Docker Commands CMDsheet

Build Commands

docker build	Builds an image from a Dockerfile in the current directory
docker build <remote-url>	Builds an image from a remote GIT repository
docker build -t imagename/tag	Builds and tags an image for easier tracking

Builds an image via a Dockerfile that is passed through STDIN

docker build -t image:1.0 -<<EOFFROM busyboxRUN echo “hello world”EOF

Run Commands

docker run (options) image (command) (arg...)

--detach , -d	Runs a container in the background and prints the container ID
--env , -e	Sets environment variables
--hostname , -h	Sets a hostname to a container
--label , -l	Creates a meta data label for a container
--name	Assigns a name to a container
--network	Connects a container to a network
--rm	Removes container when it stops
--read-only	Sets the container filesystem as read-only
--workdir , -w	Sets a working directory in a container

Copy Command

docker cp :/file/path/within/container /host/path/to/copy/files/to	Copy a file from container to localhost
docker cp /host/path/to/copy/files/from :/file/path/within/container	Copy a file from localhost to container

Clean Up Commands

docker image prune	Clears an unused image
docker image prune -a	Clears all images that are not being used by containers
docker system prune	Removes all stopped containers, all networks not used by containers, all dangling images, and all build cache
docker image rm image	Removes an image
docker rm container	Removes a running container
docker swarm leave	Leaves a swarm
docker stack rm stackname	Removes a swarm
docker volume rm $(docker volume ls -f dangling=true -q)	Removes all dangling volumes
docker rm $(docker ps -a -q)	Removes all stopped containers
docker kill $(docker ps -q)	Stops all running containers

Container Interaction Commands

docker start container	Starts a new container
docker stop container	Stops a container
docker pause container	Pauses a container
docker unpause container	Unpauses a container
docker restart container	Restarts a container
docker wait container	Blocks a container
docker export container	Exports container contents to a tar archive
docker attach container	Attaches to a running container
docker wait container	Waits until the container is terminated and shows the exit code
docker commit -m "commit message" -a "author" container username/image_name:tag	Saves a running container as an image
docker logs -ft container	Follows container logs
docker exec -ti container script.sh	Runs a command in a container
docker commit container image	Creates a new image from a container
docker create image	Creates a new container from an image

Container Inspection Commands

docker -ps -a	Lists all containers
docker diff container	Inspects changes to directories and files in the container filesystem
docker top container	Shows all running processes in an existing container
docker inspect container	Displays low-level information about a container
docker logs container	Gathers the logs for a container
docker stats container	Shows container resource usage statistics

Manage Images Commands

docker image ls	Lists images
docker image rm mysql	Removes an image
docker tag image tag	Tags an image
docker history image	Displays the image history
docker inspect image	Displays low-level information about an image

Registry Commands

docker login	Logs in to a registry
docker logout	Logs out from a registry
docker pull mysql	Pulls an image from a registry
docker push repo/rhel-httpd:latest	Pushes an image to a registry
docker search term	Searches Docker Hub for images with the specified term

Service Commands

docker service ls	Lists all services running in a swarm
docker stack services stackname	Lists all running services
docker service ps servicename	Lists the tasks of a service
docker service update servicename	Updates a service
docker service create image	Creates a new service
docker service scale servicename=10	Scales one or more replicated services
docker service logs stackname servicename	Lists all service logs

Network Commands

docker network create networkname	Creates a new network
docker network rm networkname	Removes a specified network
docker network ls	Lists all networks
docker network connect networkname container	Connects a container to a network
docker network disconnect networkname container	Disconnects a container from a network
docker network inspect networkname	Displays detailed information about a network