{"id":33267,"date":"2023-10-21T19:53:19","date_gmt":"2023-03-16T14:48:11","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetes%e7%9a%84ingress%e5%8a%9f%e8%83%bd%e6%98%af%e5%90%a6%e6%ad%a3%e5%b8%b8%e3%80%82\/"},"modified":"2024-05-04T05:23:44","modified_gmt":"2024-05-03T21:23:44","slug":"%e7%a1%ae%e8%ae%a4kubernetes%e7%9a%84ingress%e5%8a%9f%e8%83%bd%e6%98%af%e5%90%a6%e6%ad%a3%e5%b8%b8%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetes%e7%9a%84ingress%e5%8a%9f%e8%83%bd%e6%98%af%e5%90%a6%e6%ad%a3%e5%b8%b8%e3%80%82\/","title":{"rendered":"\u786e\u8ba4[Kubernetes]\u7684ingress\u529f\u80fd\u662f\u5426\u6b63\u5e38"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u8fd9\u6b21\u6211\u60f3\u8981\u786e\u8ba4\u4e00\u4e0bIngress\u7684\u8fd0\u4f5c\u3002Ingress\u53ef\u4ee5\u7b80\u5355\u8bf4\u662fL7\u5c42\u7684\u8d1f\u8f7d\u5747\u8861\u5668\u3002
\n\u867d\u7136\u4e0e\u5728L4\u5c42\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\u7684LoadBalancer\u670d\u52a1\u76f8\u4f3c\uff0c\u4f46\u4e25\u683c\u6765\u8bf4\uff0cIngress\u5e76\u4e0d\u662f\u4e00\u4e2a\u670d\u52a1\uff0c\u800c\u662f\u4e00\u4e2a\u72ec\u7acb\u7684”Ingress”\u8d44\u6e90\u3002
\n\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5728\u5f53\u524d\u6700\u65b0\u7684V1.18\u7248\u672c\u4e2d\uff0c\u5b83\u4ecd\u7136\u662f\u4e00\u4e2aBeta\u7248\u3002<\/p>\n

kubernetes.io\u6539\u540d\u4e3aIngress\u3002<\/p><\/blockquote>\n

\u51c6\u5907\u4e4b\u524d\u7684\u4e8b\u9879<\/h1>\n

\u521b\u5efaPod<\/h2>\n

\u4e3a\u4e86\u9a8c\u8bc1Ingress\u7684\u64cd\u4f5c\uff0c\u521b\u5efa\u4ee5\u4e0bPod\uff08Deployment\uff09\u3002<\/p>\n

---<\/span>\r\napiVersion<\/span>:<\/span> apps\/v1<\/span>\r\nkind<\/span>:<\/span> Deployment<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> nginx0<\/span>\r\nspec<\/span>:<\/span>\r\n  replicas<\/span>:<\/span> 2<\/span>\r\n  selector<\/span>:<\/span>\r\n    matchLabels<\/span>:<\/span>\r\n      app<\/span>:<\/span> nginx-dep0<\/span>\r\n  template<\/span>:<\/span>\r\n    metadata<\/span>:<\/span>\r\n      labels<\/span>:<\/span>\r\n        app<\/span>:<\/span> nginx-dep0<\/span>\r\n    spec<\/span>:<\/span>\r\n      containers<\/span>:<\/span>\r\n        -<\/span> name<\/span>:<\/span> nginx<\/span>\r\n          image<\/span>:<\/span> nginx:latest<\/span>\r\n          ports<\/span>:<\/span>\r\n            -<\/span> containerPort<\/span>:<\/span> 80<\/span>\r\n---<\/span>\r\napiVersion<\/span>:<\/span> apps\/v1<\/span>\r\nkind<\/span>:<\/span> Deployment<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> nginx1<\/span>\r\nspec<\/span>:<\/span>\r\n  replicas<\/span>:<\/span> 2<\/span>\r\n  selector<\/span>:<\/span>\r\n    matchLabels<\/span>:<\/span>\r\n      app<\/span>:<\/span> nginx-dep1<\/span>\r\n  template<\/span>:<\/span>\r\n    metadata<\/span>:<\/span>\r\n      labels<\/span>:<\/span>\r\n        app<\/span>:<\/span> nginx-dep1<\/span>\r\n    spec<\/span>:<\/span>\r\n      containers<\/span>:<\/span>\r\n        -<\/span> name<\/span>:<\/span> nginx<\/span>\r\n          image<\/span>:<\/span> nginx:latest<\/span>\r\n          ports<\/span>:<\/span>\r\n            -<\/span> containerPort<\/span>:<\/span> 80<\/span>\r\n---<\/span>\r\napiVersion<\/span>:<\/span> apps\/v1<\/span>\r\nkind<\/span>:<\/span> Deployment<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> nginx2<\/span>\r\nspec<\/span>:<\/span>\r\n  replicas<\/span>:<\/span> 2<\/span>\r\n  selector<\/span>:<\/span>\r\n    matchLabels<\/span>:<\/span>\r\n      app<\/span>:<\/span> nginx-dep2<\/span>\r\n  template<\/span>:<\/span>\r\n    metadata<\/span>:<\/span>\r\n      labels<\/span>:<\/span>\r\n        app<\/span>:<\/span> nginx-dep2<\/span>\r\n    spec<\/span>:<\/span>\r\n      containers<\/span>:<\/span>\r\n        -<\/span> name<\/span>:<\/span> nginx<\/span>\r\n          image<\/span>:<\/span> nginx:latest<\/span>\r\n          ports<\/span>:<\/span>\r\n            -<\/span> containerPort<\/span>:<\/span> 80<\/span>\r\n---<\/span>\r\n<\/code><\/pre>\n
\u6211\u4f1a\u7533\u8bf7\u8fd9\u4e2a\u5ba3\u8a00\u3002<\/p>\n
$ kubectl apply -f deployment.yaml\r\ndeployment.apps\/nginx0 created\r\ndeployment.apps\/nginx1 created\r\ndeployment.apps\/nginx2 created\r\n<\/code><\/pre>\n
$ kubectl get pod -o wide\r\nNAME                      READY   STATUS    RESTARTS   AGE   IP               NODE           NOMINATED NODE   READINESS GATES\r\nnginx0-8466d57dbc-cndw8   1\/1     Running   0          43s   192.168.79.124   k8s-worker01   <none>           <none>\r\nnginx0-8466d57dbc-pdpxn   1\/1     Running   0          43s   192.168.69.215   k8s-worker02   <none>           <none>\r\nnginx1-68d8c5cc6d-fsmt7   1\/1     Running   0          43s   192.168.69.210   k8s-worker02   <none>           <none>\r\nnginx1-68d8c5cc6d-sbcwp   1\/1     Running   0          43s   192.168.79.120   k8s-worker01   <none>           <none>\r\nnginx2-55f9dc64d5-lqq8w   1\/1     Running   0          43s   192.168.69.214   k8s-worker02   <none>           <none>\r\nnginx2-55f9dc64d5-rr25f   1\/1     Running   0          43s   192.168.79.122   k8s-worker01   <none>           <none>\r\n<\/code><\/pre>\n
\u505a\u4e00\u4e2aPod\u7684\u6807\u8bb0<\/h3>\n
\u4e3a\u4e86\u8fdb\u884c\u52a8\u4f5c\u786e\u8ba4\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2aindex.html\u6587\u4ef6\uff0c\u5e76\u5206\u522b\u5728\u5176\u4e2d\u5199\u5165\u4e86\u300cnginx0\u300d\u3001\u300cnginx1\u300d\u548c\u300cnginx2\u300d\u3002
\n\u300cnginx1\u300d\u548c\u300cnginx2\u300d\u5c06\u5206\u522b\u5728\u66f4\u4f4e\u7ea7\u7684\u76ee\u5f55\u4e0b\u521b\u5efa\u3002<\/p>\n
## nginx0\r\n$ kubectl exec -it nginx0-8466d57dbc-cndw8 \/bin\/bash\r\n# echo nginx0 > \/usr\/share\/nginx\/html\/index.html\r\n# exit\r\n\r\n## nginx1\r\n$ kubectl exec -it nginx1-68d8c5cc6d-fsmt7 \/bin\/bash\r\n# mkdir \/usr\/share\/nginx\/html\/path1\r\n# echo nginx1 >\/usr\/share\/nginx\/html\/path1\/index.html\r\n# exit\r\n\r\n## nginx2\r\n$ kubectl exec -it nginx2-55f9dc64d5-lqq8w \/bin\/bash\r\n# mkdir \/usr\/share\/nginx\/html\/path2\r\n# echo nginx2 >\/usr\/share\/nginx\/html\/path2\/index.html\r\n# exit\r\n<\/code><\/pre>\n
\u521b\u5efaNodePort<\/h2>\n
\u521b\u5efa\u7528\u4e8eIngress\u540e\u7aef\u7684NodePort\u3002\u5bf9\u6bcf\u4e2aPod\uff08Deployment\uff09\u8fdb\u884c\u521b\u5efa\u3002<\/p>\n
---<\/span>\r\napiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Service<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> node-port0<\/span>\r\nspec<\/span>:<\/span>\r\n  type<\/span>:<\/span> NodePort<\/span>\r\n  ports<\/span>:<\/span>\r\n    -<\/span> name<\/span>:<\/span> node-port<\/span>\r\n      protocol<\/span>:<\/span> TCP<\/span>\r\n      port<\/span>:<\/span> 8080<\/span>\r\n      targetPort<\/span>:<\/span> 80<\/span>\r\n      nodePort<\/span>:<\/span> 30010<\/span>\r\n  selector<\/span>:<\/span>\r\n    app<\/span>:<\/span> nginx-dep0<\/span>\r\n---<\/span>\r\napiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Service<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> node-port1<\/span>\r\nspec<\/span>:<\/span>\r\n  type<\/span>:<\/span> NodePort<\/span>\r\n  ports<\/span>:<\/span>\r\n    -<\/span> name<\/span>:<\/span> node-port<\/span>\r\n      protocol<\/span>:<\/span> TCP<\/span>\r\n      port<\/span>:<\/span> 8080<\/span>\r\n      targetPort<\/span>:<\/span> 80<\/span>\r\n      nodePort<\/span>:<\/span> 30011<\/span>\r\n  selector<\/span>:<\/span>\r\n    app<\/span>:<\/span> nginx-dep1<\/span>\r\n---<\/span>\r\napiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Service<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> node-port2<\/span>\r\nspec<\/span>:<\/span>\r\n  type<\/span>:<\/span> NodePort<\/span>\r\n  ports<\/span>:<\/span>\r\n    -<\/span> name<\/span>:<\/span> node-port<\/span>\r\n      protocol<\/span>:<\/span> TCP<\/span>\r\n      port<\/span>:<\/span> 8080<\/span>\r\n      targetPort<\/span>:<\/span> 80<\/span>\r\n      nodePort<\/span>:<\/span> 30012<\/span>\r\n  selector<\/span>:<\/span>\r\n    app<\/span>:<\/span> nginx-dep2<\/span>\r\n<\/code><\/pre>\n
\u6211\u5c06\u5e94\u7528\u6b64\u5ba3\u8a00\u3002<\/p>\n
$ kubectl apply -f nodePort.yaml\r\nservice\/node-port0 created\r\nservice\/node-port1 created\r\nservice\/node-port2 created\r\n$ kubectl get svc\r\nNAME         TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE\r\nkubernetes   ClusterIP   10.96.0.1        <none>        443\/TCP          48d\r\nnode-port0   NodePort    10.103.174.12    <none>        8080:30010\/TCP   6s\r\nnode-port1   NodePort    10.104.244.161   <none>        8080:30011\/TCP   6s\r\nnode-port2   NodePort    10.102.124.27    <none>        8080:30012\/TCP   6s\r\n<\/code><\/pre>\n
\u521b\u5efaIngress\u8d44\u6e90<\/h1>\n
\u65e2\u7ecf\u8fc7\u8fd9\u4e9b\u51c6\u5907\u5de5\u4f5c\uff0c\u73b0\u5728\u6211\u4eec\u5f00\u59cb\u521b\u5efaIngress\u3002
\n\u8981\u4f7f\u7528Ingress\uff0c\u9700\u8981\u51c6\u5907”Ingress\u8d44\u6e90”\u548c”Ingress\u63a7\u5236\u5668”\u3002<\/p>\n
\u5728\u6e05\u5355\u4e0a\uff0c\u9700\u8981\u4e00\u4e2a\u8bf7\u6c42\u8def\u5f84\u5217\u8868\u3002\u4e0e\u8def\u5f84\u5173\u8054\u7684\u540e\u7aef\u662f\u901a\u8fc7serviceName\u548cservicePort\u8fdb\u884c\u5b9a\u4e49\u7684\u3002\u8fd8\u53ef\u4ee5\u9009\u62e9\u6027\u5730\u8bbe\u7f6e\u4e3b\u673a\u540d\u3002\u53e6\u5916\uff0c\u6700\u597d\u4e5f\u8bbe\u7f6e\u4e00\u4e2a\u9ed8\u8ba4\u7684\u540e\u7aef\u3002<\/p>\n
Ingress\u8d44\u6e90 -> Ingress\u89c4\u5219\u3001\u9ed8\u8ba4\u7684\u540e\u7aef<\/p><\/blockquote>\n
apiVersion<\/span>:<\/span> networking.k8s.io\/v1beta1<\/span>\r\nkind<\/span>:<\/span> Ingress<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> sample-ingress<\/span>\r\nspec<\/span>:<\/span>\r\n  rules<\/span>:<\/span>\r\n  -<\/span> host<\/span>:<\/span> foo.bar.com<\/span>\r\n    http<\/span>:<\/span>\r\n      paths<\/span>:<\/span>\r\n      -<\/span> path<\/span>:<\/span> \/path1<\/span>\r\n        backend<\/span>:<\/span>\r\n          serviceName<\/span>:<\/span> node-port1<\/span>\r\n          servicePort<\/span>:<\/span> 8080<\/span>\r\n      -<\/span> path<\/span>:<\/span> \/path2<\/span>\r\n        backend<\/span>:<\/span>\r\n          serviceName<\/span>:<\/span> node-port2<\/span>\r\n          servicePort<\/span>:<\/span> 8080<\/span>\r\n  backend<\/span>:<\/span>\r\n    serviceName<\/span>:<\/span> node-port0<\/span>\r\n    servicePort<\/span>:<\/span> 8080<\/span>\r\n<\/code><\/pre>\n
\u6211\u4f1a\u63d0\u4ea4\u8fd9\u4e2a\u5ba3\u8a00\u4e66\u3002<\/p>\n
$ kubectl apply -f sampleIngress.yaml\r\ningress.networking.k8s.io\/simple-ingress created\r\n$ kubectl get ingress\r\nNAME             HOSTS         ADDRESS   PORTS   AGE\r\nsample-ingress   foo.bar.com             80      10s\r\n<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u65f6\u5019\uff0c\u201cADDRESS\u201d\u662f\u7a7a\u767d\u7684\u3002<\/p>\n
\u5b89\u88c5 Ingress \u63a7\u5236\u5668<\/h1>\n
\u636e\u8bf4\u5728GKE\u4e0a\uff0cIngress\u63a7\u5236\u5668\u9ed8\u8ba4\u90e8\u7f72\uff0c\u6240\u4ee5\u4ee5\u540e\u4e0d\u518d\u9700\u8981\uff08\u672a\u786e\u8ba4\uff09\u3002
\n\u4f46\u662f\uff0c\u8fd9\u6b21\u662f\u5728\u672c\u5730\u90e8\u7f72\uff08\u800c\u4e14\u662f\u5728\u4e2a\u4eba\u7535\u8111\u4e0a\uff0c\u800c\u4e14\u662f\u865a\u62df\u673a\uff09\uff0c\u6240\u4ee5\u6211\u4eec\u5c06\u4f7f\u7528Nginx Ingress\u3002<\/p>\n
NGINX\u5165\u53e3\u63a7\u5236\u5668 -> \u5b89\u88c5\u6307\u5357<\/p><\/blockquote>\n
\u8bf7\u6309\u7167\u300cDocker for Mac\u300d\u7684\u5b89\u88c5\u6b65\u9aa4\u8fdb\u884c\u5b89\u88c5\u3002
\n\u203b\u524d\u63d0\u662f\u9700\u8981\u5df2\u7ecf\u5b89\u88c5\u4e86MetalLB\u3002
\n\u8bf7\u53c2\u8003MetalLB\u7684\u5b89\u88c5\u6b65\u9aa4\u3002<\/p>\n
$ kubectl apply -f https:\/\/raw.githubusercontent.com\/kubernetes\/ingress-nginx\/nginx-0.30.0\/deploy\/static\/mandatory.yaml\r\nnamespace\/ingress-nginx configured\r\nconfigmap\/nginx-configuration created\r\nconfigmap\/tcp-services created\r\nconfigmap\/udp-services created\r\nserviceaccount\/nginx-ingress-serviceaccount created\r\nclusterrole.rbac.authorization.k8s.io\/nginx-ingress-clusterrole created\r\nrole.rbac.authorization.k8s.io\/nginx-ingress-role created\r\nrolebinding.rbac.authorization.k8s.io\/nginx-ingress-role-nisa-binding created\r\nclusterrolebinding.rbac.authorization.k8s.io\/nginx-ingress-clusterrole-nisa-binding created\r\ndeployment.apps\/nginx-ingress-controller created\r\nlimitrange\/ingress-nginx created\r\n$ kubectl apply -f https:\/\/raw.githubusercontent.com\/kubernetes\/ingress-nginx\/nginx-0.30.0\/deploy\/static\/provider\/cloud-generic.yaml\r\nservice\/ingress-nginx created\r\n<\/code><\/pre>\n
\u6211\u4f1a\u786e\u8ba4\u3002 (W\u01d2 hu\u00ec .)<\/p>\n
$ kubectl -n ingress-nginx get svc\r\nNAME            TYPE           CLUSTER-IP      EXTERNAL-IP    PORT(S)                      AGE\r\ningress-nginx   LoadBalancer   10.102.172.38   10.20.30.150   80:31001\/TCP,443:32326\/TCP   39s\r\n$ kubectl get pod -n ingress-nginx\r\nNAME                                        READY   STATUS    RESTARTS   AGE\r\nnginx-ingress-controller-7f74f657bd-8l8c6   1\/1     Running   0          21m\r\n<\/code><\/pre>\n
\u5b89\u88c5Ingress\u63a7\u5236\u5668\u540e\uff0cIngress\u8d44\u6e90\u7684ADDRESS\u5b57\u6bb5\u5c06\u663e\u793aIP\u5730\u5740\u3002<\/p>\n
$ kubectl get ingresses.\r\nNAME             HOSTS         ADDRESS        PORTS   AGE\r\nsimple-ingress   foo.bar.com   10.20.30.150   80      84m\r\n<\/code><\/pre>\n
\u786e\u8ba4\u52a8\u4f5c<\/h1>\n
\u6211\u5011\u5f9egateway\u767c\u9001\u8acb\u6c42\u4e26\u78ba\u8a8d\u56de\u61c9\u3002<\/p>\n
$ curl http:\/\/10.20.30.150\/path1\/index.html -H 'Host: foo.bar.com'\r\nnginx1\r\n$ curl http:\/\/10.20.30.150\/path2\/index.html -H 'Host: foo.bar.com'\r\nnginx2\r\n$ curl http:\/\/10.20.30.150\/ -H 'Host: foo.bar.com'\r\nnginx0\r\n<\/code><\/pre>\n
\u4f60\u56de\u7b54\u5f97\u5f88\u597d\u561b\u3002 (N\u01d0 d\u00e9 .)<\/p>\n
\u603b\u7ed3<\/h1>\n
\u6211\u5df2\u7ecf\u786e\u8ba4\u4e86\u8bbe\u7f6e\u548c\u64cd\u4f5c\uff0c\u4f46\u7531\u4e8e\u591a\u5e74\u6765\u53ea\u505a\u8fc7\u4f4e\u5c42\u6b21\u7684\u57fa\u7840\u7ed3\u6784\uff0c\u5bf9L7\u5c42\u7684\u8fd0\u4f5c\u8fd8\u4e0d\u592a\u7406\u89e3\u3002
\n\u5728\u8fd9\u91cc\u7ea0\u7ed3\u4e5f\u6ca1\u6709\u610f\u4e49\uff0c\u6240\u4ee5\u6211\u6253\u7b97\u5148\u7ee7\u7eed\u524d\u8fdb\uff0c\u7136\u540e\u518d\u91cd\u65b0\u786e\u8ba4\u4e00\u6b21\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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