带有自定义证书的 Istio 出口网关 HANDSHAKE_FAILURE_ON_CLIENT_HELLO

Question

我们想要实现的是通过出口网关将网格流量指向外部服务。

我们尝试了几次迭代，现在尝试在中间使用一个出口网关。

外部服务正在使用我们的证书运行。

网格 > Egressgateway > 外部服务。

网关上的错误是：

[2020-08-21T14:52:37.523Z] "GET / HTTP/1.1" 503 UF,URX "-" "TLS error: 268436496:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE 268435610:SSL routines:OPENSSL_internal:HANDSHAKE_FAILURE_ON_CLIENT_HELLO" 0 91 62 - "10.32.64.16" "curl/7.61.1" "f57b76e9-99b1-43bd-8905-1226ab2c7e69" "<vm-name>.europe-west1-b.c.<google-project-name>.internal" "10.32.3.207:8123" outbound|8123|notebook-ext|<vm-name>.europe-west1-b.c.<google-project-name>.internal - 10.32.65.2:8123 10.32.64.16:54912 <vm-name>.europe-west1-b.c.<google-project-name>.internal -

Yamls：

apiVersion: networking.istio.io/v1alpha3
kind: ServiceEntry
metadata:
  name: notebook
  namespace: istio-system
spec:
  hosts:
  - <vm-name>.europe-west1-b.c.<google-project-name>.internal
  ports:
  - number: 80
    name: http-port-for-tls-origination
    protocol: http
  - number: 8123
    name: https
    protocol: HTTPS
  resolution: DNS
---
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: istio-egressgateway-notebook
  namespace: istio-system
spec:
  selector:
    istio: egressgateway
  servers:
  - port:
      number: 80
      name: http-port-for-tls-origination
      protocol: HTTP
    hosts:
    - <vm-name>.europe-west1-b.c.<google-project-name>.internal
  - port:
      number: 8123
      name: https
      protocol: HTTPS
    hosts:
    - <vm-name>.europe-west1-b.c.<google-project-name>.internal
    tls:
      mode: MUTUAL
      serverCertificate: /temp-certs/cert-chain.pem
      privateKey: /temp-certs/key.pem
      caCertificates: /temp-certs/root-cert.pem
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: egressgateway-for-notebook
  namespace: istio-system
spec:
  host: istio-egressgateway.istio-system.svc.cluster.local
  subsets:
  - name: notebook
    trafficPolicy:
      loadBalancer:
        simple: ROUND_ROBIN
      portLevelSettings:
      - port:
          number: 8123
        tls:
          mode: ISTIO_MUTUAL
          sni: <vm-name>.europe-west1-b.c.<google-project-name>.internal
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: direct-notebook-through-egress
  namespace: istio-system
spec:
  hosts:
  - <vm-name>.europe-west1-b.c.<google-project-name>.internal
  gateways:
  - mesh
  - istio-egressgateway-notebook
  http:
  - match:
    - gateways:
      - mesh
      port: 80
      sniHosts:
      - <vm-name>.europe-west1-b.c.<google-project-name>.internal
    route:
    - destination:
        host: istio-egressgateway.istio-system.svc.cluster.local
        subset: notebook
        port:
          number: 8123
  - match:
    - gateways:
      - istio-egressgateway-notebook
      port: 8123
      sniHosts:
      - <vm-name>.europe-west1-b.c.<google-project-name>.internal
    route:
    - destination:
        host: <vm-name>.europe-west1-b.c.<google-project-name>.internal
        subset: notebook-ext
        port:
          number: 8123
        weight: 100
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: notebook
  namespace: istio-system
spec:
  #exportTo: ["."]
  host: <vm-name>.europe-west1-b.c.<google-project-name>.internal
  subsets:
  - name: notebook-ext  
  trafficPolicy:
    loadBalancer:
      simple: ROUND_ROBIN
    portLevelSettings:
    - port:
        number: 8123
      tls:
        mode: SIMPLE
        sni: <vm-name>.europe-west1-b.c.<google-project-name>.internal
        serverCertificate: /temp-certs/cert-chain.pem
        privateKey: /temp-certs/key.pem
        caCertificates: /temp-certs/root-cert.pem

这样做的最终目标是在网格中通过 http 提供某些东西，这些东西将通过 egressgateway 传输，TLS 将从那里发起。这是因为我们希望通过 egressgateway 将来自公共 ingressgateway 的流量引导回网格外部服务。要拥有 HTTPS

上述证书存在于出口网关 pod 中，具体如下：

如果我在 egressgateway pod 中执行，curl https://<vm-name>.europe-west1-b.c.<google-project-name>.internal:8123 --cacert /temp-certs/root-cert.pem -v我会得到来自外部 VM 的响应。

你知道为什么会发生这种情况吗？