Docker Cheatsheet

Docker commands that developers should know

Docker is an open platform for developing, shipping, and running applications. Docker enables you to separate your applications from your infrastructure so you can deliver software quickly. With Docker, you can manage your infrastructure in the same ways you manage your applications. By taking advantage of Docker’s methodologies for shipping, testing, and deploying code quickly, you can significantly reduce the delay between writing code and running it in production. In this post, I will mention docker commands which we need or most of the use-cases.

Lifecycle Commands

• Create a container (without starting it):

docker create [IMAGE]

• Rename an existing container

docker rename [CONTAINER_NAME] [NEW_CONTAINER_NAME]

• Run a command in a new container

docker run [IMAGE] [COMMAND]

• Remove container after it exits

docker run --rm [IMAGE]

• Start a container and keep it running

docker run -td [IMAGE]

• Start a container and creates an interactive bash shell in the container

docker run -it [IMAGE]

• Create, Start, and run a command inside the container and remove the container after executing the command.

docker run -it-rm [IMAGE]

• Execute command inside already running container.

docker exec -it [container]

• Delete a container (if it is not running)

docker rm [CONTAINER]

• Update the configuration of the container

docker update [CONTAINER]

Starting and Stopping Containers

• Start Container

docker start [CONTAINER]

• Stop running Container

docker stop [CONTAINER]

• Stop running Container and start it again

docker restart [CONTAINER]

• Pause processes in a running container

docker pause [CONTAINER]

• Unpause processes in a running container

docker unpause [CONTAINER]

• Block a container until others stop

docker wait [CONTAINER]

• Kill a container by sending a SIGKILL to a running container

docker kill [CONTAINER]

• Attach local standard input, output, and error streams to a running container

docker attach [CONTAINER]

Docker Image Commands

• Create an image from a Dockerfile

docker build [URL/FILE]

• Create an image from a Dockerfile with Tags

docker build -t <tag> [URL/FILE]

• Pull an image from a registry

docker pull [IMAGE]

• Push an image to a registry

docker push [IMAGE]

• Create an image from a tarball

docker import [URL/FILE]

• Create an image from a container

docker commit [CONTAINER] [NEW_IMAGE_NAME]

• Remove an image

docker rmi [IMAGE]

• Load an image from a tar archive or stdin

docker load [TAR_FILE/STDIN_FILE]

• Save an image to a tar archive

docker save [IMAGE] > [TAR_FILE]

Docker Container And Image Information

• List running containers

docker ps

• Lists both running containers and ones that have stopped

docker ps -a

• List the logs from a running container

docker logs [CONTAINER]

• List low-level information on Docker objects

docker inspect [OBJECT_NAME/ID]

• List real-time events from a container

docker events [CONTAINER]

• Show port mapping for a container

docker port [CONTAINER]

• Show running processes in a container

docker top [CONTAINER]

• Show live resource usage statistics of container

docker stats [CONTAINER]

• Show changes to files (or directories) on a filesystem

docker diff [CONTAINER]

• List all images that are locally stored with the docker engine

docker [image] ls

• Show the history of an image

docker history [IMAGE]

Network Commands

• List networks

docker network ls

• Remove one or more networks

docker network rm [NETWORK]

• Show information on one or more networks

docker network inspect [NETWORK]

• Connects a container to a network

docker network connect [NETWORK] [CONTAINER]

• Disconnect a container from a network

docker network disconnect [NETWORK] [CONTAINER]

Thank you for reading

Hope you find these resources useful.