Docker Series Part-2

Hello readers, welcome to Docker Series Part-2.

Hope you all enjoy the previous article Docker Series Part-1 (Introduction to Docker)
if anyone of you missed, please check that article to get an idea about Docker.

In this article we are going to discuss about most commonly used docker commands.

Docker Commands

• To pull an image from a registry

           # docker pull image_name

• The above command pull latest version of the image from the docker hub registry

• Docker Hub is a registry for docker images which contains many pre-build images that we can pull and try without needing to define and configure our own.

• To pull specific version of the image we can use tag

• Example: To pull 'mysql' image with 8.0 version from the docker hub.

          # docker pull mysql:8.0

• To list the docker images

          # docker images

• To upload a docker image into docker hub

         # docker push image_name 
  

• To search for a docker image

         # docker search image_name
  

• To delete all images that are not attached to containers

         # docker system prune -a 
  

• The above command will remove the following:

  • all stopped containers
  • all networks not used by at least one container
  • all images without at least one container associated to them
  • all build cache

• To build an image from a customized container

        # docker commit container_name/container_id new_image_name 
  

• To create an image from docker file

       # docker build -t    new_image_name 
  

• To delete a docker image from docker host

       # docker rmi image_name/image_id 
  

• To see the list of all running containers

    # docker  container  ls 
  

• To see the list of running and stopped containers

    # docker   ps -a 
  

• To start a container

    # docker  start  container_name/container_id 
  

• To stop a running container

   # docker stop   container_name/container_id 
  

• To restart a running container

   # docker restart container_name/container_id 
  

• To create a container from a docker image

    #  docker run image_name   
  

• To delete a stopped container

   # docker  rm  container_name/container_id
  

• To delete a running container

    # docker  rm  -f  container_name/container id 
  

• To see the logs generated by a container

    # docker logs container_name/container_id 
  

• To see the ports used by a container

    # docker port container_name/container_id