added support for btrfs snapshots

docker-compose.yml

@@ -1,12 +1,15 @@
 services:
   backupbot:
-    image: gitea.calahilstudios.com/calahil/backupbot
+    image: gitea.calahilstudios.com/calahil/backupbot:latest
     container_name: backupbot
+    privileged: true
     environment:
       - TZ=Etc/UTC
     volumes:
       # Backup folder to store dumps (accessible by Duplicati)
-      - /srv/backups/postgres:/backups
+      - /srv/backups:/backups
+      # Local docker config dirs
+      - /srv/appdata:/source/appdata:rshared
       # Docker socket to list containers
       - /var/run/docker.sock:/var/run/docker.sock:ro
     restart: unless-stopped