customgateway.yaml

---
# Source: istio/charts/gateways/templates/serviceaccount.yaml

apiVersion: v1
kind: ServiceAccount
metadata:
  name: customgateway-service-account
  namespace: myproject
  labels:
    app: customgateway
---

---
# Source: istio/charts/gateways/templates/clusterrole.yaml

apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
  labels:
    app: gateways
  name: customgateway-myproject # myproject should replaced by actual namespace
rules:
- apiGroups: ["extensions"]
  resources: ["thirdpartyresources", "virtualservices", "destinationrules", "gateways"]
  verbs: ["get", "watch", "list", "update"]
---

---
# Source: istio/charts/gateways/templates/clusterrolebindings.yaml

apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: customgateway-myproject # myproject should replaced by actual namespace
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: customgateway-myproject # myproject should replaced by actual namespace
subjects:
  - kind: ServiceAccount
    name: customgateway-service-account
    namespace: myproject
---

---
# Source: istio/charts/gateways/templates/service.yaml

apiVersion: v1
kind: Service
metadata:
  name: customgateway
  namespace: myproject
  annotations:
  labels:
    istio: customgateway
spec:
  type: LoadBalancer
  selector:
    istio: customgateway
  ports:
    -
      name: http
      port: 80
      targetPort: 80
    -
      name: https
      port: 443
      targetPort: 443
---

---
# Source: istio/charts/gateways/templates/deployment.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: customgateway
  namespace: myproject
  labels:
    istio: customgateway
spec:
  replicas: 1
  template:
    metadata:
      labels:
        istio: customgateway
      annotations:
        sidecar.istio.io/inject: "false"
        scheduler.alpha.kubernetes.io/critical-pod: ""
    spec:
      serviceAccountName: customgateway-service-account
      containers:
        - name: istio-proxy
          image: "docker.io/istio/proxyv2:1.0.3""
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 80
            - containerPort: 443

          args:
          - proxy
          - router
          - -v
          - "2"
          - --discoveryRefreshDelay
          - '1s' #discoveryRefreshDelay
          - --drainDuration
          - '45s' #drainDuration
          - --parentShutdownDuration
          - '1m0s' #parentShutdownDuration
          - --connectTimeout
          - '10s' #connectTimeout
          - --serviceCluster
          - customgateway
          - --zipkinAddress
          - zipkin.istio-system:9411
          - --proxyAdminPort
          - "15000"
          - --controlPlaneAuthPolicy
          - NONE
          - --discoveryAddress
          - istio-pilot.istio-system:8080
          resources:
            requests:
              cpu: 10m

          env:
          - name: POD_NAME
            valueFrom:
              fieldRef:
                apiVersion: v1
                fieldPath: metadata.name
          - name: POD_NAMESPACE
            valueFrom:
              fieldRef:
                apiVersion: v1
                fieldPath: metadata.namespace
          - name: INSTANCE_IP
            valueFrom:
              fieldRef:
                apiVersion: v1
                fieldPath: status.podIP
          - name: ISTIO_META_POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          volumeMounts:
          - name: istio-certs
            mountPath: /etc/certs
            readOnly: true
          - name: customgateway-certs
            mountPath: "/etc/istio/customgateway-certs"
            readOnly: true
          - name: customgateway-ca-certs
            mountPath: "/etc/istio/customgateway-ca-certs"
            readOnly: true
      volumes:
      - name: istio-certs
        secret:
          secretName: istio.customgateway-service-account
          optional: true
      - name: customgateway-certs
        secret:
          secretName: "istio-customgateway-certs"
          optional: true
      - name: customgateway-ca-certs
        secret:
          secretName: "istio-customgateway-ca-certs"
          optional: true
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: beta.kubernetes.io/arch
                operator: In
                values:
                - amd64
                - ppc64le
                - s390x
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 2
            preference:
              matchExpressions:
              - key: beta.kubernetes.io/arch
                operator: In
                values:
                - amd64
          - weight: 2
            preference:
              matchExpressions:
              - key: beta.kubernetes.io/arch
                operator: In
                values:
                - ppc64le
          - weight: 2
            preference:
              matchExpressions:
              - key: beta.kubernetes.io/arch
                operator: In
                values:
                - s390x
---

---
# Source: istio/charts/gateways/templates/autoscale.yaml

apiVersion: autoscaling/v2beta1
kind: HorizontalPodAutoscaler
metadata:
    name: customgateway
    namespace: myproject
spec:
    maxReplicas: 5
    minReplicas: 1
    scaleTargetRef:
      apiVersion: apps/v1beta1
      kind: Deployment
      name: customgateway
    metrics:
    - type: Resource
      resource:
        name: cpu
        targetAverageUtilization: 80
---