Nickname support

proto/headscale/v1/headscale.proto

@@ -99,6 +99,12 @@ service HeadscaleService {
         };
     }
 
+    rpc RenameMachine(RenameMachineRequest) returns (RenameMachineResponse) {
+        option (google.api.http) = {
+            post: "/api/v1/machine/{machine_id}/rename/{new_name}"
+        };
+    }
+
     rpc ListMachines(ListMachinesRequest) returns (ListMachinesResponse) {
         option (google.api.http) = {
             get: "/api/v1/machine"

proto/headscale/v1/machine.proto

@@ -38,6 +38,8 @@ message Machine {
     // bytes host_info      = 15;
     // bytes endpoints      = 16;
     // bytes enabled_routes = 17;
+
+    string          nickname     = 18;
 }
 
 message RegisterMachineRequest {
@@ -72,6 +74,15 @@ message ExpireMachineResponse {
     Machine machine = 1;
 }
 
+message RenameMachineRequest {
+    uint64 machine_id = 1;
+    string new_name = 2;
+}
+
+message RenameMachineResponse {
+    Machine machine = 1;
+}
+
 message ListMachinesRequest {
     string namespace = 1;
 }