Merge pull request #200 from WIZARD-CXY/autoscaler

add autoscaler for kube-state-metrics

Author: brancz

kubernetes/kube-state-metrics-cluster-role.yaml

@@ -28,4 +28,3 @@ rules:
   - cronjobs
   - jobs
   verbs: ["list", "watch"]
-

kubernetes/kube-state-metrics-deployment.yaml

@@ -4,7 +4,7 @@ metadata:
   name: kube-state-metrics
   namespace: kube-system
 spec:
-  replicas: 2
+  replicas: 1
   template:
     metadata:
       labels:
@@ -30,4 +30,30 @@ spec:
           limits:
             memory: 50Mi
             cpu: 200m
-
+      - name: addon-resizer
+        image: gcr.io/google_containers/addon-resizer:1.0
+        resources:
+          limits:
+            cpu: 100m
+            memory: 30Mi
+          requests:
+            cpu: 100m
+            memory: 30Mi
+        env:
+          - name: MY_POD_NAME
+            valueFrom:
+              fieldRef:
+                fieldPath: metadata.name
+          - name: MY_POD_NAMESPACE
+            valueFrom:
+              fieldRef:
+                fieldPath: metadata.namespace
+        command:
+          - /pod_nanny
+          - --container=kube-state-metrics
+          - --cpu=100m
+          - --extra-cpu=1m
+          - --memory=30Mi
+          - --extra-memory=2Mi
+          - --threshold=5
+          - --deployment=kube-state-metrics

kubernetes/kube-state-metrics-role-binding.yaml

@@ -0,0 +1,14 @@
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: RoleBinding
+metadata:
+  name: kube-state-metrics
+  namespace: kube-system
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: kube-state-metrics-resizer
+subjects:
+- kind: ServiceAccount
+  name: kube-state-metrics
+  namespace: kube-system
+

kubernetes/kube-state-metrics-role.yaml

@@ -0,0 +1,16 @@
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: Role
+metadata:
+  namespace: kube-system
+  name: kube-state-metrics-resizer
+rules:
+- apiGroups: [""]
+  resources:
+  - pods
+  verbs: ["get"]
+- apiGroups: ["extensions"]
+  resources:
+  - deployments
+  resourceNames: ["kube-state-metrics"]
+  verbs: ["get", "update"]
+