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;
    string owner = 3;
    Process process = 4;
}

message Process {
    uint64 pid = 1;
    repeated string args = 2;
    repeated string env = 3;
    User user = 4;
    string cwd = 5;
    bool terminal = 6;
}

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 {
    string source = 1;
    string target = 2;
    string type = 3;
    repeated string options = 4;
}

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

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

message CreateResponse {
    Container container = 1;
}

message StartRequest {
    string id = 1;
}

message State {
}

message StartResponse {
    State state = 1;
}

message DeleteRequest {
    string id = 1;
}

message DeleteResponse {
}

message ContainerListRequest {
    repeated string owner = 1;
}

message ContainerListResponse {
    repeated Container containers = 1;
}

message StateRequest {
    string id = 1;
}

message StateResponse {
    Container container = 1;
}

message UpdateRequest {
    string id = 1;
}

message UpdateResponse {
}

message PauseRequest {
    string id = 1;
}

message PauseResponse {
}

message ResumeRequest {
    string id = 1;
}

message ResumeResponse {
}

message CreateProcessRequest {
    string id = 1;
    ProcessSpec spec = 2;
}

message CreateProcessResponse {
}

message StartProcessRequest {
    string cid = 1;
    string pid = 2;
}

message StartProcessResponse {
    uint32 pid = 1;
}

message ProcessStateRequest {
    string cid = 1;
    string pid = 2;
}

message ProcessStateResponse {
    State state = 1;
}

message SignalProcessRequest {
    string cid = 1;
    string pid = 2;
    uint32 signal = 3;
}

message SignalProcessResponse {
}

message DeleteProcessRequest {
    string cid = 1;
    string pid = 2;
}

message DeleteProcessResponse {
}

message ProcessListRequest {
    string id = 1;
}

message ProcessListResponse {
}

message EventsRequest {
}

message EventsResponse {
}