[enhancement request] CRI manager to integrate pouch with kubernetes

[YaoZengzeng]

What is the scope of CRI manager

• GRPC server : connect to kubelet and receive CRI requests

• API transform : use pouch's container & image manager to handle all kinds of CRI requests

• Pod support : pod's lifecycle and metadata store

• CNI integration: the network of containers which belong to kubernetes should be managed by CNI other than the pouch's network manager

What is not in the scope of CRI manager

• CRI manager should never interact directly with containerd. It is the job of pouch's container & image manager to implement all the details of containers & images processing

• All metadata, except for the sandbox should not be managed by CRI manager

The above is the coarse-grained division of CRI manager's scope, we may have to refine it in the future. And the next part of this issue is used to track the progress of CRI manager.

Task tracking

Basic framework

• [P0]Skeleton of CRI manager feature: cri manager skeleton #426

Lifecycle

• Sandbox Management

  • [P0]RunPodSandbox feature: implement basic RunPodSandbox method for cri manager #455
  • [P0]StopPodSandbox feature: implement StopPodSandbox and RemovePodSandbox of cri manager #561
  • [P0]RemovePodSandbox feature: implement StopPodSandbox and RemovePodSandbox of cri manager #561
  • [P0] ListPodSandbox feature: implement ListPodSandbox method of cri manager #551
  • [P0] PodSandboxStatus feature: implement ContainerStatus and PodSandboxStatus of cri manager #573

• Container Management

  • [P0] CreateContainer feature: implement CreateContainer and StartContainer method for cri manager #487
  • [P0] StartContainer feature: implement CreateContainer and StartContainer method for cri manager #487
  • [P0] StopContainer feature: implement StopContainer, RemoveContainer and ListContainers of cri manager #527
  • [P0] RemoveContainer feature: implement StopContainer, RemoveContainer and ListContainers of cri manager #527
  • [P0] ListContainers feature: implement StopContainer, RemoveContainer and ListContainers of cri manager #527
  • [P0] ContainerStatus feature: implement ContainerStatus and PodSandboxStatus of cri manager #573

• Image Management

  • [P0] ListImages feature: implement PullImage and ListImages methods for cri manager #477
  • [P0] PullImages feature: implement PullImage and ListImages methods for cri manager #477
  • [P0] RemoveImages feature: implement RemoveImage and ImageStatus methods for cri manager #496
  • [P0] ImageStatus feature: implement RemoveImage and ImageStatus methods for cri manager #496
  • [P2] ImageFsInfo

Others

• Network

  • [P1] Integrate CNI plugin feature: framework of cni #580

• Streaming

  • [P0] ExecSync feature: implement execSync of cri manager #629
  • [P2] Exec feature: basic framework of stream server for cri manager #797
  • [P2] Attach feature: basic framework of stream server for cri manager #797
  • [P2] PortForward feature: implement portforward for stream server #816

• [P2] Logging feature: cri manager could get the log of container #928

cc @skoo87 @allencloud

[WIZARD-CXY]

Let me take a closer look at it

[WIZARD-CXY]

lgtm

[allencloud]

Hi, @xiang90 ,
Could you help to review this for us as an expert on Kubernetes? More details about architecture, maybe you can refer to https://github.com/alibaba/pouch/blob/master/docs/architecture.md#component-architecture.
And Please feel free to share with us if you find any thoughtlessness we brought. Thanks a lot. 🍻

[allencloud]

Have we finished the final one ImageFsInfo ? @YaoZengzeng @starnop
Just keep track of this.

[YaoZengzeng]

All tasks have been finished, close now.