syntax = "proto3";

package containerd.v1;

service Containers {
    rpc Create(CreateRequest) returns (CreateResponse);
    rpc Start(StartRequest) returns (StartResponse);
    rpc Delete(DeleteRequest) returns (DeleteResponse);
    rpc State(StateRequest) returns (StateResponse);
    rpc Update(UpdateRequest) returns (UpdateResponse);
    rpc Pause(PauseRequest) returns (PauseResponse);
    rpc Resume(ResumeRequest) returns (ResumeResponse);

    rpc ContainerList(ContainerListRequest) returns (ContainerListResponse);

    rpc CreateProcess(CreateProcessRequest) returns (CreateProcessResponse);
    rpc StartProcess(StartProcessRequest) returns (StartProcessResponse);
    rpc ProcessState(ProcessStateRequest) returns (ProcessStateResponse);
    rpc SignalProcess(SignalProcessRequest) returns (SignalProcessResponse)
    rpc DeleteProcess(DeleteProcessRequest) returns (DeleteProcessResponse);
    rpc ProcessList(ProcessListRequest) returns (ProcessListResponse);

    rpc Events(EventsRequest) returns (stream EventsResponse);
}

message Container {
    string id = 1;
    repeated Mount mounts = 2;
    repeated string tags = 3;
    Process process = 4;
}

message Process {
    uint64 pid = 1;
    repeated string args = 1;
    repeated string env = 2;
    User user = 3;
    string cwd = 4;
    bool terminal = 5;
}

message ProcessSpec {
    repeated string args = 1;
    repeated string env = 2;
    User user = 3;
    string cwd = 4;
    bool terminal = 5;
    string stdin = 6;
    string stdout = 7;
    string stderr = 8;
}

message Mount {

}

message User {
	uint32 uid = 1;
	uint32 gid = 2;
	repeated uint32 additionalGids = 3; 
}

message CreateRequest {
    string id = 1;
    ProcessSpec process = 2;
    repeated Mount mounts = 3;
    repeated string tags = 4;
    optional string config_path = 5;
}

message CreateResponse {
    Container container = 1;
}

message StartRequest {
    string id = 1;
}

message StartResponse {
    State state = 1;
}

message DeleteRequest {
    string id = 1;
}

message DeleteResponse {

}

message ListContainerRequest {
    repeated string tags = 1;    
}

message ContainerListResponse {
    repeated Container containers = 1;
}

message StateRequest {
    string id = 1;
}

message StateResponse {
    Container container = 1;
}