Istio Ingress on GKE

helmfile.yaml

repositories:
  - name: istio
    url: https://istio-release.storage.googleapis.com/charts
---
releases:
  - name: istio-ingressgateway
    chart: istio/gateway
    version: 1.17.1
    namespace: istio-system
    createNamespace: false

    values:
      - annotations:
          cloud.google.com/backend-config: '{"default": "istio-ingressgateway-config"}'
      - service:
          type: NodePort

ingress.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: istio-ingress
  namespace: istio-system
  annotations:
    kubernetes.io/ingress.class: gce
spec:
  rules:
    - http:
        paths:
          - path: /*
            pathType: ImplementationSpecific
            backend:
              service:
                name: istio-ingressgateway
                port:
                  number: 80
---
apiVersion: cloud.google.com/v1
kind: BackendConfig
metadata:
  name: istio-ingressgateway-config
  namespace: istio-system
spec:
  healthCheck:
    checkIntervalSec: 30
    port: 15021
    type: HTTP
    requestPath: /healthz/ready