“docker update” command dynamically updates container configuration.Using this command we can restrict the usage of too many resources by a container.Example : docker update –kernel-memory 50M ad5f8182d65e –> Update kernel memory while the container is running

docker pause pauses a running container. docker unpause changes a paused container to RUNNING state

docker stop command stops the container ie, changes status from RUNNING to EXITED. The client can restart the docker container if they want. docker kill command kills the docker container. The image can be removed from the docker after kill.

If we want to pause the processes running inside the container, we can use the “docker pause” command. To unpause is, use ” docker unpause “

Q1. Explain What is Docker Container with image? A container which contains our image with root file system, 1 PID, 1 NW, 1 MNT, 1 USER. Q2. What is the difference between docker stop and docker kill? docker stop and docker kill doing the same thing only the internal process have difference. Both stops a running container to an exit state. docker create –name vin6 httpddocker start vin6docker psdocker stop vin6docker ps -adocker start vin6docker pause vin6docker ps -adocker unpause

The docker pause command suspends all processes in the specified containers. We can apply this command , if the container is in running stateThe docker unpause command un-suspends all processes in the specified containers. We can apply this command , if the container is in pause state docker pause <container name> docker unpause <container name>

Q1. Explain What is Docker Container with image? Docker container is an independent application that is light weight . And which will be having 1 Root FS, 1 MNT NS , 1Networks NS , and 1 PID NS .Docker images are files that can be loaded into the container. The docker image which can be loaded into a container only if the Root File System of docker container is compatible with the image. Q2. What is the difference between docker

Docker Stop – allows the docker contianer to terminate the process gracefully. This will also internally call KILL method if the STOP methods didnot respond with in limited time period Docker Kill – will terminate the docker container abruptly.It will leads to Forcible exist.

Docker kill and stop are two command used to terminate the container execution.docker kill – Used to forcefully terminate execution of container, which does not attempt to shut down the process gracefully.docker stop – Used to terminate execution safely and gracefully. docker kill [OPTIONS] CONTAINER [CONTAINER…] docker stop [OPTIONS] CONTAINER [CONTAINER…]

Containerization is the grouping together of software components with all it’s necessary dependent elements, like libraries, frameworks, and other dependencies so the software execution isolate in their own environment.Such isolated user spaces are called “Containers”, docker engine is a is such a a containerization platform, that packages application and its dependencies together in the form of a docker container and run in an isolated environment.Advantages of Container technologies – Lightweight, independent, easy to mange and performance efficient.

Q1. Explain What is Docker Container with image? Docker images act as a set of instructions to build a Docker container, like a template. Docker is used to create, run and deploy applications in containers. Images can exist without containers, whereas a container needs to run an image to exist. A Docker container is a virtualized runtime environment used in application development. It is used to create, run and deploy applications that are isolated from the underlying hardware. Q2. What

Docker Puase: Just puasing all processes inside the container by generating a SIGSTOP signal. Process state will goes to suspended. Docker Unpuase: Resuming the container porcesses.

Pause command suspends all process in the container while unpause command un-suspends all process.

Docker image: Docker image is a collection of file system (Root FS, User FS and App FS). Use “docker images” command to see the docker images Docker Container: Docker container is the runnable instance of docker image. Docker container contains 1 ROOT FS, 1 PID, 1 NET and 1 USER and attach ROOT FS, PID and NET to user. One copy of docker image get attached to each container Use “docker ps” command to see all docker containers with status

Q> What is the difference between docker pause and docker unpause?docker pause command suspends all processes in the specified containers and unpause will resume all suspended processes within containers

One can stop and kill a running container. Docker stop will only stop the container gracefully. Docker kill will immediately kills all the process. There is a difference in exit code..

Docker stop command exits the container with exit code 0 while docker kill command exit the container with exit code 137.

Docker container is an isolated software runtime environment .A docker container has the following features: It is independent Has its own ROOT filesystem ,Network and PID It is lightweight

Docker stop: Graceful exit. Apps can catch the signal(SIGTERM) and ignore/handle it. Normally APPS will do some cleanup activities by handling it. Docker Kill: Forceful exit. Generate SIGKILL signal.Apps can’t catch or ignore.