Docker Basics
// Check Docker version.
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
// List running containers.
docker ps
// List all containers (including stopped one).
docker ps -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
// Remove all stopped containers.
docker container prune
// Remove all unused images.
docker image prune
// Remove all unused volumes.
docker volume prune
