feat(docker): Added cadvisor on all hosts, added docker metric exporter, added docker compose restart as handler, moved repetetive directory/permission creation into loops, moved repetetive values into variables, cleanup compose template for better empty lines

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/docker_host/files/daemon.json

@@ -0,0 +1,3 @@
+{
+  "metrics-addr": "0.0.0.0:9323"
+}