From 6a850e9ea8794942ecb558bc88a5c45b4a3b6939 Mon Sep 17 00:00:00 2001
From: CRA Fabio Yasuo Furushou <fabio.furushou@craftsman-software.com>
Date: Tue, 6 Aug 2024 16:43:12 +0900
Subject: [PATCH] Add PodMonitor to gha-runner-scale-set-controller chart

---
 .../templates/_helpers.tpl                    |  4 ++++
 .../manager_cluster_pod_monitor.yaml          | 23 +++++++++++++++++++
 .../values.yaml                               |  2 ++
 3 files changed, 29 insertions(+)
 create mode 100644 charts/gha-runner-scale-set-controller/templates/manager_cluster_pod_monitor.yaml

diff --git a/charts/gha-runner-scale-set-controller/templates/_helpers.tpl b/charts/gha-runner-scale-set-controller/templates/_helpers.tpl
index 075d21ae..87cb6fba 100644
--- a/charts/gha-runner-scale-set-controller/templates/_helpers.tpl
+++ b/charts/gha-runner-scale-set-controller/templates/_helpers.tpl
@@ -111,6 +111,10 @@ Create the name of the service account to use
 {{- include "gha-runner-scale-set-controller.fullname" . }}-listener
 {{- end }}
 
+{{- define "gha-runner-scale-set-controller.managerPodMonitor" -}}
+{{- include "gha-runner-scale-set-controller.fullname" . }}
+{{- end }}
+
 {{- define "gha-runner-scale-set-controller.leaderElectionRoleName" -}}
 {{- include "gha-runner-scale-set-controller.fullname" . }}-leader-election
 {{- end }}
diff --git a/charts/gha-runner-scale-set-controller/templates/manager_cluster_pod_monitor.yaml b/charts/gha-runner-scale-set-controller/templates/manager_cluster_pod_monitor.yaml
new file mode 100644
index 00000000..fb700c75
--- /dev/null
+++ b/charts/gha-runner-scale-set-controller/templates/manager_cluster_pod_monitor.yaml
@@ -0,0 +1,23 @@
+{{- if hasKey .Values "metrics" }}
+{{- if and (hasKey .Values.metrics "podMonitor") .Values.metrics.podMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: PodMonitor
+metadata:
+  labels:
+    {{- include "gha-runner-scale-set-controller.labels" . | nindent 4 }}
+  name: {{ include "gha-runner-scale-set-controller.managerPodMonitor" . }}
+  namespace: {{ .Release.Namespace }}
+spec:
+  podMetricsEndpoints:
+  {{- with .Values.metrics }}
+  - path: {{ .listenerEndpoint }}
+    port: metrics
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "gha-runner-scale-set-controller.selectorLabels" . | nindent 6 }}
+  namespaceSelector:
+    matchNames:
+    - {{ .Release.Namespace }}
+{{- end }}
+{{- end }}
diff --git a/charts/gha-runner-scale-set-controller/values.yaml b/charts/gha-runner-scale-set-controller/values.yaml
index 8e74317e..a7278fa0 100644
--- a/charts/gha-runner-scale-set-controller/values.yaml
+++ b/charts/gha-runner-scale-set-controller/values.yaml
@@ -93,6 +93,8 @@ priorityClassName: ""
 #   controllerManagerAddr: ":8080"
 #   listenerAddr: ":8080"
 #   listenerEndpoint: "/metrics"
+#   podMonitor:
+#     enabled: true
 
 flags:
   ## Log level can be set here with one of the following values: "debug", "info", "warn", "error".