feat(observability-client): user and password for vector referenced from a secret

template/stacks/observability-client/vector/values.yaml

@@ -6,6 +6,17 @@ args:
   - -w
   - --config-dir
   - /etc/vector/
+env:
+  - name: VECTOR_USER
+    valueFrom:
+      secretKeyRef:
+        name: simple-user-secret
+        key: username
+  - name: VECTOR_PASSWORD
+    valueFrom:
+      secretKeyRef:
+        name: simple-user-secret
+        key: password
 containerPorts:
   - name: prom-exporter
     containerPort: 9090
@@ -40,8 +51,8 @@ customConfig:
         - https://{{{ .Env.DOMAIN_O12Y }}}/insert/elasticsearch/
       auth:
         strategy: basic
-        user: simple-user
-        password: simple-password  
+        user: ${VECTOR_USER}
+        password: ${VECTOR_PASSWORD}
       mode: bulk
       api_version: v8
       compression: gzip