apiVersion: apps/v1
kind: Deployment
metadata:
  name: metrics-server
  namespace: {{ .Release.Namespace }}
  labels:
    k8s-app: metrics-server
    app.kubernetes.io/name: metrics-server
    app.kubernetes.io/instance: {{ .Release.Name }}
spec:
  replicas: 1
  revisionHistoryLimit: 10
  strategy:
    rollingUpdate:
      maxUnavailable: 0
    type: RollingUpdate
  selector:
    matchLabels:
      k8s-app: metrics-server
  template:
    metadata:
      labels:
        k8s-app: metrics-server
        app.kubernetes.io/name: metrics-server
        app.kubernetes.io/instance: {{ .Release.Name }}
    spec:
      serviceAccountName: metrics-server
      priorityClassName: system-cluster-critical
      nodeSelector:
        kubernetes.io/os: linux
      containers:
        - name: metrics-server
          image: {{ printf "%s:v%s" .Values.image.repository .Chart.AppVersion | quote }}
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          args:
            - --cert-dir=/tmp
            - --secure-port=10250
            - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
            - --kubelet-use-node-status-port
            - --metric-resolution=15s
            {{- if .Values.kubeletInsecureTls }}
            - --kubelet-insecure-tls
            {{- end }}
          ports:
            - name: https
              containerPort: 10250
              protocol: TCP
          livenessProbe:
            httpGet:
              path: /livez
              port: https
              scheme: HTTPS
            periodSeconds: 10
            timeoutSeconds: 1
            failureThreshold: 3
          readinessProbe:
            httpGet:
              path: /readyz
              port: https
              scheme: HTTPS
            initialDelaySeconds: 20
            periodSeconds: 10
            timeoutSeconds: 1
            failureThreshold: 3
          resources:
            requests:
              cpu: 100m
              memory: 200Mi
          securityContext:
            allowPrivilegeEscalation: false
            capabilities:
              drop: [ALL]
            readOnlyRootFilesystem: true
            runAsNonRoot: true
            runAsUser: 1000
            seccompProfile:
              type: RuntimeDefault
          volumeMounts:
            - name: tmp-dir
              mountPath: /tmp
      volumes:
        - name: tmp-dir
          emptyDir: {}