feat: add backups feature

deploy/examples/nginx/.env.example

@@ -39,3 +39,13 @@ PANEL_WEBHOOK_SECRET=change_me
 # Nginx and Docker network ranges that may set X-Forwarded-For.
 TRUSTED_PROXIES=127.0.0.1,::1,172.16.0.0/12
 
+# Periodic backups from the worker container. Disabled by default.
+BACKUP_ENABLED=False
+BACKUP_CHAT_ID=
+BACKUP_INTERVAL_SECONDS=3600
+BACKUP_LOCAL_RETENTION=100
+BACKUP_ARCHIVE_SIGNATURE_REQUIRED=True
+BACKUP_ARCHIVE_SIGNATURE_SECRET=
+BACKUP_COMPOSE_ENABLED=True
+COMPOSE_BACKUP_SOURCE=.
+COMPOSE_RESTORE_MODE=rw

deploy/examples/nginx/docker-compose.yml

@@ -67,6 +67,7 @@ services:
       TRUSTED_PROXIES: ${TRUSTED_PROXIES:-127.0.0.1,::1,172.16.0.0/12}
     volumes:
       - shop-data:/app/data
+      - ${COMPOSE_BACKUP_SOURCE:-.}:/app/compose-source:${COMPOSE_RESTORE_MODE:-rw}
     networks:
       - remnawave-shop
     depends_on:
@@ -91,6 +92,7 @@ services:
       <<: *app_environment
     volumes:
       - shop-data:/app/data
+      - ${COMPOSE_BACKUP_SOURCE:-.}:/app/compose-source:ro
     networks:
       - remnawave-shop
     depends_on: