feat: #be remove overwritten values and insert placeholders

backend/kustomize/base/database/deployment.yaml

@@ -15,11 +15,8 @@ spec:
               mountPath: /var/lib/postgresql/data
           env:
             - name: POSTGRES_DB
-              value: db_name
             - name: POSTGRES_USER
-              value: db_user
             - name: POSTGRES_PASSWORD
-              value: db_pass
           resources: {}
       volumes:
         - name: pgdata

backend/kustomize/base/webserver/deployment.yaml

@@ -18,4 +18,3 @@ spec:
             - name: PORT
               value: "80"
             - name: DATABASE_URL
-              value: postgres://db_user:db_pass@oetzi-database-service/db_name

backend/kustomize/base/webserver/ingress.yaml

@@ -4,10 +4,10 @@ metadata:
   name: ingress
 spec:
   rules:
-    - host: oetzi.eurac
+    - host: PLACEHOLER
       http:
         paths:
-          - path: /
+          - path: PLACEHOLDER
             pathType: Prefix
             backend:
               service: