k3s/cluster/addons/cluster-monitoring/stackdriver/heapster-controller.yaml

{% set base_metrics_memory = "140Mi" -%}
{% set base_metrics_cpu = "80m" -%}
{% set metrics_memory_per_node = 4 -%}
{% set metrics_cpu_per_node = 0.5 -%}
{% set num_nodes = pillar.get('num_nodes', -1) -%}
{% set nanny_memory = "90Mi" -%}
{% set nanny_memory_per_node = 200 -%}
{% if num_nodes >= 0 -%}
  {% set nanny_memory = (90 * 1024 + num_nodes * nanny_memory_per_node)|string + "Ki" -%}
{% endif -%}

apiVersion: v1
kind: ServiceAccount
metadata:
  name: heapster
  namespace: kube-system
  labels:
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: heapster-v1.4.0
  namespace: kube-system
  labels:
    k8s-app: heapster
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
    version: v1.4.0
spec:
  replicas: 1
  selector:
    matchLabels:
      k8s-app: heapster
      version: v1.4.0
  template:
    metadata:
      labels:
        k8s-app: heapster
        version: v1.4.0
      annotations:
        scheduler.alpha.kubernetes.io/critical-pod: ''
    spec:
      containers:
        - image: gcr.io/google_containers/heapster-amd64:v1.4.0
          name: heapster
          livenessProbe:
            httpGet:
              path: /healthz
              port: 8082
              scheme: HTTP
            initialDelaySeconds: 180
            timeoutSeconds: 5
          command:
            - /heapster
            - --source=kubernetes.summary_api:''
            - --sink=stackdriver
              # TODO: add --disable_export when it's merged into Heapster release
          volumeMounts:
            - name: ssl-certs
              mountPath: /etc/ssl/certs
              readOnly: true
            - name: usr-ca-certs
              mountPath: /usr/share/ca-certificates
              readOnly: true
        - image: gcr.io/google_containers/addon-resizer:1.7
          name: heapster-nanny
          resources:
            limits:
              cpu: 50m
              memory: {{ nanny_memory }}
            requests:
              cpu: 50m
              memory: {{ nanny_memory }}
          env:
            - name: MY_POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: MY_POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
          command:
            - /pod_nanny
            - --cpu={{ base_metrics_cpu }}
            - --extra-cpu={{ metrics_cpu_per_node }}m
            - --memory={{ base_metrics_memory }}
            - --extra-memory={{metrics_memory_per_node}}Mi
            - --threshold=5
            - --deployment=heapster-v1.4.0
            - --container=heapster
            - --poll-period=300000
            - --estimator=exponential
      volumes:
        - name: ssl-certs
          hostPath:
            path: "/etc/ssl/certs"
        - name: usr-ca-certs
          hostPath:
            path: "/usr/share/ca-certificates"
      serviceAccountName: heapster
      tolerations:
        - key: "CriticalAddonsOnly"
          operator: "Exists"