add envoy admin port and metrics

Author: shcherbak

charts/synapse/Chart.yaml

@@ -1,3 +1,3 @@
 ---
 name: synapse
-version: 0.1.1
+version: 0.1.2

charts/synapse/templates/envoy-deployment.yaml

@@ -19,6 +19,11 @@ spec:
       labels:
         {{- include "synapse-client-reader-envoy.selectorLabels" . | nindent 8 }}
       annotations:
+        {{- if .Values.envoyProxy.metrics }}
+        prometheus.io/port: "9901"
+        prometheus.io/scrape: "true"
+        prometheus.io/path: "/stats/prometheus"
+        {{- end }}
         checksum/config: {{ .Files.Get "scripts/envoy.yaml" | sha256sum }}
       {{- with .Values.envoyProxy.podAnnotations }}
         {{- toYaml . | nindent 8 }}

charts/synapse/templates/envoy-service.yaml

@@ -12,5 +12,9 @@ spec:
       targetPort: http
       protocol: TCP
       name: http
+    - port: {{ .Values.envoyProxy.admin.port }}
+      targetPort: http-admin
+      protocol: TCP
+      name: http-admin
   selector:
     {{- include "synapse-client-reader-envoy.selectorLabels" . | nindent 4 }}

charts/synapse/values.yaml

@@ -202,6 +202,8 @@ ingress:
     - "/_matrix/client/(r0|v3|unstable)/notifications$"
     # User directory search requests
     - "/_matrix/client/(api/v1|r0|v3|unstable)/user_directory/search$"
+    # TODO: check search url
+    # "/_matrix/client/(r0|v3|unstable)/user_directory/search$"
 
 admin:
   serverName: NOT-CONFIGURED
@@ -251,6 +253,9 @@ slidingSyncProxy:
 
 envoyProxy:
   enabled: true
+  admin:
+    port: 9901
+  metrics: true
   service:
     type: ClusterIP
     port: 80