5 hours               0.0.0.0:8083->8083/tcp, :::8083->8083/tcp   priceless_sanderson
d721ee29be3a   ubuntu        "/bin/bash"          5 hours ago   Created                                                              friendly_ellis
7320dd9b3370   ubuntu        "bash"               6 hours ago   Exited (0) 6 hours ago                                               server
7a5549815761   ubuntu        "bash"               6 hours ago   Created                                                              appserver
39c22cc1cbaf   httpd         "httpd-foreground"   6 hours ago   Up 6 hours               0.0.0.0:8080->80/tcp, :::8080->80/tcp       webserver
7bf8088b0a5f   httpd         "httpd-foreground"   6 hours ago   Up 6 hours               0.0.0.0:81->80/tcp, :::81->80/tcp           suspicious_poitras
317020ee19e1   httpd         "httpd-foreground"   6 hours ago   Up 6 hours               0.0.0.0:82->80/tcp, :::82->80/tcp           youthful_babbage
106e7c9b43b8   httpd         "httpd-foreground"   6 hours ago   Created                                                              suspicious_allen
99a9b3f7f56c   httpd         "httpd-foreground"   6 hours ago   Up 6 hours               0.0.0.0:80->80/tcp, :::80->80/tcp           sad_roentgen
e57a2bfc474e   httpd         "httpd-foreground"   6 hours ago   Up 6 hours               80/tcp                                      distracted_torvalds
d4a3a68b47a9   hello-world   "/hello"             7 hours ago   Exited (0) 7 hours ago                                               hungry_satoshi
75cafc0d6fee   ubuntu        "bash"               9 hours ago   Up 6 hours                                                           dreamy_northcutt
[root@localhost suresh]# docket build -t sureshramisetti/docker_repo .
bash: docket: command not found...
[root@localhost suresh]# docker build -t sureshramisetti/docker_repo .
Sending build context to Docker daemon   2.56kB
Step 1/5 : FROM ubuntu
 ---> c29284518f49
Step 2/5 : MAINTAINER Rajesh Kumar <sureshramisetti.br@gmail.com?
 ---> Using cache
 ---> 629e1f351472
Step 3/5 : RUN apt-get update
 ---> Using cache
 ---> 4ad084e71cbd
Step 4/5 : RUN apt-get install git -y
 ---> Using cache
 ---> d1f91c3bb4bb
Step 5/5 : COPY index.html /opt
 ---> Using cache
 ---> c47535b6da51
Successfully built c47535b6da51
Successfully tagged sureshramisetti/docker_repo:latest
[root@localhost suresh]# docker run sureshramisetti/docker_repo
[root@localhost suresh]# docker push sureshramisetti/docker_repo
Using default tag: latest
The push refers to repository [docker.io/sureshramisetti/docker_repo]
a1aab20d2ca6: Preparing
52df2cabd5ec: Preparing
35fd68bb561c: Preparing
a70daca533d0: Preparing
denied: requested access to the resource is denied
[root@localhost suresh]# ^C
[root@localhost suresh]# docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: sureshramisetti
Password:
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded
[root@localhost suresh]# docker push sureshramisetti/docker_repo
Using default tag: latest
The push refers to repository [docker.io/sureshramisetti/docker_repo]
a1aab20d2ca6: Pushed
52df2cabd5ec: Pushed
35fd68bb561c: Pushed
a70daca533d0: Mounted from library/ubuntu
latest: digest: sha256:16ea152e7ae341e7f3c5b18f6ceeb140a4415f0dc31648d20929b41fe0e8be04 size: 1160
[root@localhost suresh]# history
    1  ifconfig
    2  sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    3  docker ps -a
    4  sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    5  sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
    6  sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
    7  sudo yum install -y docker-ce
    8  docker ps -a
    9  docker start 75cafc0d6fee
   10  docker ps -a
   11  docker kill 82da9c001d75
   12  docker start 82da9c001d75
   13  docker kill 82da9c001d75
   14  docker rm 82da9c001d75
   15  docker ps -a
   16  docker start 79e0ca51ae30
   17  docker rm 79e0ca51ae30
   18  docker ps -a
   19  docker pull https
   20  docker pull httpd
   21  docker ps -a
   22  docker run -d httpd
   23  docker ps -a
   24  docker exec -it 75cafc0d6fee /bin/bash
   25  docker ps -a
   26  docker run -d -p 80:80 httpd
   27  docker ps -a
   28  docker attach 75cafc0d6fee
   29  ls
   30  history
   31  docker ps -a
   32   docker run -d -p 80:80 httpd
   33  docker run -d -p 81:80 httpddocker run -d -p 81:80 httpd
   34  docker run -d -p 82:80 httpd
   35  docker run -d -p 81:80
   36  docker run -d -p 81:80 https
   37  docker run -d -p 81:80 httpd
   38  docker ps -a
   39  history
   40  docker ps -a
   41  docker attach 75cafc0d6fee
   42  docker attach 75cafc0d6fee
   43  ls
   44  bash: docker: command not found
   45  docker images|grep httpd
   46  docker ps -a
   47  docker run -d -p 8080:80 --name webserver httpd
   48  docker ps -a
   49  apt update
   50  curl -O https://raw.githubusercontent.com/spinnaker/halyard/master/install/debian/InstallHalyard.sh
   51  docker ps -a
   52  docker attach 75cafc0d6fee
   53  git -version
   54  apt get install apache2
   55  sudo bash InstallHalyard.shdocker run -it ubuntu:latest /bin/bash
   56  apt-get install apache2
   57  apt-get install apache2
   58  apt-get install apache2
   59  docker attach 75cafc0d6fee
   60  docker ps -a
   61  wget localhost:8080
   62  docker run -d -p 8080:80 --name webserver ubuntu
   63  docker run -d -p 8080:80 --name appserver ubuntu
   64  docker run -d -p 8081:80 --name appserver ubuntu
   65  docker run -d -p 8081:80 --name server ubuntu
   66  docker ps -a
   67  docker attach 75cafc0d6fee
   68  git --version
   69  apcahe2 -v
   70  docker ps -a
   71  docker version
   72  docker run -it -p 8080:8080 ubuntu /bin/bash
   73  docker run -it -p 8083:8083 ubuntu /bin/bash
   74  apt-get install openjdk-8-jdk
   75  apt update
   76  sudo apt openjdk-8-jdk
   77  docker run openjdk-8-jdk
   78  dcoker run --help
   79  docker run --help
   80  docker attach 75cafc0d6fee
   81  docker ps -a
   82  sudo vim Dockerfile
   83  FROM ubuntu
   84  MAINTAINER Rajesh Kumar << rajesh@scmgalaxy.com>>
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update
RUN apt-get -y install tzdata
RUN apt-get update && apt-get install git -y && apt-get install -yq apache2

   85  sudo docker build -t workdir-demo
   86  docker build -t workdir-demo
   87  mkdir suresh
   88  cd suresh/
   89  vi dockerfile
   90  vi dockerfile
   91  cat dockerfile
   92  vi dockerfile
   93  touch index.html
   94  docker build -t sureshramisetti/docker_repo .
   95  vi dockerfile
   96  FROM ubuntu
   97  MAINTAINER Rajesh Kumar <rajesh@devopsschool.com?
   98  RUN apt-get update
   99  RUN apt-get install git -y
  100  clear
  101  touch index.html
  102  docker build -t install-git .
  103  docker images
  104  docker pas -a
  105  docker ps -a
  106  docket build -t sureshramisetti/docker_repo .
  107  docker build -t sureshramisetti/docker_repo .
  108  docker run sureshramisetti/docker_repo
  109  docker push sureshramisetti/docker_repo
  110  docker login
  111  docker push sureshramisetti/docker_repo
  112  history
[root@localhost suresh]#
https://hub.docker.com/repositories

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