如何在我的kubernetes集群之外访问mysql? [英] How to access mysql outside my kubernetes cluster?

问题描述

我在我的centos机器上运行kubernetes集群. 我不想为mysql创建一个pod. MySQL安装在同一网络中的另一台机器上(机器不在kubernates专用网络中).

I am running a kubernetes cluster in my centos machine. I donot want to create a pod for mysql. MySQL is installed in another machine in same network (Machine is not in kubernates private network).

如何从kubernetes集群中运行的Pod中访问mysql服务?

How can I access the mysql service from the pods running in kubernetes cluster ?

我尝试使用以下配置处理服务和端点.但是，没有运气.

I have tried with service and end point with below configuration. But, No luck.

apiVersion: v1
kind: Service
metadata:
  name: database
spec:
  ports:
  - port: 13080
    targetPort: 13080
    protocol: TCP
---
kind: Deployment
apiVersion: v1
metadata:
  name: database
subsets:
  - addresses:
      - ip: XX.XX.XX.XX
    ports:
      - port: 13080
---
kind: ReplicationController
metadata:
  name: test
spec:
  replicas: 1
  selector:
    app: test
  template:
    metadata:
      name: test
      labels:
        app: test
    spec:
      containers:
      - name: my_pods
        image: my_pods
        env:
         - name: DATABASE_HOST
           value: database
         - name: DATABASE_PORT
           value: "13080"
         - name: DATABASE_USER
           value: "SAAS"
         - name: DATABASE_PASSWORD
           value: "SAAS"
         - name: DATABASE_NAME
           value: "SAASDB"
        ports:
          - containerPort: 8080
      imagePullSecrets:
        - name: my-secret
---
apiVersion: v1
kind: Service
metadata:
  name: test-service
  labels:
    name: test-service
spec:
  type: NodePort
  ports:
     - port: 11544
       targetPort: 8080
       nodePort: 30600
  selector:
    name: test

推荐答案

您不需要为群集之外的事物提供服务.根据您使用的网络模型，docker容器(即kubernetes pod)应该能够通过Docker设置的网桥正常连接到MySQL容器.检查主机在端口3306上是否具有连接，并且确实如此，只需输入DNS名称(您的kube-dns pod应将任何基于非kubernetes的请求转发到计划的主机的主机resolv.conf上)

You don't need a service for things outside the cluster. Depending on the networking model you're using, the docker container (ie kubernetes pod) should be able to connect to the MySQL container normally via the bridge that Docker sets up. Check the host has connectivity on port 3306, and it does, simply put in the DNS name (your kube-dns pod should forward any non kubernetes based requests on to the hosts resolv.conf of the host it was scheduled on)

这篇关于如何在我的kubernetes集群之外访问mysql?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IT屋！