Kubernetes集群APP DNS

问题描述

如果我注册了域名www.domain.com，并且我有新的kubernetes集群启动并正在运行.我已经成功启动了Deployments和Services来公开要求.

If I have a domain name www.domain.com registered and I have fresh kubernetes cluster up and running. I have successfully lauched Deployments and Services to expose the requirements.

该服务正在我的GCE群集上创建LoadBalancer，并且当我尝试通过外部IP访问APP时，其工作正常.

The service is creating a LoadBalancer on my GCE cluster and when I try to access my APP through the the external IP its working.

但这是我理想中想要实现的目标:

But this is what I wanted to achieve ideally :

要将我的应用程序的所有流量路由为www.app.domain.com，www.app2.domain.com.经过研究，我发现我需要一个Ingress Controller最好是NGINX服务器，但我一直在尝试这样做，但失败了.

To route all the traffic for my apps as www.app.domain.com , www.app2.domain.com. Upon research I have found that I need an Ingress Controller preferably NGINX server, I have been try to do this and failing miserably.

这是为我的部署公开JSON的服务:

This is the service exposing JSON for my deployments:

{
    "kind": "Service",
    "apiVersion": "v1",
    "metadata": {
        "name": 'node-js-srv'
    },

    "spec": {
        "type": 'LoadBalancer',
        "label": {
            'app': 'node-js-srv'
        },

        "ports": [
        {
            "targetPort": 8080,
            "protocol": "TCP",
            "port": 80,
            "name": "http"
        },
        {
            "protocol": "TCP",
            "port": 443,
            "name": "https",
            "targetPort": 8080
        }
        ],
        "selector": {
            "app": 'node-js'
        },
    }
}

推荐答案

GCE/GKE已经有一个Ingress Controller，您可以使用它.

GCE/GKE have already a Ingress Controller and you could use that one.

您必须将服务指定为NodePort类型，并从Ingress类型创建资源看: https://kubernetes.io/docs/user-guide/ingress/

You must specify your service as type NodePortand create a ressource from type IngressSee:https://kubernetes.io/docs/user-guide/ingress/

您可以在 https://github上找到GCE的示例. com/kubernetes/ingress/tree/master/examples/deployment/gce

服务:

{
    "kind": "Service",
    "apiVersion": "v1",
    "metadata": {
        "name": 'node-js-srv'
    },

    "spec": {
        "type": 'NodePort',
        "label": {
            'app': 'node-js-srv'
        },

        "ports": [
        {
            "targetPort": 8080,
            "protocol": "TCP",
            "port": 80,
            "name": "http"
        },
        {
            "protocol": "TCP",
            "port": 443,
            "name": "https",
            "targetPort": 8080
        }
        ],
        "selector": {
            "app": 'node-js'
        },
    }
}

入口:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: test
spec:
  rules:
  - host: www.app.domain.com
    http:
      paths:
      - backend:
          serviceName: node-js-srv
          servicePort: 80
  - host: www.app2.domain.com
    http:
      paths:
      - backend:
          serviceName: xyz
          servicePort: 80

这篇关于Kubernetes集群APP DNS的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！