2026-03-12 21:01:38

tiddlywiki/Docker notes.md

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+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
+    
+