add config volume

compose.yml

@@ -28,6 +28,7 @@ services:
       - limesurvey_admin_password
     entrypoint: /usr/local/bin/custom-entrypoint.sh
     volumes:
+      - config:/var/www/html/application/config
       - app:/var/www/html/upload/surveys
     deploy:
       labels:
@@ -42,7 +43,7 @@ services:
         #- "traefik.http.middlewares.${STACK_NAME}-redirect.headers.SSLHost=${DOMAIN}"
         - "coop-cloud.${STACK_NAME}.version=0.1.0+5.3.18-220530-apache"
         - "backupbot.backup=true"
-        - "backupbot.backup.path=/var/www/html/upload/surveys"
+        - "backupbot.backup.path=/var/www/html/upload/surveys,/var/www/html/application/config"
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:8080"]
       interval: 30s
@@ -70,6 +71,7 @@ services:
 
 volumes:
   app:
+  config:
   postgres:
 
 networks: