Kubernetes-服务之间的通信 [英] Kubernetes - communication between services

问题描述

我目前正在研究kubernetes集群.群集工作正常. 我需要在不使用代理的情况下在服务之间建立通信. 例如，我有以下服务:

I'm currently working on a kubernetes cluster. Cluster is working properly. I need to establish communication between services without using proxy. For example I have services below:

1. 工人
2. app1
3. app2
4. app3

工作人员需要直接通过SSH登录到应用程序容器并执行一些命令. 在docker-compose文件中，使用链接，然后使用ssh app1，ssh app2可以轻松实现. 如何在Kubernetes中做到这一点?

Worker needs to login to app containers directly via SSH and do some commands. In docker-compose file it was easy by using links and then ssh app1, ssh app2. How to do it in Kubernetes ?

推荐答案

有伪代码，

kind: Service
apiVersion: v1
metadata:
  name: worker
  labels:
    app: worker
spec:
  selector:
    app: worker
  ports:
  - protocol: TCP
    port: 22
    targetPort: 22
  type: NodePort 
---
kind: Service
apiVersion: v1
metadata:
  name: app1
  labels:
    app: app1
spec:
  selector:
    app: app1
  ports:
  - protocol: TCP
    port: 22
    targetPort: 22
  type: ClusterIP 
---
kind: Service
apiVersion: v1
metadata:
  name: app2
  labels:
    app: app2
spec:
  selector:
    app: app2
  ports:
  - protocol: TCP
    port: 22
    targetPort: 22
  type: ClusterIP 

然后，在工人上

ssh app1
ssh app2

这篇关于Kubernetes-服务之间的通信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！