Docker Cheat sheet

Jay Kava

2 min read

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Feb 12, 2024

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Docker Basics :

// Check Docker version.
docker --version or docker -V

// Display system-wide information about Docker.
docker info

// Download an image from Docker Hub.
docker pull <image_name>

// List local Docker images.
docker images or docker image ls

// List running containers.
docker ps or docker container ls

// List all containers (including stopped ones
docker ps -a or docker container ls -a

// Create and start a new container from an image.
docker run <options> <image_name>

Container Lifecycle :

// Start a stopped container.
docker start <container_name/id>

// Stop a running container gracefully.
docker stop <container_name/id>

// Forcefully stop a running container.
docker kill <container_name/id>

// Restart a container
docker restart <container_name/id>

// Remove a stopped container.
docker rm <container_name/id>

Images :

// Build a docker image from a Dockerfile
docker build -t <image_name> <path_to_dockerfile>

//Remove an image
docker rmi <image_name>

//Remove all unused images
docker image prune

Docker Compose :

// Start services defined in a Docker Compose file
docker-compose up

// Stop and remove services defined in a Docker Compose file.
docker-compose down

// List services in a Compose file and their status.
docker-compose ps

// View logs for a specific service.
docker-compose logs <service_name>

// Run a command in a running service container.
docker-compose exec <service_name> <command>

Volumes :

// Create a named volume:
docker volume create <volume_name>

// Mount a volume to a container..
docker run -v <volume_name>:<container_path>

// List volumes
docker volume ls

// Remove a volume
docker volume rm <volume_name>

Docker Registry and Hub :

// Log in to a Docker registry
docker login

// Push an image to a registry
docker push <image_name>

// Pull an image from a registry
docker pull <image_name>

Networks :

// Create a user-defined network:
docker network create <network_name>

// List networks
docker network ls

// Connect a container to a network
docker network connect <network_name> <container_name/id>

//Disconnect a container from a network
docker network disconnect <network_name> <container_name/id>

Logs and Debugging :

// View container logs
docker logs <container_name/id>

// Start an interactive shell in a running container
docker exec-it <container_name/id> /bin/bash

// Display real-time container resource usage
docker stats <container_name/id>

CleanUp :

// Remove all stopped containers, unused networks, and images
docker system prune

//all info about docker image and size
docker system df

// Remove all stopped containers
docker container prune

// Remove all unused images
docker image prune

// Remove all unused volumes
docker volume prune

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