Docker

https://github.com/docker/docker-install

Docker and Docker Compose install script:

curl -fsSL https://get.docker.com -o get-docker.sh
sh get-docker.sh

Default Docker Compose network config for proxy.

networks:
  default:
    name: proxy
    external: true

Install on RHEL

https://docs.docker.com/engine/install/rhel/

Remove all Podman packages first:

sudo dnf remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine \
                  podman \
                  runc

Add Docker CE repository:

sudo dnf -y install dnf-plugins-core
sudo dnf config-manager --add-repo https://download.docker.com/linux/rhel/docker-ce.repo

Running containers

COMMAND	DESCRIPTION
docker run <image>	Start a new container from an image
docker run -it <image>	Start a new container in interactive mode
docker run --rm <image>	Start a new container and remove it when it exits
docker create <image>	Create a new container
docker start <container>	Start a container
docker stop <container>	Graceful stop a container
docker kill <container>	Kill (SIGKILL) a container
docker restart <container>	Graceful stop and restart a container
docker pause <container>	Suspend a container
docker unpause <container>	Resume a container
docker rm <container>	Destroy a container

Container bulk management

COMMAND	DESCRIPTION
docker stop $(docker ps -q)	To stop all the running containers
docker stop $(docker ps -a -q)	To stop all the stopped and running containers
docker kill $(docker ps -q)	To kill all the running containers
docker kill $(docker ps -a -q)	To kill all the stopped and running containers
docker restart $(docker ps -q)	To restart all running containers
docker restart $(docker ps -a -q)	To restart all the stopped and running containers
docker rm $(docker ps -q)	To destroy all running containers
docker rm $(docker ps -a -q)	To destroy all the stopped and running containers
docker pause $(docker ps -q)	To pause all running containers
docker pause $(docker ps -a -q)	To pause all the stopped and running containers
docker start $(docker ps -q)	To start all running containers
docker start $(docker ps -a -q)	To start all the stopped and running containers
docker rm -vf $(docker ps -a -q)	To delete all containers including its volumes use
docker rmi -f $(docker images -a -q)	To delete all the images
docker system prune	To delete all dangling and unused images, containers, cache and volumes
docker system prune -a	To delete all used and unused images
docker system prune --volumes	To delete all docker volumes

Inspect containers

COMMAND	DESCRIPTION
docker ps	List running containers
docker ps --all	List all containers, including stopped
docker logs <container>	Show a container output
docker logs -f <container>	Follow a container output
docker logs -f <container> 2>&1 | grep string-to-search	Follow container logs and search for specific string occurrence
docker top <container>	List the processes running in a container
docker diff	Show the differences with the image (modified files)
docker inspect	Show information of a container (json formatted)

Executing commands

COMMAND	DESCRIPTION
docker attach <container>	Attach to a container
docker cp <container>:<container-path> <host-path>	Copy files from the container
docker cp <host-path> <container>:<container-path>	Copy files into the container
docker export <container>	Export the content of the container (tar archive)
docker exec <container>	Run a command inside a container
docker exec -it <container> /bin/bash	Open an interactive shell inside a container (there is no bash in some images, use /bin/sh)
docker wait <container>	Wait until the container terminates and return the exit code

Images

COMMAND	DESCRIPTION
docker image ls	List all local images
docker history <image>	Show the image history
docker inspect <image>	Show information (json formatted)
docker tag <image> <tag>	Tag an image
docker commit <container> <image>	Create an image (from a container)
docker import <url>	Create an image (from a tarball)
docker rmi <image>	Delete images
docker pull <user>/<repository>:<tag>	Pull an image from a registry
docker push <user>/<repository>:<tag>	Push an image to a registry
docker search <test>	Search an image on the official registry
docker login	Login to a registry
docker logout	Logout from a registry
docker save <user>/<repository>:<tag>	Export an image/repo as a tarball
docker load	Load images from a tarball

Volumes

COMMAND	DESCRIPTION
docker volume ls	List all volumes
docker volume create <volume>	Create a volume
docker volume inspect <volume>	Show information (json formatted)
docker volume rm <volume>	Destroy a volume
docker volume ls --filter="dangling=true"	List all dangling volumes (not referenced by any container)
docker volume prune	Delete all volumes (not referenced by any container)
docker run --rm --volumes-from <container> -v $(pwd):/backup busybox tar cvfz /backup/backup.tar.gz <container-path>	Backup a container
docker run --rm --volumes-from <container> -v $(pwd):/backup busybox sh -c "cd <container-path> && tar xvfz /backup/backup.tar.gz --strip 1"	Restore a container from backup