Q.What is the differenece between docker stop and docker kill?docker stop attempts to trigger a graceful shutdown by sending the signal SIGTERM, whereas kill just kills the process by default

Q1. Explain What is Docker Container with image? Docker container image is the lightweight independent runtime app run time environment.  As said, it contains everything needed to run application. Container is the collection of an user attached to 1 root FS 1 Network & 1 PID. Creation of user session, root file system, network, pid etc will be done by kernel using namespaces. Docker software will directly talk to kernel for this purpose inorder to bypass OS restriction(PC architecture).

We can successfully execute the command docket pause only if the docker container is in running state. We can successfully execute the command docket unpause only if the docker container is in paused state. I think internally its deallocating (during pause) and reallocating (during pause) the resources.

Docker pause is used to pause all the processes in the container, but the memory will be still used. Docker unpause will resume the processes.

Docker Container: A running instance of docker container image. Docker Container Image: It is a lightweight, standalone, executable package of software that includes everything needed to run an application: code, runtime, system tools, system libraries and settings. Its basically a collection of file systems. It will have a ROOT FS, USER FS and one or more APP FS. Can use single container image to run multiple containers.

Q1. Explain What is Docker Container with image?Docker container image is a lightweight, standalone, application run time environment and from one docker image we can get multiple container.

Pause will set the container state to Paused and all the processes in the container will be suspended. Unpause will unsuspend the process and removes the unpaused state

Docker pause : suspends all the running process in the specified containersDocker unpause : un suspends all the running process

Docker kill will stop all the processes in a container forcefully but docker stop will stop the processes gently.

Docker image is a snapshot which contians our code and dependent files. Docker containier is a instance of a doceker image, we can have mulitple contianers for a docker Imager

3. What is the difference between docker pause and docker unpause? Pause and Unpause are the basic commands in docker.1. pause Pause all processes within one or more containers Eg: docker pause abhi abhi1 2. unpause Unpause all processes within one or more containers Eg: docker unpause abhi abhi1

Docker stop : Stop a running container (send SIGTERM, and then SIGKILL after grace period). Will try to stop it gracefully.If process is not stopped gracefully it will send a kill command after a specific grace period. Docker kill : Kill a running container (send SIGKILL, or specified signal). This will stop the main entrypoint process/program abruptly. Any pending file system changes that the main process still had in memory will be lost, so the file system might end up

docker stop stops the container gracefully where as docker kill terminates the process immediately. docker stop showing status as “Exited (0)” and docker kill showing status as “Exited (137)”

The commands docker pause <container_name> and docker unpause <container_name> are used to temporarily suspend or pause the running container. While running the docker pause command the memory will be there, but the running container will be stopped and while running the docker unpause command the paused container will resume and start with the pre-existing memory.

docker pause suspend all process in the container. docker unpause unsuspend all process in the container

A container which contains our image with root file system, 1 PID, 1 NW, 1 USER.

Docker container is a lightweight execution environment where a user can run their applications.These are working application created from docker images and a user can start an instance of the application. All the necessary resource and packages to run an application is availble in the docker image. A container created will have all the root file system that of a linux environment f the image is of linux architecure. for eg: Below is the container started from an httpd docker

Q1. Explain what is Docker Container with image? Light weight mechanism of isolating running process defined by specific images with resources like root filesystem, user and network.

Docker stop will gracefully stop the container. It stops the processes before killing the container Docker kill will kill the container immediately