[prometheus-blackbox-exporter] Add Vertical Pod Autoscaler to Prometh…

…eus Blackbox Exporter (prometheus-community#3578) * fix: allow minReplicas to be set for VPA Signed-off-by: t3mi <[email protected]> * feat: add support for controlledValues Signed-off-by: t3mi <[email protected]> * fix: disable vpa by default Signed-off-by: t3mi <[email protected]> --------- Signed-off-by: t3mi <[email protected]>
giffgaff · Aug 25, 2023 · f4b0c3f · f4b0c3f
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diff --git a/charts/prometheus-blackbox-exporter/Chart.yaml b/charts/prometheus-blackbox-exporter/Chart.yaml
@@ -1,7 +1,7 @@
 apiVersion: v2
 description: Prometheus Blackbox Exporter
 name: prometheus-blackbox-exporter
-version: 8.0.0
+version: 8.1.0
 appVersion: v0.24.0
 home: https://github.com/prometheus/blackbox_exporter
 sources:

diff --git a/charts/prometheus-blackbox-exporter/templates/verticalpodautoscaler.yaml b/charts/prometheus-blackbox-exporter/templates/verticalpodautoscaler.yaml
@@ -0,0 +1,39 @@
+{{- if and (.Capabilities.APIVersions.Has "autoscaling.k8s.io/v1") (.Values.verticalPodAutoscaler.enabled) }}
+apiVersion: autoscaling.k8s.io/v1
+kind: VerticalPodAutoscaler
+metadata:
+  name: {{ include "prometheus-blackbox-exporter.fullname" . }}
+  namespace: {{ template "prometheus-blackbox-exporter.namespace" . }}
+  labels:
+    {{- include "prometheus-blackbox-exporter.labels" . | nindent 4 }}
+spec:
+  resourcePolicy:
+    containerPolicies:
+    - containerName: blackbox-exporter
+      {{- if .Values.verticalPodAutoscaler.controlledResources }}
+      controlledResources: {{ .Values.verticalPodAutoscaler.controlledResources }}
+      {{- end }}
+      {{- if .Values.verticalPodAutoscaler.controlledValues }}
+      controlledValues: {{ .Values.verticalPodAutoscaler.controlledValues }}
+      {{- end }}
+      {{- if .Values.verticalPodAutoscaler.maxAllowed }}
+      maxAllowed:
+        {{ toYaml .Values.verticalPodAutoscaler.maxAllowed | nindent 8 }}
+      {{- end }}
+      {{- if .Values.verticalPodAutoscaler.minAllowed }}
+      minAllowed:
+        {{ toYaml .Values.verticalPodAutoscaler.minAllowed | nindent 8 }}
+      {{- end }}
+  targetRef:
+    apiVersion: apps/v1
+    {{- if (eq .Values.kind "DaemonSet") }}
+    kind: DaemonSet
+    {{- else }}
+    kind: Deployment
+    {{- end }}
+    name:  {{ template "prometheus-blackbox-exporter.fullname" . }}
+  {{- with .Values.verticalPodAutoscaler.updatePolicy }}
+  updatePolicy:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}
diff --git a/charts/prometheus-blackbox-exporter/values.yaml b/charts/prometheus-blackbox-exporter/values.yaml
@@ -319,3 +319,27 @@ extraManifests: []
 
 # global common labels, applied to all ressources
 commonLabels: {}
+
+# Enable vertical pod autoscaler support for prometheus-blackbox-exporter
+verticalPodAutoscaler:
+  enabled: false
+  # List of resources that the vertical pod autoscaler can control. Defaults to cpu and memory
+  controlledResources: []
+  # Specifies which resource values should be controlled: RequestsOnly or RequestsAndLimits.
+  # controlledValues: RequestsAndLimits
+
+  # Define the max allowed resources for the pod
+  maxAllowed: {}
+  # cpu: 200m
+  # memory: 100Mi
+  # Define the min allowed resources for the pod
+  minAllowed: {}
+  # cpu: 200m
+  # memory: 100Mi
+
+  updatePolicy:
+    # Specifies minimal number of replicas which need to be alive for VPA Updater to attempt pod eviction
+    # minReplicas: 1
+    # Specifies whether recommended updates are applied when a Pod is started and whether recommended updates
+    # are applied during the life of a Pod. Possible values are "Off", "Initial", "Recreate", and "Auto".
+    updateMode: Auto