From 953a31ff3b873af0a468a3cb0c37ee8f7c8d3fe5 Mon Sep 17 00:00:00 2001
From: Jeff French <jeff.french@moonswitch.com>
Date: Wed, 10 Jan 2024 06:46:13 -0600
Subject: [PATCH] Add monitor for gitops-dashboard

---
 .../gitops-dashboard-servicemonitor.yaml      | 43 +++++++++++++++++++
 charts/moonswitch-agent/values.yaml           | 14 +++++-
 2 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 charts/moonswitch-agent/templates/gitops-dashboard-servicemonitor.yaml

diff --git a/charts/moonswitch-agent/templates/gitops-dashboard-servicemonitor.yaml b/charts/moonswitch-agent/templates/gitops-dashboard-servicemonitor.yaml
new file mode 100644
index 0000000..e018020
--- /dev/null
+++ b/charts/moonswitch-agent/templates/gitops-dashboard-servicemonitor.yaml
@@ -0,0 +1,43 @@
+{{ $weave_gitops := index .Values "weave-gitops" }}
+{{- if and $weave_gitops.enabled $weave_gitops.metrics.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ template "moonswitch-agent.fullname" . }}-weave-gitops
+  labels:
+    {{- include "moonswitch-agent.labels" . | nindent 4 }}
+    {{- with $weave_gitops.metrics.serviceMonitor.additionalLabels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+spec:
+  jobLabel: {{ template "moonswitch-agent.fullname" . }}-weave-gitops
+  endpoints:
+  - port: http-metrics
+    {{- if $weave_gitops.metrics.serviceMonitor.path }}
+    path: {{ $weave_gitops.metrics.serviceMonitor.path }}
+    {{- end }}
+    {{- if $weave_gitops.metrics.serviceMonitor.interval }}
+    interval: {{ $weave_gitops.metrics.serviceMonitor.interval }}
+    {{- end }}
+    {{- if $weave_gitops.metrics.serviceMonitor.scrapeTimeout }}
+    scrapeTimeout: {{ $weave_gitops.metrics.serviceMonitor.scrapeTimeout }}
+    {{- end }}
+    {{- if $weave_gitops.metrics.serviceMonitor.metricRelabelings }}
+    metricRelabelings:
+    {{ toYaml $weave_gitops.metrics.serviceMonitor.metricRelabelings | indent 4 }}
+    {{- end }}
+    {{- if $weave_gitops.metrics.serviceMonitor.relabelings }}
+    relabelings:
+    {{ toYaml $weave_gitops.metrics.serviceMonitor.relabelings | indent 4 }}
+    {{- end }}
+    {{- if $weave_gitops.metrics.serviceMonitor.honorLabels }}
+    honorLabels: true
+    {{- end }}
+  selector:
+    matchLabels:
+      app.kubernetes.io/instance: {{ .Release.Name }}
+      app.kubernetes.io/name: weave-gitops
+  namespaceSelector:
+    matchNames:
+    - {{ .Release.Namespace }}
+{{- end }}
diff --git a/charts/moonswitch-agent/values.yaml b/charts/moonswitch-agent/values.yaml
index 3e8ce4b..1a68b62 100644
--- a/charts/moonswitch-agent/values.yaml
+++ b/charts/moonswitch-agent/values.yaml
@@ -202,7 +202,19 @@ weave-gitops:
   metrics:
     enabled: true
     annotations: {}
-    # TODO: Write our own ServiceMonitor for this :2112/metrics
+    serviceMonitor:
+      enabled: true
+      # -- Interval at which endpoints should be scraped.
+      interval: 30s
+      # -- Add custom labels to the ServiceMonitor resource
+      additionalLabels:
+        monitored-by: moonswitch-agent
+      # -- Chooses the metric’s labels on collisions with target labels.
+      honorLabels: false
+      # -- Path to scrape metrics
+      path: /metrics
+      # -- Timeout for scrape metrics request
+      scrapeTimeout: 10s
   resources:
     requests:
       cpu: 10m