Docker – Lab – Day1-3 – Sandeep
- Create Ec2 ubuntu instance (freeetire) in AWS
- Copy the permissions keys to local
- Open putty key load and generate private key
- Open Putty and browse the private key and login to the ubuntu instance
- Auto logged in with no credentials
- Install docker
- https://docs.docker.com/engine/install/ubuntu/
- sudo apt install apache2
- sudo apt-get install git
- Install Ansible:
sudo apt-add-repository ppa:ansible/ansible
Log into the Ubuntu Server that will host Ansible
Install the necessary repository with the command sudo apt-add-repository ppa:ansible/ansible.
Update apt with the command sudo apt-get update.
Install Ansible with the command sudo apt-get install ansible -y.
| ubuntu@ip-172-31-36-167:~$ docker -v Docker version 20.10.6, build 370c289 ubuntu@ip-172-31-36-167:~$ which docker /usr/bin/docker ubuntu@ip-172-31-36-167:~$ which dockerd /usr/bin/dockerd ubuntu@ip-172-31-36-167:~$ which containerd /usr/bin/containerd sudo apt install apache2 ubuntu@ip-172-31-36-167:~$ sudo apt-get install git Reading package lists… Done Building dependency tree Reading state information… Done git is already the newest version (1:2.25.1-1ubuntu3.1). 0 upgraded, 0 newly installed, 0 to remove and 83 not upgraded. git version 2.25.1 docker start d2284fa3b876 docker stop d2284fa3b876 docker start d2284fa3b876 docker restart d2284fa3b876 docker pause d2284fa3b876 docker unpause d2284fa3b876 docker kill d2284fa3b876 docker rm d2284fa3b876 Docker ps -a Docker images Df -kh overlay 7.7G 2.8G 5.0G 36% /var/lib/docker/overlay2/aa0adb35162df4589704c14803ba465a45ab493dccaead7d3cbc3b827ebec578/merged ubuntu@ip-172-31-36-167:~$ sudo docker run -it -d ubuntu 4a6368fbfdf3134efa6c1b53c399d7e0a786fa5197ef2a4986ca1f81d52a46b9 ubuntu@ip-172-31-36-167:~$ docker run -it ubuntu:latest /bin/bash root@3495aa19c4ad:/# ubuntu@ip-172-31-36-167:~$ docker run -itd ubuntu:latest /bin/bash 52405e2c22b4f9526bbfd3b598d92055d20a1030d13752c476494fb482e56009 ubuntu@ip-172-31-36-167:~$ docker start e220e9b0e897 ubuntu@ip-172-31-36-167:~$ docker attach e220e9b0e897 (ubuntu conatiner) root@e220e9b0e897:/# pwd / root@e220e9b0e897:/# ls bin boot dev etc home lib lib32 lib64 libx32 media mnt opt proc root run sbin srv sys tmp usr var Exit (command) : pushes you out of container and stops the container ctrl+pq (shortcut) : pushes you out of container and let the container continue running ubuntu@ip-172-31-36-167:~$ mkdir dock-image ubuntu@ip-172-31-36-167:~$ cd dock-image ubuntu@ip-172-31-36-167:~/dock-image$ vi dockerfile ubuntu@ip-172-31-36-167:~/dock-image$ touch index.html ubuntu@ip-172-31-36-167:~/dock-image$ pwd /home/ubuntu/dock-image ubuntu@ip-172-31-36-167:~/dock-image$ docker build -t ub-up-git . Sending build context to Docker daemon 2.56kB Step 1/5 : FROM ubuntu —> c29284518f49 Step 2/5 : MAINTAINER Sandeep Draksharapu <thesdandy96@gmail.com> —> Running in ed426586cda4 Removing intermediate container ed426586cda4 —> 6db668bbb9d4 Step 3/5 : RUN apt-get update —> Running in 63a946079b3a 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/multiverse amd64 Packages [177 kB] ubuntu@ip-172-31-36-167:~/dock-image$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE ub-up-git latest a78f67cafcec 23 seconds ago 204MB ubuntu@ip-172-31-36-167:~$ 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: thesandy96 Password: WARNING! Your password will be stored unencrypted in /home/ubuntu/.docker/config.json. Configure a credential helper to remove this warning. See https://docs.docker.com/engine/reference/commandline/login/#credentials-store Login Succeeded ubuntu@ip-172-31-36-167:~/dock-image$ docker tag ub-up-git thesandy96/dockerlab ubuntu@ip-172-31-36-167:~/dock-image$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE ub-up-git latest a78f67cafcec 2 minutes ago 204MB thesandy96/dockerlab latest a78f67cafcec 2 minutes ago 204MB ubuntu@ip-172-31-36-167:~/dock-image$ docker tag ub-up-git:latest thesandy96/dockerlab:myubuntuimage ubuntu@ip-172-31-36-167:~/dock-image$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE thesandy96/dockerlab latest a78f67cafcec 4 minutes ago 204MB thesandy96/dockerlab myubuntuimage a78f67cafcec 4 minutes ago 204MB ub-up-git latest a78f67cafcec 4 minutes ago 204MB ubuntu@ip-172-31-36-167:~$ docker push thesandy96/dockerlab:myubuntuimage The push refers to repository [docker.io/thesandy96/dockerlab] 77a90f426ac1: Pushed 181a340af0cd: Pushed f51af2ec0c1f: Pushed a70daca533d0: Mounted from library/ubuntu ubuntu@ip-172-31-36-167:~$ docker rmi thesandy96/dockerlab Untagged: thesandy96/dockerlab:latest Docker rm 4a6368fbfdf3 ubuntu@ip-172-31-36-167:~$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE ub-up-git latest 8c689035cb0f 24 minutes ago 204MB thesandy96/dockerlab latest 8c689035cb0f 24 minutes ago 204MB thesandy96/dockerlab myubuntuimage 8c689035cb0f 24 minutes ago 204MB ubuntu@ip-172-31-36-167:~$ docker exec 4a6368fbfdf3 ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 06:44 pts/0 00:00:00 bash root 15 0 0 06:46 ? 00:00:00 ps -ef ubuntu@ip-172-31-36-167:~$ docker exec 4a6368fbfdf3 df -kh Filesystem Size Used Avail Use% Mounted on overlay 7.7G 3.3G 4.4G 43% / tmpfs 64M 0 64M 0% /dev tmpfs 489M 0 489M 0% /sys/fs/cgroup shm 64M 0 64M 0% /dev/shm /dev/root 7.7G 3.3G 4.4G 43% /etc/hosts tmpfs 489M 0 489M 0% /proc/acpi tmpfs 489M 0 489M 0% /proc/scsi tmpfs 489M 0 489M 0% /sys/firmware ubuntu@ip-172-31-36-167:~$ docker exec -it 4a6368fbfdf3 /bin/bash root@4a6368fbfdf3:/# pwd / |