Docker

Title: Docker Cheatsheet

Author: Umair Anwar

Subject: Docker

Language: English

Source: Docker Documentation

Explore docker basics, container management, container lifecycle, managing images, docker-compose and cleanup.

Docker Basics

Check docker version

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

docker image ls

List running containers

docker container ls

List all containers

docker ps -a

docker container ls -a

Create and start a new container from an image

docker run <options> <images-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>

Prune to remove unused images.

docker image prune

Docker Compose

Run a docker-compose file.

docker-compose up

Run a docker-compose file to stop services.

docker-compose down

List services in a compose file.

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 image registry

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

Check container logs.

docker logs <container-name/id>

Start an interactive shell in a running container.

docker exec -it <container-name/id> /bin/bash

Display resource usage for a container.

docker stats <container-name/id>

Cleanup

Prune all stepped containers, unused images and networks.

docker system prune

Remove stoped containers.

docker container prune

Remove unused images.

docker images prune

Remove unused volumes.

docker volume prune