docker build -t app .: Build an image from Dockerfile. | docker images: List local images. | docker pull : Pull an image from a registry.

docker run -it sh: Run interactively with a shell. | docker run -d -p 3000:3000 : Run in background with port mapping. | docker ps: List running containers.

docker volume ls: List volumes. | docker run -v data:/app/data : Mount a named volume. | docker cp :/app/log.txt .: Copy file from container.

docker network ls: List networks. | docker network create devnet: Create a network. | docker run --network devnet : Attach a container to a network.

Docker Cheatsheet

Q: Compose

Run multi-container apps with one command. docker compose up -d # stop

Q: Cleanup

Keep your local environment lean. docker system prune -f # remove unused images only

Build, run, and ship containers faster with the Docker commands you actually use.

Images

Key / Code	Description
docker build -t app .	Build an image from Dockerfile.
docker images	List local images.
docker pull <image>	Pull an image from a registry.
docker rmi <image>	Remove an image.

Containers

Key / Code	Description
docker run -it <image> sh	Run interactively with a shell.
docker run -d -p 3000:3000 <image>	Run in background with port mapping.
docker ps	List running containers.
docker ps -a	List all containers.
docker stop <id>	Stop a container.
docker rm <id>	Remove a container.

Volumes & Files

Key / Code	Description
docker volume ls	List volumes.
docker run -v data:/app/data <image>	Mount a named volume.
docker cp <id>:/app/log.txt .	Copy file from container.

Networking

Key / Code	Description
docker network ls	List networks.
docker network create devnet	Create a network.
docker run --network devnet <image>	Attach a container to a network.

Compose

Run multi-container apps with one command.

docker compose up -d
# stop
docker compose down

Cleanup

Keep your local environment lean.

docker system prune -f
# remove unused images only
docker image prune -f

Knowledge is power.