docker commands:

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Here is a list of commonly used Docker commands, categorized by purpose:

1. Docker Basics

  • Check Docker version: 
    docker --version
  • Show system-wide information about Docker: 
    docker info

2. Container Management

  • List running containers:

    docker ps

  • List all containers (including stopped ones):

    docker ps -a

  • Run a new container:

    docker run <image_name>

    Common options:

    • -it: Run interactively with a terminal.
    • --name <container_name>: Assign a name to the container.
    • -d: Run in detached mode (background).
    • -p <host_port>:<container_port>: Map ports.

    Example:

    docker run -it --name my-container -p 8080:80 nginx

  • Start a stopped container:

    docker start <container_name_or_id>

  • Stop a running container:

    docker stop <container_name_or_id>

  • Restart a container:

    docker restart <container_name_or_id>

  • Remove a container:

    docker rm <container_name_or_id>

  • Remove all stopped containers:

    docker container prune

3. Image Management

  • List Docker images: 
    docker images
  • Pull an image from Docker Hub: 
    docker pull <image_name>
  • Build an image from a Dockerfile: 
    docker build -t <image_name> <path_to_dockerfile_directory>
  • Tag an image: 
    docker tag <image_name>:<tag> <new_image_name>:<new_tag>
  • Remove an image: 
    docker rmi <image_name_or_id>
  • Remove unused images: 
    docker image prune

4. Network Management

  • List Docker networks: 
    docker network ls
  • Inspect a network: 
    docker network inspect <network_name>
  • Create a new network: 
    docker network create <network_name>
  • Connect a container to a network: 
    docker network connect <network_name> <container_name_or_id>
  • Disconnect a container from a network: 
    docker network disconnect <network_name> <container_name_or_id>

5. Volumes

  • List volumes: 
    docker volume ls
  • Create a volume: 
    docker volume create <volume_name>
  • Inspect a volume: 
    docker volume inspect <volume_name>
  • Remove a volume: 
    docker volume rm <volume_name>
  • Remove unused volumes: 
    docker volume prune

6. Logs and Monitoring

  • View logs of a container: 
    docker logs <container_name_or_id>
  • Stream logs in real time: 
    docker logs -f <container_name_or_id>
  • View resource usage of containers: 
    docker stats

7. Docker Compose

  • Start services defined in docker-compose.yml: 
    docker-compose up
    Common options:
    • -d: Run in detached mode.
  • Stop services: 
    docker-compose down
  • View running services: 
    docker-compose ps

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