apps: cluster1: kubernetes-dashboard: Scale to zero.

kitnil · Oct 19, 2023 · da6fe0b · da6fe0b
1 parent 0d863c9
commit da6fe0b
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diff --git a/apps/cluster1/kubernetes-dashboard/httpscaledobject.yaml b/apps/cluster1/kubernetes-dashboard/httpscaledobject.yaml
@@ -0,0 +1,16 @@
+kind: HTTPScaledObject
+apiVersion: http.keda.sh/v1alpha1
+metadata:
+  name: kubernetes-dashboard-web
+spec:
+  host: kubernetes-dashboard.home.wugi.info
+  # Optional. Default: 300 seconds.
+  # Should be smaller than kubernetes-dashboard-web-scaledobject.
+  scaledownPeriod: 150
+  scaleTargetRef:
+    deployment: kubernetes-dashboard-web
+    service: kubernetes-dashboard-web
+    port: 8000
+  replicas:
+    min: 0
+    max: 1
diff --git a/apps/cluster1/kubernetes-dashboard/kustomization.yaml b/apps/cluster1/kubernetes-dashboard/kustomization.yaml
@@ -3,6 +3,8 @@ kind: Kustomization
 namespace: kubernetes-dashboard
 resources:
 - ../../base/kubernetes-dashboard
+- scaledobject.yaml
+- httpscaledobject.yaml
 patchesStrategicMerge:
 - release.yaml
 configMapGenerator:

diff --git a/apps/cluster1/kubernetes-dashboard/scaledobject.yaml b/apps/cluster1/kubernetes-dashboard/scaledobject.yaml
@@ -0,0 +1,38 @@
+---
+apiVersion: keda.sh/v1alpha1
+kind: ScaledObject
+metadata:
+  name: kubernetes-dashboard-web-scaledobject
+spec:
+  maxReplicaCount: 1
+  minReplicaCount: 0
+  pollingInterval: 3 # Optional. Default: 30 seconds
+  cooldownPeriod: 300 # Optional. Default: 300 seconds
+  scaleTargetRef:
+    name: kubernetes-dashboard-web
+  triggers:
+  - type: prometheus
+    metadata:
+      serverAddress: http://kube-prometheus-stack-prometheus.monitoring:9090
+      metricName: nginx_ingress_controller_request_duration_seconds_count
+      threshold: "0.5"
+      query: max(irate(nginx_ingress_controller_request_duration_seconds_count{host="kubernetes-dashboard.home.wugi.info"}[5m]))
+---
+apiVersion: keda.sh/v1alpha1
+kind: ScaledObject
+metadata:
+  name: kubernetes-dashboard-api-scaledobject
+spec:
+  maxReplicaCount: 1
+  minReplicaCount: 0
+  pollingInterval: 3 # Optional. Default: 30 seconds
+  cooldownPeriod: 300 # Optional. Default: 300 seconds
+  scaleTargetRef:
+    name: kubernetes-dashboard-api
+  triggers:
+  - type: prometheus
+    metadata:
+      serverAddress: http://kube-prometheus-stack-prometheus.monitoring:9090
+      metricName: nginx_ingress_controller_request_duration_seconds_count
+      threshold: "0.5"
+      query: max(irate(nginx_ingress_controller_request_duration_seconds_count{host="kubernetes-dashboard.home.wugi.info"}[5m]))
diff --git a/apps/cluster1/kubernetes-dashboard/values.yaml b/apps/cluster1/kubernetes-dashboard/values.yaml
@@ -1,6 +1,8 @@
 # General configuration shared across resources
 app:
   ingress:
+    labels:
+      keda.cluster.local/scale-to-zero: "true"
     hosts:
     - kubernetes-dashboard.home.wugi.info
   settings: