add backup service with automated daily backups and configuration

docker-compose.yml

@@ -108,6 +108,25 @@ services:
     networks:
       - prometheus_network
 
+  backup:
+    image: offen/docker-volume-backup:latest
+    environment:
+      BACKUP_CRON_EXPRESSION: "0 4 * * *"
+      BACKUP_RETENTION_DAYS: "14"
+      BACKUP_COMPRESSION: "gz"
+      BACKUP_FILENAME: "backup-infra-%Y-%m-%dT%H-%M-%S.tar.gz"
+
+      BACKUP_BACKEND: "rclone"
+      RCLONE_REMOTE_NAME: "ftp"
+      RCLONE_REMOTE_PATH: "/backups/infra"
+    secrets:
+      - backup_ftp_config
+    entrypoint: /bin/sh -c "mkdir -p /root/.config/rclone && cat /run/secrets/backup_ftp_config > /root/.config/rclone/rclone.conf && /usr/bin/backup -foreground"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - giteadata:/backup/gitea:ro
+      - backuptemp:/tmp/backup
+
 secrets:
   woodpecker_agent_secret:
     name: woodpecker_agent_secret_${DATETIME}
@@ -118,6 +137,9 @@ secrets:
   woodpecker_gitea_client:
     name: woodpecker_gitea_client_${DATETIME}
     file: ./secrets/woodpecker_gitea_client
+  backup_ftp_config:
+    name: backup_ftp_config_${DATETIME}
+    file: ./secrets/backup_ftp_config
 
 configs:
   caddy_config:
@@ -132,6 +154,7 @@ volumes:
   woodpeckerdata:
   reversecaddyconfig:
   reversecaddydata:
+  backuptemp:
 
 networks:
   reverse: