add metrics to sfu service

Author: gaelgatelement

DEVELOPERS.md

@@ -153,6 +153,9 @@ Verifies that the deployed workloads behave as expected and integrates well toge
 
 From the project root : `pytest test`
 
+Pytest caches the namespace name and created user tokens between run. To start a run from scratch,
+run `pytest test --cache-clear`.
+
 #### Special env variables
 - `PYTEST_KEEP_CLUSTER=1` : Do not destroy the cluster at the end of the test run.
 You must delete it using `kind delete cluster --name ess-helm` manually before running any other test run.

charts/matrix-stack/templates/matrix-rtc/sfu_service.yaml

@@ -21,6 +21,9 @@ spec:
   - name: http
     port: 7880
     targetPort: http
+  - name: metrics
+    port: 6789
+    targetPort: metrics
   selector:
     app.kubernetes.io/instance: "{{ $.Release.Name }}-matrix-rtc-sfu"
 {{- end -}}