Question

我是kubernetes的新手，无法解决此问题。服务和pod正在运行，但我无法从邮递员那里得到回复。

kubectl获取服务

kubectl获得服务人员服务-o json

{
"apiVersion": "v1",
"kind": "Service",
"metadata": {
    "annotations": {
        "kubectl.kubernetes.io/last-applied-configuration": "{\"apiVersion\":\"v1\",\"kind\":\"Service\",\"metadata\":{\"annotations\":{},\"labels\":{\"app\":\"personservice\"},\"name\":\"personservice\",\"namespace\":\"default\"},\"spec\":{\"ports\":[{\"nodePort\":30001,\"port\":8080,\"protocol\":\"TCP\"}],\"selector\":{\"app\":\"personservice\"},\"type\":\"NodePort\"}}\n"
    },
    "creationTimestamp": "2019-11-07T11:22:04Z",
    "labels": {
        "app": "personservice"
    },
    "name": "personservice",
    "namespace": "default",
    "resourceVersion": "84920",
    "selfLink": "/api/v1/namespaces/default/services/personservice",
    "uid": "d32d4dd8-0150-11ea-80e6-00155d010311"
},
"spec": {
    "clusterIP": "10.98.168.74",
    "externalTrafficPolicy": "Cluster",
    "ports": [
        {
            "nodePort": 30001,
            "port": 8080,
            "protocol": "TCP",
            "targetPort": 8080
        }
    ],
    "selector": {
        "app": "personservice"
    },
    "sessionAffinity": "None",
    "type": "NodePort"
},
"status": {
    "loadBalancer": {}
}

}

kubectl获取广告连播

当我尝试使用邮递员打它

http://100.120.60.210:30001/getPerson?nino=12345Ac&id=1

我得到“连接到http://100.120.60.210:30001/getPerson?nino=12345Ac&id=1时出错。”

  IPv4 Address. . . . . . . . . . . : 100.120.60.210 --- Ip address of my laptop.

修改1： pod部署配置：

 apiVersion: apps/v1
kind: Deployment
metadata:
  name: personservice
  labels:
    app: personservice
spec:
  replicas: 1
  selector:
    matchLabels:
      app: personservice
  template:
    metadata:
      labels:
        app: personservice
    spec:
      containers:
      - name: personservice
        image: microservice-k8s/personmicroservice-k8s:1.0
        ports:
        - containerPort: 8080
        env:
        - name: PROFILE
          value: "dev" 
        - name: SERVER_PORT
          value: "8080"
        - name: ZIPKIN_URI
          value: "http://100.120.60.210:9411"

编辑2：

我已经部署了另一个Pod和服务进行测试，并且可以正常工作。为两个服务都运行此命令 kubectl获得服务人员服务-o json 我发现的唯一差异如下：

非工作服务

  "status": {
        "loadBalancer": {}
    }

工作服务：

 "status": {
        "loadBalancer": {
            "ingress": [
                {
                    "hostname": "localhost"
                }
            ]
        }
    }

空状态背后的原因是什么？

修改3：

端口转发到Pod并通过http://localhost:7000进行访问正在工作。

kubectl port-forward personservice-5c66cfcb89-dd6l7 7000:8080

这意味着仅服务有问题。

Answer 1

运行minikube tunnel以能够直接连接到ip。

Answer 2

我在稍微不同的情况下转载了您的案件。您正在使用带有Kubernetes的Docker桌面，而我决定使用Minikube进行复制。

我以您的yaml文件为基础来部署nginx服务，但我没有遇到您所描述的问题。这是我的部署：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: personservice
  labels:
    app: personservice
spec:
  replicas: 1
  selector:
    matchLabels:
      app: personservice
  template:
    metadata:
      labels:
        app: personservice
    spec:
      containers:
      - name: personservice
        image: nginx
        ports:
        - containerPort: 80

这是我的服务

apiVersion: v1
kind: Service
metadata:
  labels:
    app: personservice
  name: personservice
  namespace: default
spec:
  externalTrafficPolicy: Cluster
  ports:
  - nodePort: 30001
    port: 80
    protocol: TCP
    targetPort: 80
  selector:
    app: personservice
  sessionAffinity: None
  type: NodePort

注意：我仅出于方便起见使用端口80。

如您所见，这些yaml文件具有与您相同的组件，我可以成功curl我的nginx应用程序。

user@bf:~$ minikube ip
192.168.39.153
user@bf:~$ curl 192.168.122.36:30001
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>

我强烈建议您使用Minikube在其他环境中重现它。有许多advantages关于使用Minikube而不是Docker Desktop的信息。

无法使用kubernetes服务

2 个答案: