docker pull – used to pull images from the docker repository(hub.docker.com) docker run – used to create a container from an image docker ps – used to list the running containers docker ps -a – used to show all the running and exited containers docker exec – used to access the running container docker stop – stops a running container docker kill – kills the container by stopping its execution immediately. docker commit – creates a new image of an

The difference between ENTRYPOINT and CMD is that, if you try to specify default arguments in the docker run command, it will not ignore the ENTRYPOINT arguments. If you have used the exec form of the ENTRYPOINT instruction, you can also set additional parameters with the help of CMD command.

 FROM command allows you to create a base image such as an operating system, a programming language, etc.  RUN instruction is used to run specified commands. You can use several RUN instructions to run different commands. CMD: If you want to run a docker container by specifying a default command that gets executed for all the containers of that image by default, you can use a CMD command. ENTRY POINT: It starts the process we want to run after starting the

Docker exec executes a new command / creates a new process in the container’s environment, while docker attach just connects the standard input/output/error of the main process(with PID 1) inside the container to the corresponding standard input/output/error of the current terminal(the terminal you are using to run the command).

A docker STOP command issues a SIGTERM signal to the main process running within the container while the docker KILL command issues a SIGKILL signal to the process.

docker pause – will pause the running container and unpause will start the pause container.docker unpause- will resume the paused containers.

Docker client: it is used to communicate with the docker server (dockerd) Docker server: it contains dockerd and containerDocker image: A Docker image is a template written in YAML that contains instructions for the Docker container.Docker registry: The Docker registry is where you would host various types of images and where you would distribute the images from.Docker container: Docker container is an executable package of applications and its dependencies bundled together.