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kubernetes - K8:无法使用Nginx反向代理连接Pod

转载 作者：行者123 更新时间：2023-12-02 11:42:16 27 4
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我是Kubernetes的新手，我正在尝试在内部计算服务系统中使用Kubernetes托管应用程序。
由于我们的内部计算服务不支持rewrite-target批注，因此我必须使用反向代理来处理重写。
因此，我的流程是:
VIP->服务-> Pod [已重写nginx的Sidecar]-> Pod [应用程序容器]
这是 list :

# Source: reportportal/templates/gateway-ingress.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: reportportal-gateway-ingress
  labels:     
    heritage: "Helm"
    release: "reportportal"
    chart: reportportal-5.2.1
    app: "reportportal"
spec:
  rules:

  - http:
      paths:
      - path: /
        backend:
          serviceName: reportportal-ui
          servicePort: headless
          

---
# Source: reportportal/templates/ui-service.yaml
apiVersion: v1
kind: Service
metadata:
  name: reportportal-ui
  labels:     
    heritage: "Helm"
    release: "reportportal"
    chart: reportportal-5.2.1
    app: "reportportal"
  annotations:
    service: ui
    infoEndpoint: /info
spec:
  ports:
  - name: headless
    port: 5000
    protocol: TCP
    targetPort: 5000
  selector:
    component: reportportal-ui
  type: ClusterIP
  
  
---
# Source: reportportal/templates/ui-config-map.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: ui-nginx-conf
  labels:
     sdr.appname: reportportal
data:
  nginx.conf: |-
    user  nginx;
    worker_processes  1;

    error_log  /var/log/nginx/error.log warn;
    pid        /var/run/nginx.pid;

    events {
        worker_connections  1024;
    }

    http {
        keepalive_timeout  65;

        upstream ui {
            server 127.0.0.1:8080;
        }

        server {
            listen 5000;

            location / {
                #rewrite  /(ui)/?(.*)  /$2;
                proxy_pass         http://ui;
                proxy_redirect     off;
            }
        }
    }

---
# Source: reportportal/templates/ui-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: reportportal-ui
  labels:     
    heritage: "Helm"
    release: "reportportal"
    chart: reportportal-5.2.1
    app: "reportportal"
spec:
  replicas: 1
  selector:
    matchLabels:
      component: reportportal-ui
  template:
    metadata:
      labels:
        component: reportportal-ui
      annotations:
    spec:
      containers:
      - name: uinginx
        image: nginx:alpine
        ports:
        - containerPort: 5000
          protocol: TCP
        volumeMounts:
        - name: nginx-proxy-config
          mountPath: /etc/nginx/nginx.conf
          subPath: nginx.conf
      - name: ui
        image: "reportportal/service-ui:5.2.2"
        env:
          - name: RP_SERVER_PORT
            value: "8080"
        resources:
          requests:
            cpu: 100m
            memory: 64Mi
          limits:
            cpu: 200m
            memory: 128Mi
        readinessProbe:
          httpGet:
            path: "/health"
            port: 8080
          initialDelaySeconds: 30
          periodSeconds: 10
          timeoutSeconds: 3
      volumes:
        - name: nginx-proxy-config
          configMap:
            name: ui-nginx-conf
        
      securityContext:
        {}
      serviceAccountName:
      ...
我正在使用Minikube(在我的本地计算机上)，当我尝试访问URL时，出现“404 not found”页面。
这里的问题是，服务无法连接Pod [Sidecar]!
有人可以帮忙解决此问题吗？
提前致谢!

最佳答案

尝试了此🏂:

# MacOS
minikube start --driver=docker
kubectl apply -f file-with-all-the-manifests.yaml
它对我来说很棒。
从相同 namespace 🏃上的调试 Pane 中: 
/ # curl reportportal-ui:5000
<!doctype html>
  <html>
    <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <meta charset="utf-8">
      <title>Report Portal</title>
      <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no">
      <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <link rel="shortcut icon" href="favicon.ico"><link href="styles.535fa1.css" rel="stylesheet"><link href="main.535fa1.css" rel="stylesheet"></head>
    <body>
      <div id="app" style="width: 100%; height: 100%"></div>
      <div id="popover-root"></div>
      <div id="modal-root"></div>
      <div id="tooltip-root"></div>
      <div id="notification-root"></div>
      <div id="screen-lock-root"></div>
    <script type="text/javascript" src="polyfills.app.535fa1.js"></script><script type="text/javascript" src="styles.app.535fa1.js"></script><script type="text/javascript" src="main.app.535fa1.js"></script></body>
  </html>
/ #
也可以在Nginx边车容器works中使用: 
/ # curl 127.0.0.1:8080
<!doctype html>
  <html>
    <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <meta charset="utf-8">
      <title>Report Portal</title>
      <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no">
      <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <link rel="shortcut icon" href="favicon.ico"><link href="styles.535fa1.css" rel="stylesheet"><link href="main.535fa1.css" rel="stylesheet"></head>
    <body>
      <div id="app" style="width: 100%; height: 100%"></div>
      <div id="popover-root"></div>
      <div id="modal-root"></div>
      <div id="tooltip-root"></div>
      <div id="notification-root"></div>
      <div id="screen-lock-root"></div>
    <script type="text/javascript" src="polyfills.app.535fa1.js"></script><script type="text/javascript" src="styles.app.535fa1.js"></script><script type="text/javascript" src="main.app.535fa1.js"></script></body>
  </html>
/ #
无论您在哪个环境下运行，都可能需要联网。您的内部计算系统或minikube。查看是否所有 pods 都无法崩溃: 
kubectl get pods --all-namespaces
✌️

关于kubernetes - K8:无法使用Nginx反向代理连接Pod，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/63045467/

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