一个简单的 HTTP 请求和响应服务——httpbin

1. 拉取镜像
   docker pull kennethreitz/httpbin:latest

2. 查看本地是否存在存在镜像
   docker images | grep kennethreitz/httpbin:latest

3. 创建 deployment，指定镜像

   apiVersion: apps/v1
   kind: Deployment
   metadata:
     labels:
       app: httpbin
     name: mm-httpbin
     namespace: mm-test
   spec:
     replicas: 1
     selector:
       matchLabels:
         app: httpbin
     template:
       metadata:
         labels:
           app: httpbin
       spec:
         containers:
           - name: mm-httpbin
             image: kennethreitz/httpbin:latest
             resources:
               limits:
                 cpu: "1"
                 memory: 1Gi
               requests:
                 cpu: 200m
                 memory: 256Mi
   

4. 创建 service，关联 pod

   apiVersion: v1
   kind: Service
   metadata:
     labels:
       app: httpbin
     name: mm-httpbin
     namespace: mm-test
   spec:
     selector:
       app: httpbin
     type: ClusterIP
     ports:
     - name: "18888"
       port: 18888
       targetPort: 80
       protocol: TCP
   

5. 修改 service 的类型为 NodePort
kubectl -n mm-test edit svc mm-httpbin

6. 查看 service 的 nodeport 端口号，并通过 cmd、浏览器或 postman 测试
   

• cmd 测试
  马赛克为 k8s 集群任一节点的 ip（具体搜索 k8s service nodeport 作用）
  
• 浏览器测试
  
• postman 测试
  

具体 yml 文件资源下载：https://download.csdn.net/download/qq_44140067/88651208