syntax = "proto3";

package proto;

import "google/protobuf/empty.proto";

// The OSD service definition.
//
// OSD Service also implements all the API of Init Service
service OSD {
  rpc DF(google.protobuf.Empty) returns (DFReply) {}
  rpc Dmesg(google.protobuf.Empty) returns (Data) {}
  rpc Kubeconfig(google.protobuf.Empty) returns (Data) {}
  rpc Logs(LogsRequest) returns (stream Data) {}
  rpc Processes(ProcessesRequest) returns (ProcessesReply) {}
  rpc Restart(RestartRequest) returns (RestartReply) {}
  rpc Routes(google.protobuf.Empty) returns (RoutesReply) {}
  rpc Stats(StatsRequest) returns (StatsReply) {}
  rpc Top(google.protobuf.Empty) returns (TopReply) {}
  rpc Version(google.protobuf.Empty) returns (Data) {}
}

enum ContainerDriver {
  CONTAINERD = 0;
  CRI = 1;
}

// The request message containing the containerd namespace.
message ProcessesRequest {
  string namespace = 1;
  // driver might be default "containerd" or "cri"
  ContainerDriver driver = 2;
}

// The response message containing the requested processes.
message ProcessesReply { repeated Process processes = 1; }

// The response message containing the requested processes.
message Process {
  string namespace = 1;
  string id = 2;
  string image = 3;
  uint32 pid = 4;
  string status = 5;
  string pod_id = 6;
  string name = 7;
}

// The request message containing the containerd namespace.
message StatsRequest {
  string namespace = 1;
  // driver might be default "containerd" or "cri"
  ContainerDriver driver = 2;
}

// The response message containing the requested stats.
message StatsReply { repeated Stat stats = 1; }

// The response message containing the requested stat.
message Stat {
  string namespace = 1;
  string id = 2;
  uint64 memory_usage = 4;
  uint64 cpu_usage = 5;
  string pod_id = 6;
  string name = 7;
}

// The request message containing the process to restart.
message RestartRequest {
  string namespace = 1;
  string id = 2;
  // driver might be default "containerd" or "cri"
  ContainerDriver driver = 3;
}

// The response message containing the restart status.
message RestartReply {}

// The request message containing the process name.
message LogsRequest {
  string namespace = 1;
  string id = 2;
  // driver might be default "containerd" or "cri"
  ContainerDriver driver = 3;
}

// The response message containing the requested logs.
message Data { bytes bytes = 1; }

// The response message containing the routes.
message RoutesReply { repeated Route routes = 1; }

// The response message containing a route.
message Route {

  // Interface is the interface over which traffic to this destination should be sent
  string interface = 1;

  // Destination is the network prefix CIDR which this route provides
  string destination = 2;

  // Gateway is the gateway address to which traffic to this destination should be sent
  string gateway = 3;

  // Metric is the priority of the route, where lower metrics have higher priorities
  uint32 metric = 4;

  // Scope desribes the scope of this route
  uint32 scope = 5;

  // Source is the source prefix CIDR for the route, if one is defined
  string source = 6;

  // Family is the address family of the route.  Currently, the only options are AF_INET (IPV4) and AF_INET6 (IPV6).
  AddressFamily family = 7;

  // Protocol is the protocol by which this route came to be in place
  RouteProtocol protocol = 8;

  // Flags indicate any special flags on the route
  uint32 flags = 9;
}

enum AddressFamily {
   option allow_alias = true;
   AF_UNSPEC = 0x0;
   AF_INET = 0x2;
   IPV4 = 0x2;
   AF_INET6 = 0xa;
   IPV6 = 0xa;
}

enum RouteProtocol {
   RTPROT_UNSPEC = 0;
   RTPROT_REDIRECT = 1;  // Route installed by ICMP redirects
   RTPROT_KERNEL = 2;    // Route installed by kernel
   RTPROT_BOOT = 3;      // Route installed during boot
   RTPROT_STATIC = 4;    // Route installed by administrator
   RTPROT_GATED = 8;     // Route installed by gated
   RTPROT_RA = 9;        // Route installed by router advertisement
   RTPROT_MRT = 10;      // Route installed by Merit MRT
   RTPROT_ZEBRA = 11;    // Route installed by Zebra/Quagga
   RTPROT_BIRD = 12;     // Route installed by Bird
   RTPROT_DNROUTED = 13; // Route installed by DECnet routing daemon
   RTPROT_XORP = 14;     // Route installed by XORP
   RTPROT_NTK = 15;      // Route installed by Netsukuku
   RTPROT_DHCP = 16;     // Route installed by DHCP
   RTPROT_MROUTED = 17;  // Route installed by Multicast daemon
   RTPROT_BABEL = 42;    // Route installed by Babel daemon
}

message TopRequest {}

message TopReply { ProcessList process_list = 1; }

message ProcessList { bytes bytes = 1; }

// The response message containing the requested df stats.
message DFReply { repeated DFStat stats = 1; }

// The response message containing the requested processes.
message DFStat {
  string filesystem = 1;
  uint64 size = 2;
  uint64 available = 3;
  string mounted_on = 4;
}