From 472ddf7a88502cd8fc32c236f8d84eb15d4afa03 Mon Sep 17 00:00:00 2001
From: Peixian Wang <pxw@meta.com>
Date: Sun, 13 Apr 2025 19:13:43 -0400
Subject: [PATCH] Add prometheus integration with ServiceMonitor CRD

---
 charts/whatsapp-proxy-chart/Chart.yaml        |  2 +-
 .../templates/servicemonitor.yaml             | 24 +++++++++++++++++++
 charts/whatsapp-proxy-chart/values.yaml       |  5 ++++
 3 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 charts/whatsapp-proxy-chart/templates/servicemonitor.yaml

diff --git a/charts/whatsapp-proxy-chart/Chart.yaml b/charts/whatsapp-proxy-chart/Chart.yaml
index 3dff6131..61930088 100644
--- a/charts/whatsapp-proxy-chart/Chart.yaml
+++ b/charts/whatsapp-proxy-chart/Chart.yaml
@@ -17,7 +17,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 1.2.0
+version: 1.2.1
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
diff --git a/charts/whatsapp-proxy-chart/templates/servicemonitor.yaml b/charts/whatsapp-proxy-chart/templates/servicemonitor.yaml
new file mode 100644
index 00000000..8a85f1fb
--- /dev/null
+++ b/charts/whatsapp-proxy-chart/templates/servicemonitor.yaml
@@ -0,0 +1,24 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# License found in the LICENSE file in the root directory
+# of this source tree.
+{{- if .Values.enableServiceMonitor }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "whatsapp-proxy-chart.fullname" . }}-servicemonitor
+  namespace: default
+  labels:
+    release: {{ .Values.prometheus.release }}
+spec:
+  endpoints:
+  - interval: 30s
+    path: /metrics
+    port: stats
+  namespaceSelector:
+    matchNames:
+    - default
+  selector:
+    matchLabels:
+      {{- include "whatsapp-proxy-chart.selectorLabels" . | nindent 6 }}
+{{- end }}
diff --git a/charts/whatsapp-proxy-chart/values.yaml b/charts/whatsapp-proxy-chart/values.yaml
index 52bab0c0..1045794d 100644
--- a/charts/whatsapp-proxy-chart/values.yaml
+++ b/charts/whatsapp-proxy-chart/values.yaml
@@ -102,3 +102,8 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+# Enables service monitor for the prometheus operator.
+enableServiceMonitor: false
+prometheus:
+  release: my-prometheus-release