added the official docker cli

-switched to user 1000 for security.
-added user to docker group
-properly mounted btrfs drive on host allows users to create snapshots

backupbot.conf

@@ -0,0 +1,9 @@
+TZ=America/Los_Angeles
+BACKUP_DIR=/backups/postgres
+LOG_FILE=/config/log/pgbackup.log
+MAX_RETRIES=3
+GOTIFY_URL=http://gotify.example.com
+GOTIFY_TOKEN=your_gotify_token_here
+BACKUP_HOUR=03
+BACKUP_MINUTE=00
+BACKUPBOT_WEB_LOGGING=DEBUG