feat: gRPC version API (#475)

internal/driver/registry_default.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"net/http"
 
+	acl "github.com/ory/keto/proto/ory/keto/acl/v1alpha1"
+
 	grpc_logrus "github.com/grpc-ecosystem/go-grpc-middleware/logging/logrus"
 	"github.com/ory/x/reqlog"
 	"github.com/urfave/negroni"
@@ -36,6 +38,7 @@ var (
 	_ x.WriterProvider              = (*RegistryDefault)(nil)
 	_ x.LoggerProvider              = (*RegistryDefault)(nil)
 	_ Registry                      = (*RegistryDefault)(nil)
+	_ acl.VersionServiceServer      = (*RegistryDefault)(nil)
 )
 
 type (
@@ -91,6 +94,10 @@ func (r *RegistryDefault) HealthServer() *health.Server {
 	return r.healthServer
 }
 
+func (r *RegistryDefault) GetVersion(_ context.Context, _ *acl.GetVersionRequest) (*acl.GetVersionResponse, error) {
+	return &acl.GetVersionResponse{Version: config.Version}, nil
+}
+
 func (r *RegistryDefault) Tracer() *tracing.Tracer {
 	panic("implement me")
 }
@@ -240,6 +247,7 @@ func (r *RegistryDefault) ReadGRPCServer() *grpc.Server {
 	)
 
 	grpcHealthV1.RegisterHealthServer(s, r.HealthServer())
+	acl.RegisterVersionServiceServer(s, r)
 	reflection.Register(s)
 
 	for _, h := range r.allHandlers() {
@@ -266,6 +274,7 @@ func (r *RegistryDefault) WriteGRPCServer() *grpc.Server {
 	)
 
 	grpcHealthV1.RegisterHealthServer(s, r.HealthServer())
+	acl.RegisterVersionServiceServer(s, r)
 	reflection.Register(s)
 
 	for _, h := range r.allHandlers() {

proto/ory/keto/acl/v1alpha1/version.proto

@@ -0,0 +1,20 @@
+syntax = "proto3";
+
+package ory.keto.acl.v1alpha1;
+
+option go_package = "github.com/ory/keto/proto/ory/keto/acl/v1alpha1;acl";
+option csharp_namespace = "Ory.Keto.Acl.V1Alpha1";
+option java_multiple_files = true;
+option java_outer_classname = "VersionServiceProto";
+option java_package = "sh.ory.keto.acl.v1alpha1";
+option php_namespace = "Ory\\Keto\\Acl\\V1alpha1";
+
+service VersionService {
+  rpc GetVersion(GetVersionRequest) returns (GetVersionResponse);
+}
+
+message GetVersionRequest {}
+
+message GetVersionResponse {
+  string version = 1;
+}