Docker

A handy guide to essential Docker commands for quick reference and efficient container management.

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Docker Commands

Login to docker hub

docker login

Pulling an Image

docker pull <image-name>

Building an Image

docker build . -t <account-name>/<image-name>

Pushing an Image

docker push <account-name>/<image-name>

Running a Container

• Basic run:

  docker run nginx

• Run with a specific version:

  docker run <image-name>:<version>

• Run with interactive input and prompt:

  docker run -it <image-name>

• Run with a sleep command:

  docker run ubuntu sleep 5

• Run with environment variable:

  docker run -e <env_name>:<env_value> <image_name>

  Docker networks

• DeprecatedRun with link command

  docker run -d --link <hostname-in-application>:<container-name> <image-name>

• Run with network command

  docker network create my-network
  docker run --network my-network --name container1 <image1>

Managing Ports and Volumes

• Map host port to container port:

  docker run -p <docker-host-port>:<docker-container-port> <image-name>

• Create and mount a volume
  • Volume mount

    docker volume create <volume_name>
    docker run --mount type=volume,source=<volume_name>,target=<location_inside_container> mysql

  • Bind mount

    docker run --mount type=bind,source=<folder_location_on_docker_host>,target=<location_inside_container> mysql

• DeprecatedCreate and mount a volume
  • Volume mount

    docker volume create <volume-name>
    docker run -v <volume-name>:<location_inside_container>

  • Bind mount

    docker run -v <folder_location_on_docker_host>:<location_inside_container>

Container Management

• Run in detached mode:

  docker run -d <image-name>

• Get image layer details:

  docker history <image-name>

• Attach to a running container:

  docker attach <container-id>

• Execute a command in a running container:

  docker exec <container-id-or-name> <command>

Viewing and Inspecting

• List all containers:

  docker ps -a

• List all images:

  docker images

• Inspect a container:

  docker inspect <container-name-or-id>

• View container logs:

  docker logs <container-name-or-id>

Stopping and Removing

• Stop a container:

  docker stop <container-id-or-name>

• Remove a container:

  docker rm <container-id-or-name>

• Remove an image:

  docker rmi <image-name>

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Docker compose

Running docker compose

• Run docker compose:

  docker-compose up

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Docker registry

Running docker registry locally

• Running docker registry locally

  docker run -d -p 5000:5000 --name registry registry:2

Push image to registry

• Tag an image

  docker image tag <image-name> <tag-name>

• Push image to registry:

  docker push <user-name>/<image-name>

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Contributing

Feel free to contribute by adding more commands or improving existing ones! Open a pull request or file an issue for any suggestions.

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License

This repository is licensed under the MIT License.

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Happy Dockering! 🚢