apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: '{{ template "gatekeeper.name" . }}'
    chart: '{{ template "gatekeeper.name" . }}'
    control-plane: controller-manager
    gatekeeper.sh/operation: webhook
    gatekeeper.sh/system: "yes"
    heritage: '{{ .Release.Service }}'
    release: '{{ .Release.Name }}'
  name: gatekeeper-controller-manager
  namespace: '{{ .Release.Namespace }}'
spec:
  replicas: {{ .Values.replicas }}
  selector:
    matchLabels:
      app: '{{ template "gatekeeper.name" . }}'
      chart: '{{ template "gatekeeper.name" . }}'
      control-plane: controller-manager
      gatekeeper.sh/operation: webhook
      gatekeeper.sh/system: "yes"
      heritage: '{{ .Release.Service }}'
      release: '{{ .Release.Name }}'
  template:
    metadata:
      annotations: 
{{- toYaml .Values.podAnnotations | trim | nindent 8 }}
      labels:
        app: '{{ template "gatekeeper.name" . }}'
        chart: '{{ template "gatekeeper.name" . }}'
        control-plane: controller-manager
        gatekeeper.sh/operation: webhook
        gatekeeper.sh/system: "yes"
        heritage: '{{ .Release.Service }}'
        release: '{{ .Release.Name }}'
    spec:
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: gatekeeper.sh/operation
                  operator: In
                  values:
                  - webhook
              topologyKey: kubernetes.io/hostname
            weight: 100
      containers:
      - args:
        - --port=8443
        - --logtostderr
        - --emit-admission-events={{ .Values.emitAdmissionEvents }}
        - --log-level={{ .Values.logLevel }}
        - --exempt-namespace=gatekeeper-system
        - --operation=webhook
        command:
        - /manager
        env:
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: metadata.namespace
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        image: '{{ template "system_default_registry" . }}{{ .Values.image.repository }}:{{ .Values.image.tag }}'
        imagePullPolicy: '{{ .Values.image.pullPolicy }}'
        livenessProbe:
          httpGet:
            path: /healthz
            port: 9090
        name: manager
        ports:
        - containerPort: 8443
          name: webhook-server
          protocol: TCP
        - containerPort: 8888
          name: metrics
          protocol: TCP
        - containerPort: 9090
          name: healthz
          protocol: TCP
        readinessProbe:
          httpGet:
            path: /readyz
            port: 9090
        resources: 
{{ toYaml .Values.controllerManager.resources | indent 10 }}
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          runAsGroup: 999
          runAsNonRoot: true
          runAsUser: 1000
        volumeMounts:
        - mountPath: /certs
          name: cert
          readOnly: true
      nodeSelector: 
{{ toYaml .Values.nodeSelector | indent 8 }}
      affinity:
{{ toYaml .Values.affinity | indent 8 }}
      tolerations:
{{ toYaml .Values.tolerations | indent 8 }}
      serviceAccountName: gatekeeper-admin
      terminationGracePeriodSeconds: 60
      volumes:
      - name: cert
        secret:
          defaultMode: 420
          secretName: gatekeeper-webhook-server-cert