Zanzana: client integration test (#89997)

* Restructure

* Zanzana: Add integration tests for client

* skip mysql 5.7 integration tests

pkg/services/authz/zanzana/client/client.go

@@ -28,9 +28,16 @@ func WithLogger(logger log.Logger) ClientOption {
 	}
 }
 
+func WithSchema(dsl string) ClientOption {
+	return func(c *Client) {
+		c.dsl = dsl
+	}
+}
+
 type Client struct {
 	logger   log.Logger
 	client   openfgav1.OpenFGAServiceClient
+	dsl      string
 	tenantID string
 	storeID  string
 	modelID  string
@@ -53,6 +60,10 @@ func New(ctx context.Context, cc grpc.ClientConnInterface, opts ...ClientOption)
 		c.tenantID = "stack-default"
 	}
 
+	if c.dsl == "" {
+		c.dsl = schema.DSL
+	}
+
 	store, err := c.getOrCreateStore(ctx, c.tenantID)
 	if err != nil {
 		return nil, err
@@ -60,7 +71,7 @@ func New(ctx context.Context, cc grpc.ClientConnInterface, opts ...ClientOption)
 
 	c.storeID = store.GetId()
 
-	modelID, err := c.loadModel(ctx, c.storeID, schema.DSL)
+	modelID, err := c.loadModel(ctx, c.storeID, c.dsl)
 	if err != nil {
 		return nil, err
 	}
@@ -165,7 +176,7 @@ func (c *Client) loadModel(ctx context.Context, storeID string, dsl string) (str
 
 			// If provided dsl is equal to a stored dsl we use that as the authorization id
 			if schema.EqualModels(dsl, storedDSL) {
-				return res.AuthorizationModels[0].GetId(), nil
+				return model.GetId(), nil
 			}
 		}
 

pkg/services/authz/zanzana/client/client_test.go

@@ -0,0 +1,113 @@
+package client
+
+import (
+	"context"
+	"testing"
+
+	openfgav1 "github.com/openfga/api/proto/openfga/v1"
+
+	"github.com/fullstorydev/grpchan/inprocgrpc"
+	"github.com/grafana/grafana/pkg/infra/db"
+	"github.com/grafana/grafana/pkg/infra/log"
+	"github.com/grafana/grafana/pkg/tests/testsuite"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	zserver "github.com/grafana/grafana/pkg/services/authz/zanzana/server"
+	zstore "github.com/grafana/grafana/pkg/services/authz/zanzana/store"
+	"github.com/grafana/grafana/pkg/services/sqlstore/migrator"
+)
+
+func TestMain(m *testing.M) {
+	testsuite.Run(m)
+}
+
+func TestIntegrationClient(t *testing.T) {
+	conn := zanzanaServerIntegrationTest(t)
+
+	var (
+		prevStoreID string
+		prevModelID string
+	)
+
+	t.Run("should create default store and authorization model on first startup", func(t *testing.T) {
+		c, err := New(context.Background(), conn)
+		require.NoError(t, err)
+
+		assert.NotEmpty(t, c.storeID)
+		assert.NotEmpty(t, c.modelID)
+
+		prevStoreID, prevModelID = c.storeID, c.modelID
+	})
+
+	t.Run("should reuse existing store and authorization model", func(t *testing.T) {
+		c, err := New(context.Background(), conn)
+		require.NoError(t, err)
+
+		assert.Equal(t, prevStoreID, c.storeID)
+		assert.Equal(t, prevModelID, c.modelID)
+	})
+
+	t.Run("should create new store and authorization model when new tenant id is used", func(t *testing.T) {
+		c, err := New(context.Background(), conn, WithTenantID("new"))
+		require.NoError(t, err)
+
+		assert.NotEmpty(t, c.storeID)
+		assert.NotEmpty(t, c.modelID)
+
+		assert.NotEqual(t, prevStoreID, c.storeID)
+		assert.NotEqual(t, prevModelID, c.modelID)
+
+		prevStoreID, prevModelID = c.storeID, c.modelID
+	})
+
+	t.Run("should update authorization model if it has new changes", func(t *testing.T) {
+		dsl := `
+model
+  schema 1.1
+
+type user
+		`
+		c, err := New(context.Background(), conn, WithTenantID("new"), WithSchema(dsl))
+		require.NoError(t, err)
+
+		assert.Equal(t, prevStoreID, c.storeID)
+		assert.NotEqual(t, prevModelID, c.modelID)
+	})
+
+	t.Run("should load older authorization model", func(t *testing.T) {
+		c, err := New(context.Background(), conn, WithTenantID("new"))
+		require.NoError(t, err)
+
+		assert.Equal(t, prevStoreID, c.storeID)
+		assert.Equal(t, prevModelID, c.modelID)
+	})
+}
+
+func zanzanaServerIntegrationTest(tb testing.TB) *inprocgrpc.Channel {
+	if testing.Short() {
+		tb.Skip("skipping integration test")
+	}
+
+	db, cfg := db.InitTestDBWithCfg(tb)
+
+	// Hack to skip these tests on mysql 5.7
+	if db.GetDialect().DriverName() == migrator.MySQL {
+		if supported, err := db.RecursiveQueriesAreSupported(); !supported || err != nil {
+			tb.Skip("skipping integration test")
+		}
+	}
+
+	logger := log.NewNopLogger()
+
+	store, err := zstore.NewEmbeddedStore(cfg, db, logger)
+	require.NoError(tb, err)
+
+	srv, err := zserver.New(store, logger)
+	require.NoError(tb, err)
+
+	channel := &inprocgrpc.Channel{}
+	openfgav1.RegisterOpenFGAServiceServer(channel, srv)
+
+	return channel
+}

pkg/services/authz/zanzana/logger/logger.go

@@ -1,4 +1,4 @@
-package zanzana
+package logger
 
 import (
 	"context"
@@ -8,13 +8,13 @@ import (
 	"github.com/grafana/grafana/pkg/infra/log"
 )
 
-// zanzanaLogger is a grafana logger wrapper compatible with OpenFGA logger interface
-type zanzanaLogger struct {
+// ZanzanaLogger is a grafana logger wrapper compatible with OpenFGA logger interface
+type ZanzanaLogger struct {
 	logger log.Logger
 }
 
-func newZanzanaLogger(logger log.Logger) *zanzanaLogger {
-	return &zanzanaLogger{
+func New(logger log.Logger) *ZanzanaLogger {
+	return &ZanzanaLogger{
 		logger: logger,
 	}
 }
@@ -36,50 +36,50 @@ func zapFieldsToArgs(fields []zap.Field) []any {
 	return args
 }
 
-func (l *zanzanaLogger) Debug(msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) Debug(msg string, fields ...zap.Field) {
 	l.logger.Debug(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) Info(msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) Info(msg string, fields ...zap.Field) {
 	l.logger.Info(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) Warn(msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) Warn(msg string, fields ...zap.Field) {
 	l.logger.Warn(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) Error(msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) Error(msg string, fields ...zap.Field) {
 	l.logger.Error(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) Panic(msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) Panic(msg string, fields ...zap.Field) {
 	l.logger.Error(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) Fatal(msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) Fatal(msg string, fields ...zap.Field) {
 	l.logger.Error(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) DebugWithContext(ctx context.Context, msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) DebugWithContext(ctx context.Context, msg string, fields ...zap.Field) {
 	l.logger.Debug(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) InfoWithContext(ctx context.Context, msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) InfoWithContext(ctx context.Context, msg string, fields ...zap.Field) {
 	l.logger.Info(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) WarnWithContext(ctx context.Context, msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) WarnWithContext(ctx context.Context, msg string, fields ...zap.Field) {
 	l.logger.Warn(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) ErrorWithContext(ctx context.Context, msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) ErrorWithContext(ctx context.Context, msg string, fields ...zap.Field) {
 	l.logger.Error(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) PanicWithContext(ctx context.Context, msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) PanicWithContext(ctx context.Context, msg string, fields ...zap.Field) {
 	l.logger.Error(msg, zapFieldsToArgs(fields)...)
 }
 
-func (l *zanzanaLogger) FatalWithContext(ctx context.Context, msg string, fields ...zap.Field) {
+func (l *ZanzanaLogger) FatalWithContext(ctx context.Context, msg string, fields ...zap.Field) {
 	l.logger.Error(msg, zapFieldsToArgs(fields)...)
 }

pkg/services/authz/zanzana/server.go

@@ -1,110 +1,20 @@
 package zanzana
 
 import (
-	"context"
-	"fmt"
-	"net/http"
-	"time"
-
-	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
-	openfgav1 "github.com/openfga/api/proto/openfga/v1"
-	httpmiddleware "github.com/openfga/openfga/pkg/middleware/http"
 	"github.com/openfga/openfga/pkg/server"
-	serverErrors "github.com/openfga/openfga/pkg/server/errors"
 	"github.com/openfga/openfga/pkg/storage"
-	"github.com/rs/cors"
-	"go.uber.org/zap/zapcore"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/credentials/insecure"
-	healthv1pb "google.golang.org/grpc/health/grpc_health_v1"
-	"google.golang.org/grpc/status"
 
 	"github.com/grafana/grafana/pkg/infra/log"
 	"github.com/grafana/grafana/pkg/services/grpcserver"
 	"github.com/grafana/grafana/pkg/setting"
+
+	zserver "github.com/grafana/grafana/pkg/services/authz/zanzana/server"
 )
 
 func NewServer(store storage.OpenFGADatastore, logger log.Logger) (*server.Server, error) {
-	// FIXME(kalleep): add support for more options, tracing etc
-	opts := []server.OpenFGAServiceV1Option{
-		server.WithDatastore(store),
-		server.WithLogger(newZanzanaLogger(logger)),
-	}
-
-	// FIXME(kalleep): Interceptors
-	// We probably need to at least need to add store id interceptor also
-	// would be nice to inject our own requestid?
-	srv, err := server.NewServerWithOpts(opts...)
-	if err != nil {
-		return nil, err
-	}
-
-	return srv, nil
+	return zserver.New(store, logger)
 }
 
-// StartOpenFGAHttpSever starts HTTP server which allows to use fga cli.
 func StartOpenFGAHttpSever(cfg *setting.Cfg, srv grpcserver.Provider, logger log.Logger) error {
-	dialOpts := []grpc.DialOption{
-		grpc.WithTransportCredentials(insecure.NewCredentials()),
-	}
-
-	addr := srv.GetAddress()
-	// Wait until GRPC server is initialized
-	ticker := time.NewTicker(100 * time.Millisecond)
-	defer ticker.Stop()
-	maxRetries := 100
-	retries := 0
-	for addr == "" && retries < maxRetries {
-		<-ticker.C
-		addr = srv.GetAddress()
-		retries++
-	}
-	if addr == "" {
-		return fmt.Errorf("failed to start HTTP server: GRPC server unavailable")
-	}
-
-	conn, err := grpc.NewClient(addr, dialOpts...)
-	if err != nil {
-		return fmt.Errorf("unable to dial GRPC: %w", err)
-	}
-
-	muxOpts := []runtime.ServeMuxOption{
-		runtime.WithForwardResponseOption(httpmiddleware.HTTPResponseModifier),
-		runtime.WithErrorHandler(func(c context.Context,
-			sr *runtime.ServeMux, mm runtime.Marshaler, w http.ResponseWriter, r *http.Request, e error) {
-			intCode := serverErrors.ConvertToEncodedErrorCode(status.Convert(e))
-			httpmiddleware.CustomHTTPErrorHandler(c, w, r, serverErrors.NewEncodedError(intCode, e.Error()))
-		}),
-		runtime.WithStreamErrorHandler(func(ctx context.Context, e error) *status.Status {
-			intCode := serverErrors.ConvertToEncodedErrorCode(status.Convert(e))
-			encodedErr := serverErrors.NewEncodedError(intCode, e.Error())
-			return status.Convert(encodedErr)
-		}),
-		runtime.WithHealthzEndpoint(healthv1pb.NewHealthClient(conn)),
-		runtime.WithOutgoingHeaderMatcher(func(s string) (string, bool) { return s, true }),
-	}
-	mux := runtime.NewServeMux(muxOpts...)
-	if err := openfgav1.RegisterOpenFGAServiceHandler(context.TODO(), mux, conn); err != nil {
-		return fmt.Errorf("failed to register gateway handler: %w", err)
-	}
-
-	httpServer := &http.Server{
-		Addr: cfg.Zanzana.HttpAddr,
-		Handler: cors.New(cors.Options{
-			AllowedOrigins:   []string{"*"},
-			AllowCredentials: true,
-			AllowedHeaders:   []string{"*"},
-			AllowedMethods: []string{http.MethodGet, http.MethodPost,
-				http.MethodHead, http.MethodPatch, http.MethodDelete, http.MethodPut},
-		}).Handler(mux),
-		ReadHeaderTimeout: 30 * time.Second,
-	}
-	go func() {
-		err = httpServer.ListenAndServe()
-		if err != nil {
-			logger.Error("failed to start http server", zapcore.Field{Key: "err", Type: zapcore.ErrorType, Interface: err})
-		}
-	}()
-	logger.Info(fmt.Sprintf("OpenFGA HTTP server listening on '%s'...", httpServer.Addr))
-	return nil
+	return zserver.StartOpenFGAHttpSever(cfg, srv, logger)
 }

pkg/services/authz/zanzana/server/server.go

@@ -0,0 +1,113 @@
+package server
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"time"
+
+	openfgav1 "github.com/openfga/api/proto/openfga/v1"
+	httpmiddleware "github.com/openfga/openfga/pkg/middleware/http"
+	"github.com/openfga/openfga/pkg/server"
+	serverErrors "github.com/openfga/openfga/pkg/server/errors"
+	"github.com/openfga/openfga/pkg/storage"
+
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"github.com/rs/cors"
+	"go.uber.org/zap/zapcore"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+	healthv1pb "google.golang.org/grpc/health/grpc_health_v1"
+	"google.golang.org/grpc/status"
+
+	"github.com/grafana/grafana/pkg/infra/log"
+	"github.com/grafana/grafana/pkg/services/grpcserver"
+	"github.com/grafana/grafana/pkg/setting"
+
+	zlogger "github.com/grafana/grafana/pkg/services/authz/zanzana/logger"
+)
+
+func New(store storage.OpenFGADatastore, logger log.Logger) (*server.Server, error) {
+	// FIXME(kalleep): add support for more options, tracing etc
+	opts := []server.OpenFGAServiceV1Option{
+		server.WithDatastore(store),
+		server.WithLogger(zlogger.New(logger)),
+	}
+
+	// FIXME(kalleep): Interceptors
+	// We probably need to at least need to add store id interceptor also
+	// would be nice to inject our own requestid?
+	srv, err := server.NewServerWithOpts(opts...)
+	if err != nil {
+		return nil, err
+	}
+
+	return srv, nil
+}
+
+// StartOpenFGAHttpSever starts HTTP server which allows to use fga cli.
+func StartOpenFGAHttpSever(cfg *setting.Cfg, srv grpcserver.Provider, logger log.Logger) error {
+	dialOpts := []grpc.DialOption{
+		grpc.WithTransportCredentials(insecure.NewCredentials()),
+	}
+
+	addr := srv.GetAddress()
+	// Wait until GRPC server is initialized
+	ticker := time.NewTicker(100 * time.Millisecond)
+	defer ticker.Stop()
+	maxRetries := 100
+	retries := 0
+	for addr == "" && retries < maxRetries {
+		<-ticker.C
+		addr = srv.GetAddress()
+		retries++
+	}
+	if addr == "" {
+		return fmt.Errorf("failed to start HTTP server: GRPC server unavailable")
+	}
+
+	conn, err := grpc.NewClient(addr, dialOpts...)
+	if err != nil {
+		return fmt.Errorf("unable to dial GRPC: %w", err)
+	}
+
+	muxOpts := []runtime.ServeMuxOption{
+		runtime.WithForwardResponseOption(httpmiddleware.HTTPResponseModifier),
+		runtime.WithErrorHandler(func(c context.Context,
+			sr *runtime.ServeMux, mm runtime.Marshaler, w http.ResponseWriter, r *http.Request, e error) {
+			intCode := serverErrors.ConvertToEncodedErrorCode(status.Convert(e))
+			httpmiddleware.CustomHTTPErrorHandler(c, w, r, serverErrors.NewEncodedError(intCode, e.Error()))
+		}),
+		runtime.WithStreamErrorHandler(func(ctx context.Context, e error) *status.Status {
+			intCode := serverErrors.ConvertToEncodedErrorCode(status.Convert(e))
+			encodedErr := serverErrors.NewEncodedError(intCode, e.Error())
+			return status.Convert(encodedErr)
+		}),
+		runtime.WithHealthzEndpoint(healthv1pb.NewHealthClient(conn)),
+		runtime.WithOutgoingHeaderMatcher(func(s string) (string, bool) { return s, true }),
+	}
+	mux := runtime.NewServeMux(muxOpts...)
+	if err := openfgav1.RegisterOpenFGAServiceHandler(context.TODO(), mux, conn); err != nil {
+		return fmt.Errorf("failed to register gateway handler: %w", err)
+	}
+
+	httpServer := &http.Server{
+		Addr: cfg.Zanzana.HttpAddr,
+		Handler: cors.New(cors.Options{
+			AllowedOrigins:   []string{"*"},
+			AllowCredentials: true,
+			AllowedHeaders:   []string{"*"},
+			AllowedMethods: []string{http.MethodGet, http.MethodPost,
+				http.MethodHead, http.MethodPatch, http.MethodDelete, http.MethodPut},
+		}).Handler(mux),
+		ReadHeaderTimeout: 30 * time.Second,
+	}
+	go func() {
+		err = httpServer.ListenAndServe()
+		if err != nil {
+			logger.Error("failed to start http server", zapcore.Field{Key: "err", Type: zapcore.ErrorType, Interface: err})
+		}
+	}()
+	logger.Info(fmt.Sprintf("OpenFGA HTTP server listening on '%s'...", httpServer.Addr))
+	return nil
+}

pkg/services/authz/zanzana/store.go

@@ -1,128 +1,18 @@
 package zanzana
 
 import (
-	"fmt"
-	"time"
-
-	"xorm.io/xorm"
-
-	"github.com/openfga/openfga/assets"
 	"github.com/openfga/openfga/pkg/storage"
-	"github.com/openfga/openfga/pkg/storage/mysql"
-	"github.com/openfga/openfga/pkg/storage/postgres"
-	"github.com/openfga/openfga/pkg/storage/sqlcommon"
 
 	"github.com/grafana/grafana/pkg/infra/db"
 	"github.com/grafana/grafana/pkg/infra/log"
-	zstore "github.com/grafana/grafana/pkg/services/authz/zanzana/store"
-	"github.com/grafana/grafana/pkg/services/authz/zanzana/store/migration"
-	"github.com/grafana/grafana/pkg/services/authz/zanzana/store/sqlite"
-	"github.com/grafana/grafana/pkg/services/sqlstore"
-	"github.com/grafana/grafana/pkg/services/sqlstore/migrator"
 	"github.com/grafana/grafana/pkg/setting"
+
+	"github.com/grafana/grafana/pkg/services/authz/zanzana/store"
 )
 
-// FIXME(kalleep): Add sqlite data store.
-// There is no support for sqlite atm but we are working on adding it: https://github.com/openfga/openfga/pull/1615
 func NewStore(cfg *setting.Cfg, logger log.Logger) (storage.OpenFGADatastore, error) {
-	grafanaDBCfg, zanzanaDBCfg, err := parseConfig(cfg, logger)
-	if err != nil {
-		return nil, fmt.Errorf("failed to parse database config: %w", err)
-	}
-
-	switch grafanaDBCfg.Type {
-	case migrator.SQLite:
-		connStr := grafanaDBCfg.ConnectionString
-		// Initilize connection using xorm engine so we can reuse it for both migrations and data store
-		engine, err := xorm.NewEngine(grafanaDBCfg.Type, connStr)
-		if err != nil {
-			return nil, fmt.Errorf("failed to connect to database: %w", err)
-		}
-
-		m := migrator.NewMigrator(engine, cfg)
-		if err := migration.RunWithMigrator(m, cfg, zstore.EmbedMigrations, zstore.SQLiteMigrationDir); err != nil {
-			return nil, fmt.Errorf("failed to run migrations: %w", err)
-		}
-
-		return sqlite.NewWithDB(engine.DB().DB, &sqlite.Config{
-			Config:       zanzanaDBCfg,
-			QueryRetries: grafanaDBCfg.QueryRetries,
-		})
-	case migrator.MySQL:
-		// For mysql we need to pass parseTime parameter in connection string
-		connStr := grafanaDBCfg.ConnectionString + "&parseTime=true"
-		if err := migration.Run(cfg, migrator.MySQL, connStr, assets.EmbedMigrations, assets.MySQLMigrationDir); err != nil {
-			return nil, fmt.Errorf("failed to run migrations: %w", err)
-		}
-
-		return mysql.New(connStr, zanzanaDBCfg)
-	case migrator.Postgres:
-		connStr := grafanaDBCfg.ConnectionString
-		if err := migration.Run(cfg, migrator.Postgres, connStr, assets.EmbedMigrations, assets.PostgresMigrationDir); err != nil {
-			return nil, fmt.Errorf("failed to run migrations: %w", err)
-		}
-
-		return postgres.New(connStr, zanzanaDBCfg)
-	}
-
-	// Should never happen
-	return nil, fmt.Errorf("unsupported database engine: %s", grafanaDBCfg.Type)
+	return store.NewStore(cfg, logger)
 }
-
 func NewEmbeddedStore(cfg *setting.Cfg, db db.DB, logger log.Logger) (storage.OpenFGADatastore, error) {
-	grafanaDBCfg, zanzanaDBCfg, err := parseConfig(cfg, logger)
-	if err != nil {
-		return nil, fmt.Errorf("failed to parse database config: %w", err)
-	}
-
-	m := migrator.NewMigrator(db.GetEngine(), cfg)
-
-	switch grafanaDBCfg.Type {
-	case migrator.SQLite:
-		if err := migration.RunWithMigrator(m, cfg, zstore.EmbedMigrations, zstore.SQLiteMigrationDir); err != nil {
-			return nil, fmt.Errorf("failed to run migrations: %w", err)
-		}
-
-		// FIXME(kalleep): We should work on getting sqlite implemtation merged upstream and replace this one
-		return sqlite.NewWithDB(db.GetEngine().DB().DB, &sqlite.Config{
-			Config:       zanzanaDBCfg,
-			QueryRetries: grafanaDBCfg.QueryRetries,
-		})
-	case migrator.MySQL:
-		if err := migration.RunWithMigrator(m, cfg, assets.EmbedMigrations, assets.MySQLMigrationDir); err != nil {
-			return nil, fmt.Errorf("failed to run migrations: %w", err)
-		}
-
-		// For mysql we need to pass parseTime parameter in connection string
-		return mysql.New(grafanaDBCfg.ConnectionString+"&parseTime=true", zanzanaDBCfg)
-	case migrator.Postgres:
-		if err := migration.RunWithMigrator(m, cfg, assets.EmbedMigrations, assets.PostgresMigrationDir); err != nil {
-			return nil, fmt.Errorf("failed to run migrations: %w", err)
-		}
-
-		return postgres.New(grafanaDBCfg.ConnectionString, zanzanaDBCfg)
-	}
-
-	// Should never happen
-	return nil, fmt.Errorf("unsupported database engine: %s", db.GetDialect().DriverName())
-}
-
-func parseConfig(cfg *setting.Cfg, logger log.Logger) (*sqlstore.DatabaseConfig, *sqlcommon.Config, error) {
-	sec := cfg.Raw.Section("database")
-	grafanaDBCfg, err := sqlstore.NewDatabaseConfig(cfg, nil)
-	if err != nil {
-		return nil, nil, nil
-	}
-
-	zanzanaDBCfg := &sqlcommon.Config{
-		Logger:                 newZanzanaLogger(logger),
-		MaxTuplesPerWriteField: 100,
-		MaxTypesPerModelField:  100,
-		MaxOpenConns:           grafanaDBCfg.MaxOpenConn,
-		MaxIdleConns:           grafanaDBCfg.MaxIdleConn,
-		ConnMaxLifetime:        time.Duration(grafanaDBCfg.ConnMaxLifetime) * time.Second,
-		ExportMetrics:          sec.Key("instrument_queries").MustBool(false),
-	}
-
-	return grafanaDBCfg, zanzanaDBCfg, nil
+	return store.NewEmbeddedStore(cfg, db, logger)
 }

pkg/services/authz/zanzana/store/assets/assets.go

@@ -1,4 +1,4 @@
-package store
+package assets
 
 import "embed"
 

pkg/services/authz/zanzana/store/sqlite/store_test.go

@@ -19,10 +19,11 @@ import (
 	"github.com/openfga/openfga/pkg/typesystem"
 
 	"github.com/grafana/grafana/pkg/infra/db"
-	"github.com/grafana/grafana/pkg/services/authz/zanzana/store"
-	"github.com/grafana/grafana/pkg/services/authz/zanzana/store/migration"
 	"github.com/grafana/grafana/pkg/services/sqlstore/migrator"
 	"github.com/grafana/grafana/pkg/tests/testsuite"
+
+	zassets "github.com/grafana/grafana/pkg/services/authz/zanzana/store/assets"
+	"github.com/grafana/grafana/pkg/services/authz/zanzana/store/migration"
 )
 
 func TestMain(m *testing.M) {
@@ -287,7 +288,7 @@ func sqliteIntegrationTest(tb testing.TB) *sql.DB {
 	db, cfg := db.InitTestDBWithCfg(tb)
 
 	m := migrator.NewMigrator(db.GetEngine(), cfg)
-	err := migration.RunWithMigrator(m, cfg, store.EmbedMigrations, store.SQLiteMigrationDir)
+	err := migration.RunWithMigrator(m, cfg, zassets.EmbedMigrations, zassets.SQLiteMigrationDir)
 	require.NoError(tb, err)
 
 	return db.GetEngine().DB().DB

pkg/services/authz/zanzana/store/store.go

@@ -0,0 +1,128 @@
+package store
+
+import (
+	"fmt"
+	"time"
+
+	"xorm.io/xorm"
+
+	"github.com/openfga/openfga/assets"
+	"github.com/openfga/openfga/pkg/storage"
+	"github.com/openfga/openfga/pkg/storage/mysql"
+	"github.com/openfga/openfga/pkg/storage/postgres"
+	"github.com/openfga/openfga/pkg/storage/sqlcommon"
+
+	"github.com/grafana/grafana/pkg/infra/db"
+	"github.com/grafana/grafana/pkg/infra/log"
+	"github.com/grafana/grafana/pkg/services/sqlstore"
+	"github.com/grafana/grafana/pkg/services/sqlstore/migrator"
+	"github.com/grafana/grafana/pkg/setting"
+
+	zlogger "github.com/grafana/grafana/pkg/services/authz/zanzana/logger"
+	zassets "github.com/grafana/grafana/pkg/services/authz/zanzana/store/assets"
+	"github.com/grafana/grafana/pkg/services/authz/zanzana/store/migration"
+	"github.com/grafana/grafana/pkg/services/authz/zanzana/store/sqlite"
+)
+
+func NewStore(cfg *setting.Cfg, logger log.Logger) (storage.OpenFGADatastore, error) {
+	grafanaDBCfg, zanzanaDBCfg, err := parseConfig(cfg, logger)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse database config: %w", err)
+	}
+
+	switch grafanaDBCfg.Type {
+	case migrator.SQLite:
+		connStr := grafanaDBCfg.ConnectionString
+		// Initilize connection using xorm engine so we can reuse it for both migrations and data store
+		engine, err := xorm.NewEngine(grafanaDBCfg.Type, connStr)
+		if err != nil {
+			return nil, fmt.Errorf("failed to connect to database: %w", err)
+		}
+
+		m := migrator.NewMigrator(engine, cfg)
+		if err := migration.RunWithMigrator(m, cfg, zassets.EmbedMigrations, zassets.SQLiteMigrationDir); err != nil {
+			return nil, fmt.Errorf("failed to run migrations: %w", err)
+		}
+
+		return sqlite.NewWithDB(engine.DB().DB, &sqlite.Config{
+			Config:       zanzanaDBCfg,
+			QueryRetries: grafanaDBCfg.QueryRetries,
+		})
+	case migrator.MySQL:
+		// For mysql we need to pass parseTime parameter in connection string
+		connStr := grafanaDBCfg.ConnectionString + "&parseTime=true"
+		if err := migration.Run(cfg, migrator.MySQL, connStr, assets.EmbedMigrations, assets.MySQLMigrationDir); err != nil {
+			return nil, fmt.Errorf("failed to run migrations: %w", err)
+		}
+
+		return mysql.New(connStr, zanzanaDBCfg)
+	case migrator.Postgres:
+		connStr := grafanaDBCfg.ConnectionString
+		if err := migration.Run(cfg, migrator.Postgres, connStr, assets.EmbedMigrations, assets.PostgresMigrationDir); err != nil {
+			return nil, fmt.Errorf("failed to run migrations: %w", err)
+		}
+
+		return postgres.New(connStr, zanzanaDBCfg)
+	}
+
+	// Should never happen
+	return nil, fmt.Errorf("unsupported database engine: %s", grafanaDBCfg.Type)
+}
+
+func NewEmbeddedStore(cfg *setting.Cfg, db db.DB, logger log.Logger) (storage.OpenFGADatastore, error) {
+	grafanaDBCfg, zanzanaDBCfg, err := parseConfig(cfg, logger)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse database config: %w", err)
+	}
+
+	m := migrator.NewMigrator(db.GetEngine(), cfg)
+
+	switch grafanaDBCfg.Type {
+	case migrator.SQLite:
+		if err := migration.RunWithMigrator(m, cfg, zassets.EmbedMigrations, zassets.SQLiteMigrationDir); err != nil {
+			return nil, fmt.Errorf("failed to run migrations: %w", err)
+		}
+
+		// FIXME(kalleep): We should work on getting sqlite implemtation merged upstream and replace this one
+		return sqlite.NewWithDB(db.GetEngine().DB().DB, &sqlite.Config{
+			Config:       zanzanaDBCfg,
+			QueryRetries: grafanaDBCfg.QueryRetries,
+		})
+	case migrator.MySQL:
+		if err := migration.RunWithMigrator(m, cfg, assets.EmbedMigrations, assets.MySQLMigrationDir); err != nil {
+			return nil, fmt.Errorf("failed to run migrations: %w", err)
+		}
+
+		// For mysql we need to pass parseTime parameter in connection string
+		return mysql.New(grafanaDBCfg.ConnectionString+"&parseTime=true", zanzanaDBCfg)
+	case migrator.Postgres:
+		if err := migration.RunWithMigrator(m, cfg, assets.EmbedMigrations, assets.PostgresMigrationDir); err != nil {
+			return nil, fmt.Errorf("failed to run migrations: %w", err)
+		}
+
+		return postgres.New(grafanaDBCfg.ConnectionString, zanzanaDBCfg)
+	}
+
+	// Should never happen
+	return nil, fmt.Errorf("unsupported database engine: %s", db.GetDialect().DriverName())
+}
+
+func parseConfig(cfg *setting.Cfg, logger log.Logger) (*sqlstore.DatabaseConfig, *sqlcommon.Config, error) {
+	sec := cfg.Raw.Section("database")
+	grafanaDBCfg, err := sqlstore.NewDatabaseConfig(cfg, nil)
+	if err != nil {
+		return nil, nil, nil
+	}
+
+	zanzanaDBCfg := &sqlcommon.Config{
+		Logger:                 zlogger.New(logger),
+		MaxTuplesPerWriteField: 100,
+		MaxTypesPerModelField:  100,
+		MaxOpenConns:           grafanaDBCfg.MaxOpenConn,
+		MaxIdleConns:           grafanaDBCfg.MaxIdleConn,
+		ConnMaxLifetime:        time.Duration(grafanaDBCfg.ConnMaxLifetime) * time.Second,
+		ExportMetrics:          sec.Key("instrument_queries").MustBool(false),
+	}
+
+	return grafanaDBCfg, zanzanaDBCfg, nil
+}