containerd和shim通信

containerd-shim-runc-v2 启动了一个ttrpc server(类似grpc)

containerd 通过 ttrpc和containerd-shim-runc-v2  通信来管理容器

service Task {
	rpc State(StateRequest) returns (StateResponse);
	rpc Create(CreateTaskRequest) returns (CreateTaskResponse);
	rpc Start(StartRequest) returns (StartResponse);
	rpc Delete(DeleteRequest) returns (DeleteResponse);
	rpc Pids(PidsRequest) returns (PidsResponse);
	rpc Pause(PauseRequest) returns (google.protobuf.Empty);
	rpc Resume(ResumeRequest) returns (google.protobuf.Empty);
	rpc Checkpoint(CheckpointTaskRequest) returns (google.protobuf.Empty);
	rpc Kill(KillRequest) returns (google.protobuf.Empty);
	rpc Exec(ExecProcessRequest) returns (google.protobuf.Empty);
	rpc ResizePty(ResizePtyRequest) returns (google.protobuf.Empty);
	rpc CloseIO(CloseIORequest) returns (google.protobuf.Empty);
	rpc Update(UpdateTaskRequest) returns (google.protobuf.Empty);
	rpc Wait(WaitRequest) returns (WaitResponse);
	rpc Stats(StatsRequest) returns (StatsResponse);
	rpc Connect(ConnectRequest) returns (ConnectResponse);
	rpc Shutdown(ShutdownRequest) returns (google.protobuf.Empty);
}

containerd-shim-runc-v2 通过调用 containerd 的api把事件进行上报

root@nmx-NUC8i5BEH:/home/nmx/containerd# containerd-shim-runc-v2  --help
Usage of containerd-shim-runc-v2:
  -address string
    	grpc address back to main containerd
  -bundle string
    	path to the bundle if not workdir
  -debug
    	enable debug output in logs
  -id string
    	id of the task
  -namespace string
    	namespace that owns the shim
  -publish-binary string
    	path to publish binary (used for publishing events) (default "containerd")
  -socket string
    	socket path to serve
  -v	show the shim version and exit

　调用publish进行上报

events.Publish(ctx, runtime.TaskDeleteEventTopic, &eventstypes.TaskDelete{
        ContainerID: id,
        Pid:         pid,
        ExitStatus:  exitStatus,
        ExitedAt:    exitedAt,
    })