Cheat Sheet #day15 - Docker Commands

Docker Commands Cheat Sheet

Docker is a platform for developing, shipping, and running applications in containers. Here is a cheat sheet with the most commonly used Docker commands.

Basic Docker Commands

• Check Docker Version:

    docker --version
  

• Get System-wide Information:

    docker info
  

Working with Containers

• List Running Containers:

    docker ps
  

• List All Containers (including stopped):

    docker ps -a
  

• Start a Container:

    docker start CONTAINER_ID
  

• Stop a Container:

    docker stop CONTAINER_ID
  

• Remove a Container:

    docker rm CONTAINER_ID
  

• Remove All Stopped Containers:

    docker container prune
  

Working with Images

• List Images:

    docker images
  

• Pull an Image from Docker Hub:

    docker pull IMAGE_NAME
  

• Remove an Image:

    docker rmi IMAGE_NAME
  

• Build an Image from a Dockerfile:

    docker build -t IMAGE_NAME PATH_TO_DOCKERFILE
  

• Tag an Image:

    docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]
  

Running Containers

• Run a Container (from an image):

    docker run IMAGE_NAME
  

• Run a Container in Detached Mode:

    docker run -d IMAGE_NAME
  

• Run a Container with a Specific Name:

    docker run --name CONTAINER_NAME IMAGE_NAME
  

• Run a Container and Map Ports:

    docker run -p HOST_PORT:CONTAINER_PORT IMAGE_NAME
  

• Run a Container and Mount a Volume:

    docker run -v /host/path:/container/path IMAGE_NAME
  

Inspecting Containers and Images

• Inspect a Container:

    docker inspect CONTAINER_ID
  

• Inspect an Image:

    docker inspect IMAGE_NAME
  

Managing Docker Networks

• List Docker Networks:

    docker network ls
  

• Create a Network:

    docker network create NETWORK_NAME
  

• Remove a Network:

    docker network rm NETWORK_NAME
  

• 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
  

Docker Compose Commands

• Start Services Defined in docker-compose.yml:

    docker-compose up
  

• Start Services in the Background:

    docker-compose up -d
  

• Stop Services:

    docker-compose down
  

• Build or Rebuild Services:

    docker-compose build
  

• View Compose Logs:

    docker-compose logs
  

• Scale Services:

    docker-compose scale SERVICE=NUM
  

Miscellaneous Commands

• View Container Logs:

    docker logs CONTAINER_ID
  

• Execute a Command in a Running Container:

    docker exec -it CONTAINER_ID COMMAND
  

• Follow Log Output:

    docker logs -f CONTAINER_ID
  

• Restart a Container:

    docker restart CONTAINER_ID
  

Cleaning Up

• Remove All Unused Images:

    docker image prune -a
  

• Remove All Unused Volumes:

    docker volume prune
  

• Remove All Unused Networks:

    docker network prune
  

Conclusion

This cheat sheet provides a quick reference to the most commonly used Docker commands, helping you manage containers, images, networks, and more efficiently. For more detailed information, refer to the official Docker documentation.