Add auto-backup in HOME_ASSISTANT, MATRIX, N8N, PROTONMAIL

roles/protonmail/templates/docker-compose.yml.j2

@@ -0,0 +1,31 @@
+version: '3'
+
+services: 
+  protonmail-bridge:
+    image: shenxn/protonmail-bridge
+    restart: always
+    container_name: protonmail-bridge
+    networks:
+      - protonmail
+    volumes:
+      - protonmail:/root
+  
+  backup_protonmail:
+    image: offen/docker-volume-backup:latest
+    restart: always
+    environment:
+      BACKUP_CRON_EXPRESSION: "{{ server.backup.cron_expression }}"
+      BACKUP_FILENAME: "{{ server.backup.filename_date_format }}-protonmail.tar.gz"
+      BACKUP_LATEST_SYMLINK: protonmail.latest.tar.gz
+      BACKUP_EXCLUDE_REGEXP: "\\.log$$"
+      BACKUP_RETENTION_DAYS: "{{ server.backup.retention_days }}"
+    volumes:
+      - protonmail:/backup:ro
+      - {{ server.backup.folder }}/protonmail:/archive
+
+volumes:
+  protonmail:
+
+networks:
+  protonmail:
+      external: true