kubernates网络模型、网络策略
ip-per-pod模型
![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342038676.png)
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![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342043953.png)
![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342046972.png)
网络划分层次
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容器和容器之间的访问
在同一个 Pod 中的容器共享相同的网络命名空间,容器之间通过 localhost 访问端口。
表示的是在一个 Node 上运行着一个 Pod 实例,在 Pod 中运行着容器 1 和容器 2。容器 1 和容器 2 共享相同的网络命名空间,打开的端口不会产生冲突。
pause容器
![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342313591.png)
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![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342319622.png)
相同的node上的pod通信和不同node上的pod通信
![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342564866.png)
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![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342581700.png)
![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342586110.png)
![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342589507.png)
![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342593113.png)
这种连接规范只是定义标准化CNI 网络模型
网络策略
![enter description here enter description here](https://raw.githubusercontent.com/miaozhijuan/xiaoshujiang/master/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1586342895832.png)
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