kind"gateway“和"virtualservice”没有匹配

Question

我使用的是Docker Desktop版本3.6.0，其中包含Kubernetes 1.21.3。

我将按照本教程开始使用Istio

https://istio.io/latest/docs/setup/getting-started/

Istio已按照说明正确安装。

现在，每当我尝试应用Istio配置时

通过发出命令kubectl apply -f samples/bookinfo/networking/bookinfo-gateway.yaml。

我得到以下错误

unable to recognize "samples/bookinfo/networking/bookinfo-gateway.yaml": no matches for kind "Gateway" in version "networking.istio.io/v1alpha3"
unable to recognize "samples/bookinfo/networking/bookinfo-gateway.yaml": no matches for kind "VirtualService" in version "networking.istio.io/v1alpha3"

我上网查了一下，发现网关和VirtualService资源都不见了。

如果执行kubectl get crd，则找不到任何资源

bookinfo-gatway.yaml的内容

    apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: bookinfo-gateway
spec:
  selector:
    istio: ingressgateway # use istio default controller
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "*"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: bookinfo
spec:
  hosts:
  - "*"
  gateways:
  - bookinfo-gateway
  http:
  - match:
    - uri:
        exact: /productpage
    - uri:
        prefix: /static
    - uri:
        exact: /login
    - uri:
        exact: /logout
    - uri:
        prefix: /api/v1/products
    route:
    - destination:
        host: productpage
        port:
          number: 9080

Answer 1

istio的CRD应该作为istioctl安装过程的一部分进行安装，如果您没有可用的CRD，我建议您重新运行安装。

>>> ~/.istioctl/bin/istioctl install --set profile=demo -y
✔ Istio core installed
✔ Istiod installed
✔ Egress gateways installed
✔ Ingress gateways installed
✔ Installation complete

kubectl get po -n istio-system应该如下所示

>>> kubectl get po -n istio-system
NAME                                   READY   STATUS    RESTARTS   AGE
istio-egressgateway-7ddb45fcdf-ctnp5   1/1     Running   0          3m20s
istio-ingressgateway-f7cdcd7dc-zdqhg   1/1     Running   0          3m20s
istiod-788ff675dd-9p75l                1/1     Running   0          3m32s

否则，您的初始安装就会在某个地方出错。