added docker

docs/docker.md

@@ -0,0 +1,34 @@
+# Docker
+General tips and tricks around docker, as it's usage has become unavoidable.
+
+## Docker compose as systemd services
+You will be able to start any docker compose program via `systemctl start docker-compose@<program>`.
+
+Create the file `/etc/systemd/system/docker-compose@.service` with the following content:
+```
+[Unit]
+Description=%i service with docker compose
+PartOf=docker.service
+After=docker.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=true
+WorkingDirectory=/etc/docker/compose/%i
+ExecStart=/usr/bin/docker compose up -d
+ExecStop=/usr/bin/docker compose stop
+
+[Install]
+WantedBy=multi-user.target
+```
+
+Create directories as necessary and place your `docker-compose.yml` in an appropriately named folder (as an example: "myprogram") in `/etc/docker-compose`.
+Ergo: Your docker-compose.yml should be in `/etc/docker/compose/myprogram/docker-compose.yml`.
+
+Reload the daemon and start your service:
+```
+systemctl daemon-reload
+sysetmctl start docker-compose@myprogram
+```
+More ideas:
+https://gist.github.com/mosquito/b23e1c1e5723a7fd9e6568e5cf91180f

index.md

@@ -24,6 +24,7 @@ Happy to accept pull requests for new topics!
 - [git](docs/GIT.md) version control software
 - [rainloop](docs/rainloop.md) webbased email client
 - [anki sync server](anki_sync_server.md) personal sync server for anki, a spaced repetition learning program
+- [docker](docs/docker.md) General tips and tricks around the container manager
 
 # Admin