# Day 20 Task : Docker commands Cheat-Sheet. ### ***Docker commands:*** ### **Docker Management Commands:** * **docker version**: Show the Docker version information. * **docker info**: Display system-wide information about Docker. * **docker images**: List all local Docker images. * **docker ps**: List running containers. * **docker ps -a**: List all containers (including stopped ones). * **docker search <image\_name>**: Search for Docker images in the Docker Hub registry. * **docker pull <image\_name>**: Download a Docker image from a registry. * **docker rmi <image\_name>**: Remove a local Docker image. * **docker image prune**: Remove unused Docker images. * **docker container prune**: Remove stopped containers. * **docker volume prune**: Remove unused Docker volumes. * **docker network prune**: Remove unused Docker networks. ### **Docker Container Lifecycle:** * **docker run <image\_name>**: Create and start a container from an image. * **docker start <container\_id>**: Start a stopped container. * **docker stop <container\_id>**: Stop a running container. * **docker restart <container\_id>**: Restart a running or stopped container. * **docker pause <container\_id>**: Pause all processes within a container. * **docker unpause <container\_id>**: Unpause a paused container. * **docker kill <container\_id>**: Send a SIGKILL signal to a container (force stop). * **docker rm <container\_id>**: Remove a stopped container. * **docker container inspect <container\_id>**: Display detailed information about a container. ### **Docker Image and Container Customization:** * **docker build -t <image\_name>:<tag> <path\_to\_dockerfile>**: Build a Docker image from a Dockerfile. * **docker commit <container\_id> <new\_image\_name>:<tag>**: Create a new image from a container's changes. * **docker exec -it <container\_id> <command>**: Execute a command inside a running container. * **docker cp <local\_path> <container\_id>:<container\_path>**: Copy files between the host and a container. * **docker logs <container\_id>**: Fetch the logs of a container. * **docker rename <old\_container\_name> <new\_container\_name>**: Rename a container. * **docker update --memory <memory\_limit> <container\_id>**: Update the memory limit of a running container. ### **Docker Volume and Network Management:** * **docker volume ls**: List Docker volumes. * **docker volume create <volume\_name>**: Create a Docker volume. * **docker volume rm <volume\_name>**: Remove a Docker volume. * **docker network ls**: List Docker networks. * **docker network create <network\_name>**: Create a Docker network. * **docker network rm <network\_name>**: Remove a Docker network. ### **Docker Compose:** * **docker-compose up**: Create and start containers defined in the docker-compose.yml file. * **docker-compose down**: Stop and remove containers, networks, and volumes defined in the docker-compose.yml file. ### **Docker Compose:** * **docker-compose build**: Build or rebuild services defined in the docker-compose.yml file. * **docker-compose up -d**: Create and start containers in detached mode (background). * **docker-compose logs**: Fetch the logs of all services in the docker-compose project. * **docker-compose ps**: List containers status in the docker-compose project. * **docker-compose stop**: Stop all containers in the docker-compose project. * **docker-compose down -v**: Stop and remove containers, networks, and volumes in the docker-compose project. * **docker-compose exec <service\_name> <command>**: Execute a command inside a running service container. ### **Docker Volume and Bind Mounts:** * **docker volume ls**: List Docker volumes. * **docker volume create <volume\_name>**: Create a Docker volume. * **docker volume rm <volume\_name>**: Remove a Docker volume. * **docker run -v <host\_path>:<container\_path> <image\_name>**: Mount a host directory or file as a volume in the container. * **docker run -v <volume\_name>:<container\_path> <image\_name>**: Mount a Docker volume in the container. ### **Docker Network Management:** * **docker network ls**: List Docker networks. * **docker network create <network\_name>**: Create a Docker network. * **docker network rm <network\_name>**: Remove a Docker network. * **docker network inspect <network\_name>**: Display detailed information about a Docker network. * **docker run --network=<network\_name> <image\_name>**: Connect a container to a specific network. ### **Docker Registry Interaction:** * **docker login**: Log in to a Docker registry. * **docker logout**: Log out from a Docker registry. * **docker tag <source\_image>:<source\_tag> <registry\_url>/<image\_name>:<tag>**: Tag an image for a private registry. * **docker push <registry\_url>/<image\_name>:<tag>**: Push an image to a private registry. * **docker pull <registry\_url>/<image\_name>:<tag>**: Pull an image from a private registry. ### **Docker System and Troubleshooting:** * **docker system df**: Show Docker disk usage. * **docker system events**: Display system events such as container creation, starting, stopping, etc. * **docker system info**: Display system-wide information about Docker. * **docker system prune**: Remove unused data (containers, images, networks, and volumes). * **docker stats <container\_id>**: Display live stream of container resource usage statistics. * **docker logs <container\_id>**: Fetch the logs of a container. ### **Docker Security:** * **docker scan <image\_name>**: Scan a Docker image for security vulnerabilities. * **docker secret create <secret\_name> <file\_path>**: Create a Docker secret from a file. ### **Docker Build and Deployment:** * **docker build -t <image\_name>:<tag> <path\_to\_dockerfile>**: Build a Docker image from a Dockerfile with a custom name and tag. * **docker build -t <image\_name>:<tag> <url\_to\_git\_repo>**: Build a Docker image from a Dockerfile located in a Git repository. * **docker run -d -p <host\_port>:<container\_port> <image\_name>**: Run a container and publish ports from the host to the container. * **docker run -d --name <container\_name> <image\_name>:<tag>**: Run a container with a custom name. * **docker push <image\_name>:<tag>**: Push an image to a Docker registry. * **docker pull <image\_name>:<tag>**: Pull an image from a Docker registry. ### **Docker Container Cleanup:** * **docker container prune**: Remove stopped containers. * **docker system prune -a**: Remove all unused data (containers, images, networks, and volumes). * **docker volume prune**: Remove unused Docker volumes. * **docker network prune**: Remove unused Docker networks. ### **Docker System and Information:** * **docker info**: Display system-wide information about Docker. * **docker version**: Show the Docker version information. * **docker events**: Display real-time events from the server. * **docker stats**: Display a live stream of container resource usage statistics. * **docker ps -a --no-trunc**: Show all containers and their complete command lines. * **docker history <image\_name>**: Show the history of an image, including its layers and commands. ### **Docker Health Checks:** * **docker run --health-cmd="<command>" <image\_name>**: Specify a command to run to check container health. * **docker inspect --format='{{json .**[**State.Health**](http://State.Health)**.Status}}' <container\_id>**: Check the health status of a container. * **docker ps --filter "health=healthy"**: List containers that are in a healthy state. Thanks for reading.