Docker Operations

The commands written below are examples, all options, --<option> or -<o>, are optional.

• Build

  docker build </path/to/context/folder> -t <my-docker-image>:<tag-version>
  

• Start a container from an image

  docker run -dp <host_port>:<container_port> <my-docker-image>:<tag-version> -n <container-name>
  

  Note:

  • -d: Run in detached mode. You won’t be presented with the container stdout in the terminal.
  • -n: If not specified, Docker will randomly generate one.

• Remote into a running container

  docker exec -it <host_port>:<container_port> <my-docker-image>:<tag-version> --tty --stdin -- /bin/bash
  

  Note:

  • For some minimal containers, the entrypoint should be /bin/sh
  • --it: Run in interactive mode

• List

  • Images

    docker image ls
    

  • Containers

    docker container ls
    

• Stop

  docker stop <container-name>
  

• Delete

  • Images

    docker rm image-tag:tag-version # e.g. nginx:latest
    

  • Containers

    docker rm container-name
    

  • Prune

    docker prune -a
    

    Note: -a option will prune images not being used by a container (stopped also qualifies). By default, it deletes images that are not tagged.