[POLICY] Enable prometheus integration for policy fwk

1. Define serviceMonitor for policy components
2. Changes to common serviceMonitor tpl file to include
tls params in authentication config, and to provide ability
to overrride labels.

Issue-ID: POLICY-3779
Signed-off-by: Rashmi Pujar <rashmi.pujar1@bell.ca>
Change-Id: I79441958698271d9118efb78cfd121433e201ebd
diff --git a/kubernetes/policy/components/policy-pap/values.yaml b/kubernetes/policy/components/policy-pap/values.yaml
index a31de71..3ef2356 100755
--- a/kubernetes/policy/components/policy-pap/values.yaml
+++ b/kubernetes/policy/components/policy-pap/values.yaml
@@ -175,3 +175,22 @@
   nameOverride: policy-pap
   roles:
     - read
+
+prometheus:
+  enabled: true
+
+metrics:
+  serviceMonitor:
+    # Override the labels based on the Prometheus config parameter: serviceMonitorSelector.
+    # The default operator for prometheus enforces the below label.
+    labels:
+      release: prometheus
+    enabled: true
+    port: http-api
+    interval: 60s
+    isHttps: true
+    basicAuth:
+      enabled: true
+      externalSecretNameSuffix: policy-pap-user-creds
+      externalSecretUserKey: login
+      externalSecretPasswordKey: password