Docker Commands Cheat Sheet

Images

• Build an image from a Dockerfile:

  docker build -t <image_name> .

• List local images:

  docker images

• Delete an image:

  docker rmi <image_name>

• Remove all unused images:

  docker image prune

Containers

• Create and run a container from an image:

  docker run --name <container_name> <image_name>

• Run a container in the background:

  docker run -d <image_name>

• Start or stop an existing container:

  docker start|stop <container_name>

• Remove a stopped container:

  docker rm <container_name>

• Open a shell inside a running container:

  docker exec -it <container_name> sh

• Fetch and follow the logs of a container:

  docker logs -f <container_name>

General Commands

• Start the Docker daemon:

  docker -d

• Display system-wide information:

  docker info

• Get help with Docker:

  docker --help

Docker Hub

• Login to Docker Hub:

  docker login -u <username>

• Publish an image to Docker Hub:

  docker push <username>/<image_name>

• Pull an image from Docker Hub:

  docker pull <image_name>

Advanced Docker CLI Commands

Networking

• Create a new network:

  docker network create <network_name>

• List all networks:

  docker network ls

• Connect a container to a network:

  docker network connect <network_name> <container_name>

• Disconnect a container from a network:

  docker network disconnect <network_name> <container_name>

Volumes

• Create a volume:

  docker volume create <volume_name>

• List all volumes:

  docker volume ls

• Remove a volume:

  docker volume rm <volume_name>

• Inspect a volume:

  docker volume inspect <volume_name>

Compose

• Start services defined in a docker-compose.yml file:

  docker-compose up

• Stop services defined in a docker-compose.yml file:

  docker-compose down

• Run a specific service:

  docker-compose run <service_name>

Swarm

• Initialize a new swarm:

  docker swarm init

• Join an existing swarm:

  docker swarm join --token <token> <manager_ip>:<port>

• List nodes in the swarm:

  docker node ls

• Deploy a stack in swarm mode:

  docker stack deploy -c <compose_file> <stack_name>

Security

• Scan an image for vulnerabilities:

  docker scan <image_name>

• Sign an image:

  docker trust sign <image_name>

• Enable content trust:

  export DOCKER_CONTENT_TRUST=1

Resource Management

• Limit container memory usage:

  docker run -m <memory_limit> <image_name>

• Limit container CPU usage:

  docker run --cpus=<cpu_limit> <image_name>

Ref: Docker CLI Cheat Sheet