如何使用领事在kubernetes中公开应用

时间:2018-12-17 11:12:29

标签: kubernetes consul

我们已经通过头盔图表在k8集群上安装了领事。在这里,我已经部署了一个领事服务器,其余的是领事代理。

kubectl get pods
NAME                                                          READY     STATUS      RESTARTS   AGE
consul-7csp9                                                  1/1       Running     0          4h
consul-connect-injector-webhook-deployment-66d46867f6-wqtt7   1/1       Running     0          4h
consul-server-0                                               1/1       Running     0          4h
consul-sync-catalog-85f5654b89-9qblx                          1/1       Running     0          4h
consul-x4mqq                                                  1/1       Running     0          4h

我们看到节点已注册到Consul服务器。 http://XX.XX.XX.XX/ui/kube/nodes

我们已经在k8集群上部署了hello world应用程序。这将显示Hello-World

kubectl get pods
NAME                                                          READY     STATUS      RESTARTS   AGE
consul-7csp9                                                  1/1       Running     0          4h
consul-connect-injector-webhook-deployment-66d46867f6-wqtt7   1/1       Running     0          4h
consul-server-0                                               1/1       Running     0          4h
consul-sync-catalog-85f5654b89-9qblx                          1/1       Running     0          4h
consul-x4mqq                                                  1/1       Running     0          4h
sampleapp-69bf9f84-ms55k                                      2/2       Running     0          4h

下面是yaml文件。

apiVersion: apps/v1
kind: Deployment
metadata:
  name: sampleapp
spec:
  replicas: 1
selector:
matchLabels:
  app: sampleapp
template:
  metadata:
    labels:
      app: sampleapp
    annotations:
      "consul.hashicorp.com/connect-inject": "true"
  spec:
    containers:
    - name: sampleapp
      image: "docker-dev-repo.aws.com/sampleapp-java/helloworld-service:a8c9f65-65"
      ports:
      - containerPort: 8080
        name: http

成功部署了sampleapp,我看到在领事中注册了sampleapp-proxy。并在kubernetes服务中列出了sampleapp-proxy。 (这是因为toConsul和toK8S在安装过程中均按true传递)

kubectl get services
NAME                          TYPE           CLUSTER-IP     EXTERNAL-IP                      PORT(S)                                                                   AGE
consul                        ExternalName   <none>         consul.service.test              <none>                                                                    4h
consul-connect-injector-svc   ClusterIP      XX.XX.XX.XX    <none>                           443/TCP                                                                   4h
consul-dns                    ClusterIP      XX.XX.XX.XX    <none>                           53/TCP,53/UDP                                                             4h
consul-server                 ClusterIP      None           <none>                           8500/TCP,8301/TCP,8301/UDP,8302/TCP,8302/UDP,8300/TCP,8600/TCP,8600/UDP   4h
consul-ui                     LoadBalancer   XX.XX.XX.XX    XX.XX.XX.XX                      80:32648/TCP                                                              4h
dns-test-proxy                ExternalName   <none>         dns-test-proxy.service.test      <none>                                                                    2h
fluentd-gcp-proxy             ExternalName   <none>         fluentd-gcp-proxy.service.test   <none>                                                                    33m
kubernetes                    ClusterIP      XX.XX.XX.XX    <none>                           443/TCP                                                                   5d
sampleapp-proxy               ExternalName   <none>         sampleapp-proxy.service.test     <none>                                                                    4h

如何访问我的sampleapp?我是否应该再次将应用程序公开为kube服务?

之前,没有领事,我们使用了一个为sampleapp创建服务,并将该服务公开为入口。使用Ingress负载平衡器,我们曾经访问过我们的应用程序。

1 个答案:

答案 0 :(得分:1)

领事不提供任何公开您的应用程序的新方法。您需要像以前一样创建入口负载均衡器。