kubernetes - 如何配置 Istio 虚拟服务目标协议(protocol)

Question

如何配置 Istio VirtualService 以将流量路由到监听 HTTPS 的目标后端？

配置 protocol: HTTPS 或 scheme: HTTPS 无效。

apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: api-rpi-access
spec:
  hosts:
  - "test.example.com"
  gateways:
  - api-gateway
  http:
  - match:
    - uri:
        port: https
        prefix: /
    route:
    - destination:
        host: some-https-service
        port:
          number: 8443
          protocol: HTTPS
        # scheme: HTTPS

这是我的网关:

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: api-gateway
spec:
  selector:
    istio: ingressgateway
  servers:
  - port:
      number: 443
      name: https
      protocol: HTTPS
    tls:
      mode: SIMPLE
      serverCertificate: /etc/istio/ingressgateway-certs/tls.crt
      privateKey: /etc/istio/ingressgateway-certs/tls.key
    hosts:
    - "test.example.com"

Answer 1

为了在 istio ingressgateway 上执行 LTS 终止并将 https 流量发送到后端，我必须添加以下 DestinationRule

apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: some-https-service
spec:
  host: diary
  trafficPolicy:
    tls:
      mode: SIMPLE

这是网关和虚拟服务:

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: api-gateway
spec:
  selector:
    istio: ingressgateway
  servers:
  - port:
      number: 443
      name: https
      protocol: HTTPS
    tls:
      mode: SIMPLE
      serverCertificate: /etc/istio/ingressgateway-certs/tls.crt
      privateKey: /etc/istio/ingressgateway-certs/tls.key
    hosts:
    - "test.example.com"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: ext-access
spec:
  hosts:
  - "test.example.com"
  gateways:
  - api-gateway
  http:
  - match:
    - uri:
        port: https
        prefix: /
    route:
    - destination:
        host: some-https-service
        port:
          number: 8443