第一个 Serving 用例 Hello world

1. 创建一个名为 service.yaml 的文件，文件内容如下

apiVersion: serving.knative.dev/v1 # Current version of Knative
kind: Service
metadata:
  name: helloworld-go # The name of the app
  namespace: default # The namespace the app will use
spec:
  template:
    spec:
      containers:
        - image: gcr.io/knative-samples/helloworld-go # Reference to the image of the app
          env:
            - name: TARGET # The environment variable printed out by the sample app
              value: "Go Sample v1"

2. 执行以下脚本

kubectl apply --filename service.yaml

查看 Knative 工作负载的命令

kubectl get ksvc helloworld-go

结果如下

NAME            URL                                                LATESTCREATED         LATESTREADY           READY   REASON
helloworld-go   http://helloworld-go.default.34.83.80.117.xip.io   helloworld-go-96dtk   helloworld-go-96dtk   True

你的环境里如果没有修改过默认域名，URL 这一列应该显示的是 http://helloworld-go.default.example.com

测试方式

istio gateway 的 external ip配置了 xip.io 的话, 其中 

# curl http://helloworld-go.default.34.83.80.117.xip.io
Hello World: Go Sample v1!

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