fix bug in initial db creation caused by prometheus lib rtying to access tables at load time

deploy/testing/docker-compose.yml

@@ -1,3 +1,4 @@
+name: c3lf-sys3-testing
 services:
   redis:
     image: redis
@@ -31,8 +32,9 @@ services:
       - DB_PASSWORD=system3
       - MAIL_DOMAIN=mail:1025
     volumes:
-      - ../../core:/code
-      - ../testdata.py:/code/testdata.py
+      - ../../core:/code:ro
+      - ../testdata.py:/code/testdata.py:ro
+      - backend_context:/code
     ports:
       - "8000:8000"
     depends_on:
@@ -47,8 +49,8 @@ services:
     command: npm run serve
     volumes:
       - ../../web:/web:ro
-      - /web/node_modules
-      - ./vue.config.js:/web/vue.config.js
+      - ./vue.config.js:/web/vue.config.js:ro
+      - frontend_context:/web
     ports:
       - "8080:8080"
     depends_on:
@@ -70,3 +72,5 @@ services:
 volumes:
   mariadb_data:
   mailpit_data:
+  frontend_context:
+  backend_context: