Docker

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Created: June 7, 2018 / Updated: July 24, 2025 / Status: in progress / 2 min read (~358 words)
devops docker

  • Run a swarm example on multiple machines/VMs

  • Image: An executable package (code, runtime, libraries, etc.)
  • Container: An runtime instance of an image
  • Repository: Collection of images
  • Registry: Collection of repositories
  • Task: A single container running in a service

  • Stack: A group of interrelated services that share dependencies

  • docker swarm init

docker
docker container --help

docker --version
docker version
docker info

docker run hello-world

docker image ls

docker container ls
docker container ls --all
docker container ls -aq

docker build -t friendlyhello . # Create image using this directory's Dockerfile
docker run -p 4000:80 friendlyhello # Run "friendlyname" mapping port 4000 to 80
docker run -d -p 4000:80 friendlyhello # Same thing, but in detached mode
docker container ls # List all running containers
docker container ls -a # List all containers, even those not running
docker container stop # Gracefully stop the specified container
docker container kill # Force shutdown of the specified container
docker container rm # Remove specified container from this machine
docker container rm $(docker container ls -a -q) # Remove all containers docker image ls -a # List all images on this machine docker image rm # Remove specified image from this machine docker image rm $(docker image ls -a -q) # Remove all images from this machine
docker login # Log in this CLI session using your Docker credentials
docker tag username/repository:tag # Tag for upload to registry
docker push username/repository:tag # Upload tagged image to registry
docker run username/repository:tag # Run image from a registry

docker stack ls # List stacks or apps
docker stack deploy -c # Run the specified Compose file
docker service ls # List running services associated with an app
docker service ps # List tasks associated with an app
docker inspect # Inspect task or container
docker container ls -q # List container IDs
docker stack rm # Tear down an application
docker swarm leave --force # Take down a single node swarm from the manager