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如何在 Istio 1.9 中设置单个网关和多个 VirtualService（每个都在不同的命名空间中）。我不能为每个虚拟服务设置一个网关，因为浏览器利用 HTTP/2连接重用来产生 404 错误。

如果我按照这些说明进行操作，它将无法工作，因为网关和虚拟服务不能位于不同的命名空间中。

这些是清单文件：

APP1：

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: app1-gateway
  namespace: app1
spec:
  selector:
    istio: ingressgateway # use istio default controller
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "app1.example.com"
    tls:
      httpsRedirect: true # sends 301 redirect for http requests
  - port:
      number: 443
      name: https-app1
      protocol: HTTPS
    tls:
      mode: SIMPLE
      credentialName: sslcertificate
    hosts:
    - "app1.example.com"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: app1
  namespace: app1
spec:
  hosts:
  - "app1.example.com"
  gateways:
  - app1-gateway
  http:
  - match:
    - uri:
        prefix: /
    route:
    - destination:
        host: app1
        port:
          number: 80

APP2：

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: app2-gateway
  namespace: app2
spec:
  selector:
    istio: ingressgateway # use istio default controller
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "app2.example.com"
    tls:
      httpsRedirect: true # sends 301 redirect for http requests
  - port:
      number: 443
      name: https-app2
      protocol: HTTPS
    tls:
      mode: SIMPLE
      credentialName: sslcertificate
    hosts:
    - "app2.example.com"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: app2
  namespace: app2
spec:
  hosts:
  - "app2.example.com"
  gateways:
  - app2-gateway
  http:
  - match:
    - uri:
        prefix: /
    route:
    - destination:
        host: app2
        port:
          number: 80
4

1 回答 1

2

要回答您的问题，because gateway and virtualservice can't be in different namespaces实际上它们可以位于不同的名称空间中。

如果它与虚拟服务不在同一个命名空间中，则只需在虚拟服务中指定该命名空间spec.gateways。

检查spec.gateways部分

apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: bookinfo-Mongo
  namespace: bookinfo-namespace
spec:
  gateways:
  - some-config-namespace/my-gateway # can omit the namespace if gateway is in same
                                       namespace as virtual service.

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: my-gateway
  namespace: some-config-namespace

有相关的 istio 文档。

于 2021-04-19T12:08:35.910 回答