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resouer/gist:6ad3ec445cdab0ab3a8e5149a734d294

Created October 21, 2016 12:19
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infra container in cri-o
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gistfile1.txt
cri-o中infra container的处理，都在server/sandbox.go里。
infra container即pod/sandbox，名字是：sandbox.name + "-infra"
infra container的管理逻辑是由kubelet控制的，调用crio的sandbox方法，比如下面的：
RunPodSandbox
负责hold network namespace of pod，所以需要处理：
1. set DNS option
2. mount /etc/resolv.conf
3. netPlugin.SetUpPod 配置容器网络
4. 剩下的启动过程和普通container相同
StopPodSandbox
停止之前要先netPlugin.TearDownPod
简单的说（未逐行验证，但design是这样）：
1. 所有对container的操作，都是对user container的操作
2. 对infra container的操作，都叫sandbox xxx
3. 具体执行哪个操作，应该kubelet的逻辑来管理，cri-o只需要准备好调用的接口
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