Sahaj-Srivastava24/docker-cheatsheet.md

## docker-cheatsheet.md

      
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              docker-cheatsheet.md
            
          
    1. Docker Basics


docker --version: Check Docker version
docker version: Detailed Docker version information
docker info: Get detailed system info about Docker

2. Container Lifecycle Management


docker ps: List all running containers
docker ps -a: List all containers (including stopped)
docker start <container_name_or_id>: Start a stopped container
docker stop <container_name_or_id>: Stop a running container
docker restart <container_name_or_id>: Restart a container
docker rm <container_name_or_id>: Remove a stopped container
docker container prune: Remove all stopped containers
docker run -it <image_name> bash: Run a container interactively
docker run -d <image_name>: Run a container in detached mode
docker run -p <host_port>:<container_port> <image_name>: Port mapping
docker run --name <container_name> <image_name>: Assign a custom name
docker run --rm <image_name>: Automatically remove container when it stops

3. Image Management


docker images: List all images
docker pull <image_name>:<tag>: Pull an image (default tag is latest)
docker rmi <image_name_or_id>: Remove an image
docker image prune: Remove unused images
docker build -t <image_name>:<tag> <path_to_dockerfile>: Build an image
docker tag <image_name>:<tag> <repo>/<tag>: Rename or tag an image
docker push <image_name>:<tag>: Push an image to a repository
docker save -o <file_name.tar> <image_name>:<tag>: Save image to file
docker load -i <file_name.tar>: Load image from file

4. Docker Volumes & Data Persistence


docker volume ls: List volumes
docker volume create <volume_name>: Create a volume
docker run -v <volume_name>:/path/in/container <image_name>: Attach a volume
docker volume rm <volume_name>: Remove a volume
docker volume prune: Remove unused volumes

5. Networks in Docker


docker network ls: List networks
docker network create <network_name>: Create a custom network
docker network connect <network_name> <container_name>: Connect container to a network
docker network disconnect <network_name> <container_name>: Disconnect a container
docker network inspect <network_name>: Inspect network details
docker network rm <network_name>: Remove a network
docker network prune: Remove unused networks

6. Container Logs & Monitoring


docker logs <container_name_or_id>: Show logs for a container
docker logs -f <container_name_or_id>: Follow logs in real-time
docker stats: Monitor resource usage
docker inspect <container_name_or_id>: Inspect container details

7. Executing Commands in Containers


docker exec <container_name_or_id> <command>: Run a command inside a running container
docker exec -it <container_name_or_id> bash: Interactive shell access

8. Cleanup Commands


docker container prune: Remove stopped containers
docker image prune: Remove unused images
docker volume prune: Remove unused volumes
docker network prune: Remove unused networks
docker system prune: Remove all unused Docker objects (dangerous)

9. Docker Compose


docker-compose up: Start services defined in docker-compose.yml
docker-compose up -d: Start services in detached mode
docker-compose down: Stop services
docker-compose build: Build or rebuild images
docker-compose ps: View running services
docker-compose logs -f: Follow service logs
docker-compose up -d --scale <service_name>=<count>: Scale a service
docker-compose down -v: Remove volumes when stopping service