apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: nginx-ingress-controller
  namespace: ingress
spec:
  updateStrategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1
  selector:
    matchLabels:
      name: nginx-ingress-controller
      phase: prod
  template:
    metadata:
      labels:
        name: nginx-ingress-controller
        phase: prod
      annotations:
        seccomp.security.alpha.kubernetes.io/pod: 'docker/default'
    spec:
      containers:
        - name: nginx-ingress-controller
          image: k8s.gcr.io/ingress-nginx/controller:v0.35.0
          args:
            - /nginx-ingress-controller
            - --ingress-class=public
          # use downward API
          env:
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
          ports:
            - name: http
              containerPort: 80
              hostPort: 80
            - name: https
              containerPort: 443
              hostPort: 443
            - name: health
              containerPort: 10254
              hostPort: 10254
          livenessProbe:
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            initialDelaySeconds: 10
            periodSeconds: 10
            successThreshold: 1
            failureThreshold: 3
            timeoutSeconds: 5
          readinessProbe:
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            periodSeconds: 10
            successThreshold: 1
            failureThreshold: 3
            timeoutSeconds: 5
          lifecycle:
            preStop:
              exec:
                command:
                  - /wait-shutdown
          securityContext:
            capabilities:
              add:
              - NET_BIND_SERVICE
              drop:
              - ALL
            runAsUser: 101 # www-data
      restartPolicy: Always
      terminationGracePeriodSeconds: 300