POD + 服务 Kubernetes Hoverfly

Question

我正在尝试在 k8s 集群上部署此配置：

apiVersion: v1
kind: ConfigMap
metadata:
  name: simulations-test
  labels: 
    mock-services: "true"
data:
  simulations-test.json: |
    {
      "data":{
          "pairs":[
            {
                "request":{
                  "path":[
                      {
                        "matcher":"glob",
                        "value":"*/b2io60000082"
                      }
                  ]
                },
                "response":{
                  "status":200,
                  "body":"...",
                  "encodedBody":false,
                  "headers":{
                      "Content-Type":[
                        "application/json"
                      ]
                  }
                },
                "templated":false
            },
            {
                "request":{
                  "path":[
                      {
                        "matcher":"glob",
                        "value":"*/b2io60000080"
                      }
                  ]
                },
                "response":{
                  "status":404,
                  "body":"",
                  "encodedBody":false,
                  "headers":{
                      "Content-Type":[
                        "text/plain"
                      ]
                  }
                },
                "templated":false
            }
          ]
      },
      "meta":{
          "schemaVersion":"v5",
          "hoverflyVersion":"v1.0.0"
      }
    }

---

apiVersion: v1
kind: Pod
metadata:
  name: test-mock
  labels:
    mock-services: "test"
spec:
  containers:
  - name: test-mock
    image: spectolabs/hoverfly:latest
    volumeMounts:
    - mountPath: /simulations/
      name: simulations-test
    command: ["hoverfly", "-webserver", "-import", "/simulations/simulations-test.json"]
  volumes:
  - name: simulations-test
    configMap:
      name: simulations-test

---

apiVersion: v1
kind: Service
metadata:
  labels:
  name: test-mock-service
spec:
  ports:
    - name: "admin"
      port: 8888
      protocol: TCP
      targetPort: 8888
    - name: "proxy"
      protocol: TCP
      port: 8500
      targetPort: 8500
  selector:
    mock-service: "test"

当我运行这个：

kubectl apply -f mock-service.yaml -n mock

结果：

configmap/simulations-test created
pod/test-mock created
service/test-mock-service created

但是当我尝试使用 http://test-mock-service.mock.svc.cluster.local:8500/b2io60000082 访问该服务时，即使在 POD 内，我也被拒绝连接！

我在 pod 里面运行:

/ # netstat -tulpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:8500          0.0.0.0:*               LISTEN      1/hoverfly
tcp        0      0 127.0.0.1:8888          0.0.0.0:*               LISTEN      1/hoverfly

我也尝试进行部署，结果相同。

TKS！

更新#1

当我尝试进行端口转发时，它起作用了：

k port-forward test-mock 8888:8888 8500:8500 -n mock

结果：

Forwarding from 127.0.0.1:8888 -> 8888
Forwarding from [::1]:8888 -> 8888
Forwarding from 127.0.0.1:8500 -> 8500
Forwarding from [::1]:8500 -> 8500
Handling connection for 8500
Handling connection for 8500

Answer 1

由于您在服务中有 targetPort: 8500，因此 pod 内的容器需要侦听端口 8500。

service 中的标签是 mock-service: test 但在 pod 中是 mock-services: true。他们需要匹配。

apiVersion: v1
kind: Pod
metadata:
  name: test-mock
  labels:
    mock-services: "test"
spec:
  containers:
  - name: test-mock
    image: spectolabs/hoverfly:latest
    ports:
    - containerPort: 8500
    volumeMounts:
    - mountPath: /simulations/
      name: simulations-test
    command: ["hoverfly", "-webserver", "-import", "/simulations/simulations-test.json"]
  volumes:
  - name: simulations-test
    configMap:
      name: simulations-test

还要确保应用正在侦听 0.0.0.0。而不是 127.0.0.1

POD + 服务 Kubernetes Hoverfly

POD + Service Kubernetes Hoverfly

docker

kubernetes

hoverfly