Tool cheatsheet

Docker 29 Cheatsheet

Build, run and clean up containers and images, and manage multi-container apps with Docker Compose.

Getting started

Check the Docker version — Print the client and server versions.
Show system information — Show containers, images, storage driver and other details of the Docker daemon.
Test your installation — Run a tiny container that prints a message and exits.
Log in to a registry — Sign in to Docker Hub, or to another registry by passing its address.

Build an image — Build an image from the Dockerfile in the current directory and tag it.
List images — Show the images stored locally.
Pull an image — Download an image from a registry.
Tag an image — Give an existing image another name, for example before pushing.
Push an image — Upload an image to a registry.
Remove an image — Delete a local image. Docker refuses if a container still uses it.

Run a container in the background — Start a named container and publish host port 8080 to container port 80.
Run a throwaway shell with your code mounted — Start a temporary container, mount the current folder and delete the container when you exit.
List running containers — Show the containers that are currently running.
List all containers — Include stopped containers.
Stop a container — Ask a container to stop gracefully.
Start a stopped container — Start a container that already exists.
Restart a container — Stop and start a container.
Remove a container — Delete a stopped container. Add -f to remove a running one.
Open a shell in a running container — Run an interactive shell inside a container. Use bash if the image has it.
Follow container logs — Stream the last 100 lines and new output.
Inspect a container — Show its full configuration and state as JSON.
Watch resource usage — Live CPU, memory and network use of running containers.
Copy a file out of a container — Copy a file from a container to the current folder.

Create a volume — Create a named volume for data that should outlive containers.
List volumes — List the volumes on this Docker host.
Remove a volume — Delete a volume that no container uses.
Create a network — Create a user-defined network where containers can reach each other by name.
List networks — List the networks on this Docker host.

Start the services — Build if needed and start everything in compose.yaml in the background.
Stop and remove the services — Stop and remove the containers and networks. Volumes are kept.
Stop and remove services and volumes — Also delete the named volumes declared in the file.
List the services — Show the containers of the project.
Follow a service's logs — Stream the logs of one service.
Rebuild the images — Build the images of services that have a build section.
Open a shell in a service — Run a shell inside a running service container.
Check the merged config — Validate the file and print it with variables and overrides applied.

See how much space Docker uses — Show space used by images, containers, volumes and build cache.
Remove stopped containers — Delete every stopped container.
Remove dangling images — Delete untagged images that nothing uses.
Remove unused data — Delete stopped containers, unused networks, dangling images and build cache.

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