Install Docker
--------------

	dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
	dnf install -y docker-ce --nobest

	systemctl enable --now docker
	systemctl status docker


Docker is installed by default on `/var/lib/docker`. To move it on other file system, for example `/app/docker`:

	systemctl stop docker

	cd /var/lib/
	mv docker /app/
	ln -s /app/docker .

	systemctl start docker
	systemctl status docker

Usefull commands
----------------

Alias to stop and remove all containers:

	alias cclean='docker stop $(docker ps -a -q); docker rm $(docker ps -a -q)'
    
Truncate all container logs:

   	truncate -s 0 $(docker inspect --format='{{.LogPath}}' $(docker ps -a -q))

Save an image:

	docker save sabnzbd/sabnzbd | pigz > /mnt/yavin4/tmp/sabnzbd.tar.gz

Load an image:

	gunzip -c /mnt/yavin4/tmp/sabnzbd.tar.gz | docker load

Set auto start for all host containers:

	docker update --restart unless-stopped $(docker ps -q)

Run command in bash:

	docker exec -it <container> bash