sample hpa

deploy/Makefile

@@ -7,7 +7,7 @@ delete-adapter-local:
 	kubectl delete -f manifests/
 
 namespace:
-	kubectl create -f addepar/custom-metrics-namespace.json
+	kubectl create namespace custom-metrics
 
 raw:
 	kubectl get --raw /apis/custom.metrics.k8s.io/v1beta1

deploy/addepar/custom-metrics-namespace.json

@@ -1,10 +0,0 @@
-{
-  "apiVersion": "v1",
-  "kind": "Namespace",
-  "metadata": {
-    "name": "custom-metrics",
-    "labels": {
-      "name": "custom-metrics"
-    }
-  }
-}

deploy/addepar/prometheus/Makefile

@@ -0,0 +1,5 @@
+deploy:
+	kubectl create -n prom -f prometheus.yaml
+
+namespace:
+	kubectl create namespace prom

deploy/addepar/prometheus/prometheus.yaml

@@ -0,0 +1,63 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: prometheus
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  name: prometheus
+rules:
+  - apiGroups: [""]
+    resources:
+      - nodes
+      - services
+      - endpoints
+      - pods
+    verbs: ["get", "list", "watch"]
+  - apiGroups: [""]
+    resources:
+      - configmaps
+    verbs: ["get"]
+  - nonResourceURLs: ["/metrics"]
+    verbs: ["get"]
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRoleBinding
+metadata:
+  name: prometheus
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: prometheus
+subjects:
+  - kind: ServiceAccount
+    name: prometheus
+    namespace: prom
+---
+apiVersion: monitoring.coreos.com/v1
+kind: Prometheus
+metadata:
+  name: prometheus
+spec:
+  # Match all service monitors in all namespaces
+  serviceMonitorNamespaceSelector: {}
+  serviceMonitorSelector: {}
+  resources:
+    requests:
+      memory: 400Mi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: prometheus
+spec:
+  type: NodePort
+  ports:
+    - name: web
+      nodePort: 30900
+      port: 9090
+      protocol: TCP
+      targetPort: web
+  selector:
+    prometheus: prometheus

deploy/addepar/sample-hpa/Makefile

@@ -0,0 +1,25 @@
+sample-app:
+	kubectl create -n default -f sample-app.deploy.yaml
+	kubectl create -n default -f sample-app.service.yaml
+
+delete-sample-app:
+	kubectl delete -n default -f sample-app.deploy.yaml
+	kubectl delete -n default -f sample-app.service.yaml
+
+monitor:
+	kubectl create -n default -f service-monitor.yaml
+
+hpa:
+	kubectl delete -f sample-app.hpa.yaml
+	kubectl create -f sample-app.hpa.yaml
+
+test:
+	kubectl get --raw "/apis/custom.metrics.k8s.io/v1beta1/namespaces/default/pods/*/http_requests?selector=app%3Dsample-app"
+
+get-ip:
+	kubectl get service sample-app -o jsonpath='{ .spec.clusterIP }'
+
+busybox:
+	# run wget -qO- IP_ADDRESS
+	kubectl run -it --rm --restart=Never busybox --image=gcr.io/google-containers/busybox sh
+

deploy/addepar/sample-hpa/sample-app.deploy.yaml

@@ -0,0 +1,22 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: sample-app
+  labels:
+    app: sample-app
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: sample-app
+  template:
+    metadata:
+      labels:
+        app: sample-app
+    spec:
+      containers:
+        - image: luxas/autoscale-demo:v0.1.2
+          name: metrics-provider
+          ports:
+            - name: http
+              containerPort: 8080

deploy/addepar/sample-hpa/sample-app.hpa.yaml

@@ -0,0 +1,24 @@
+kind: HorizontalPodAutoscaler
+apiVersion: autoscaling/v2beta1
+metadata:
+  name: sample-app
+spec:
+  scaleTargetRef:
+    # point the HPA at the sample application
+    # you created above
+    apiVersion: apps/v1
+    kind: Deployment
+    name: sample-app
+  # autoscale between 1 and 10 replicas
+  minReplicas: 1
+  maxReplicas: 10
+  metrics:
+    # use a "Pods" metric, which takes the average of the
+    # given metric across all pods controlled by the autoscaling target
+    - type: Pods
+      pods:
+        # use the metric that you used above: pods/http_requests
+        metricName: http_requests
+        # target 500 milli-requests per second,
+        # which is 1 request every two seconds
+        targetAverageValue: 20m

deploy/addepar/sample-hpa/sample-app.service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: sample-app
+  name: sample-app
+spec:
+  ports:
+    - name: http
+      port: 80
+      protocol: TCP
+      targetPort: 8080
+  selector:
+    app: sample-app
+  type: ClusterIP

deploy/addepar/sample-hpa/service-monitor.yaml

@@ -0,0 +1,12 @@
+kind: ServiceMonitor
+apiVersion: monitoring.coreos.com/v1
+metadata:
+  name: sample-app
+  labels:
+    app: sample-app
+spec:
+  selector:
+    matchLabels:
+      app: sample-app
+  endpoints:
+    - port: http