- Change manifests for Prometheus installation

- Change instructions for deploying Prometheus stack and Pushgateway
- Additional grouping to pushgateway to avoid overwriting of metrics in different pods / processes
- Bugfix to ensure good retrieval of css en js files in eveai_app

scaleway/manifests/base/applications/backend/eveai-workers/deployment.yaml

@@ -54,6 +54,14 @@ spec:
               name: eveai-secrets
               key: PUSH_GATEWAY_PORT
               optional: true
+        - name: POD_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+        - name: POD_NAMESPACE
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
         resources:
           requests:
             cpu: "200m"