support split table for internal storage

Signed-off-by: calvin <[email protected]>

Author: calvin

examples/pediacluster.yaml

@@ -4,10 +4,10 @@ metadata:
   name: cluster-example
 spec:
   apiserver: "https://10.30.43.43:6443"
-  caData:
+  caData: 
   tokenData:
-  certData:
-  keyData:
+  certData: 
+  keyData: 
   syncResources:
     - group: apps
       resources:

internalstorage-config.yaml

@@ -0,0 +1,13 @@
+type: "mysql"
+dsn: ""
+host: "10.6.212.13"
+port: 30870
+password: dangerous0
+user: root
+database: clusterpedia
+autoMigration: true
+divisionPolicy: GroupResource
+connPool:
+  maxIdleConns: 5
+  maxOpenConns: 40
+  connMaxLifetime: 60m

pkg/storage/internalstorage/register.go

@@ -93,7 +93,12 @@ func NewStorageFactory(configPath string) (storage.StorageFactory, error) {
 	sqlDB.SetMaxOpenConns(connPool.MaxOpenConns)
 	sqlDB.SetConnMaxLifetime(connPool.ConnMaxLifetime)
 
-	return &StorageFactory{db}, nil
+	return &StorageFactory{
+		db:             db,
+		AutoMigration:  cfg.AutoMigration,
+		DivisionPolicy: cfg.DivisionPolicy,
+		Mapper:         cfg.Mapper,
+	}, nil
 }
 
 func newLogger(cfg *Config) (logger.Interface, error) {

pkg/storage/internalstorage/resource_storage.go

@@ -29,6 +29,7 @@ import (
 type ResourceStorage struct {
 	db    *gorm.DB
 	codec runtime.Codec
+	table string
 
 	storageGroupResource schema.GroupResource
 	storageVersion       schema.GroupVersion
@@ -83,7 +84,7 @@ func (s *ResourceStorage) Create(ctx context.Context, cluster string, obj runtim
 		resource.DeletedAt = sql.NullTime{Time: deletedAt.Time, Valid: true}
 	}
 
-	result := s.db.WithContext(ctx).Create(&resource)
+	result := s.db.WithContext(ctx).Table(s.table).Create(&resource)
 	return InterpretResourceDBError(cluster, metaobj.GetName(), result.Error)
 }
 
@@ -116,14 +117,19 @@ func (s *ResourceStorage) Update(ctx context.Context, cluster string, obj runtim
 		updatedResource["deleted_at"] = sql.NullTime{Time: deletedAt.Time, Valid: true}
 	}
 
-	result := s.db.WithContext(ctx).Model(&Resource{}).Where(map[string]interface{}{
-		"cluster":   cluster,
-		"group":     s.storageGroupResource.Group,
-		"version":   s.storageVersion.Version,
-		"resource":  s.storageGroupResource.Resource,
-		"namespace": metaobj.GetNamespace(),
-		"name":      metaobj.GetName(),
-	}).Updates(updatedResource)
+	result := s.db.WithContext(ctx).
+		Model(&Resource{}).
+		Where(map[string]interface{}{
+			"cluster":   cluster,
+			"group":     s.storageGroupResource.Group,
+			"version":   s.storageVersion.Version,
+			"resource":  s.storageGroupResource.Resource,
+			"namespace": metaobj.GetNamespace(),
+			"name":      metaobj.GetName(),
+		}).
+		Table(s.table).
+		Updates(updatedResource)
+
 	return InterpretResourceDBError(cluster, metaobj.GetName(), result.Error)
 }
 
@@ -144,14 +150,17 @@ func (c *ResourceStorage) ConvertDeletedObject(obj interface{}) (runtime.Object,
 }
 
 func (s *ResourceStorage) deleteObject(cluster, namespace, name string) *gorm.DB {
-	return s.db.Model(&Resource{}).Where(map[string]interface{}{
-		"cluster":   cluster,
-		"group":     s.storageGroupResource.Group,
-		"version":   s.storageVersion.Version,
-		"resource":  s.storageGroupResource.Resource,
-		"namespace": namespace,
-		"name":      name,
-	}).Delete(&Resource{})
+	return s.db.Model(&Resource{}).
+		Where(map[string]interface{}{
+			"cluster":   cluster,
+			"group":     s.storageGroupResource.Group,
+			"version":   s.storageVersion.Version,
+			"resource":  s.storageGroupResource.Resource,
+			"namespace": namespace,
+			"name":      name,
+		}).
+		Table(s.table).
+		Delete(&Resource{})
 }
 
 func (s *ResourceStorage) Delete(ctx context.Context, cluster string, obj runtime.Object) error {
@@ -167,7 +176,7 @@ func (s *ResourceStorage) Delete(ctx context.Context, cluster string, obj runtim
 }
 
 func (s *ResourceStorage) genGetObjectQuery(ctx context.Context, cluster, namespace, name string) *gorm.DB {
-	return s.db.WithContext(ctx).Model(&Resource{}).Select("object").Where(map[string]interface{}{
+	return s.db.WithContext(ctx).Model(&Resource{}).Table(s.table).Select("object").Where(map[string]interface{}{
 		"cluster":   cluster,
 		"group":     s.storageGroupResource.Group,
 		"version":   s.storageVersion.Version,
@@ -199,7 +208,7 @@ func (s *ResourceStorage) genListObjectsQuery(ctx context.Context, opts *interna
 		result = &ResourceMetadataList{}
 	}
 
-	query := s.db.WithContext(ctx).Model(&Resource{})
+	query := s.db.WithContext(ctx).Model(&Resource{}).Table(s.table)
 	query = query.Where(map[string]interface{}{
 		"group":    s.storageGroupResource.Group,
 		"version":  s.storageVersion.Version,

pkg/storage/internalstorage/storage.go

@@ -3,6 +3,8 @@ package internalstorage
 import (
 	"context"
 	"fmt"
+	"strings"
+	"sync"
 
 	"gorm.io/gorm"
 	"k8s.io/apimachinery/pkg/runtime/schema"
@@ -11,6 +13,8 @@ import (
 	"github.com/clusterpedia-io/clusterpedia/pkg/storage"
 )
 
+var mutex sync.Mutex
+
 type StorageFactory struct {
 	db             *gorm.DB
 	AutoMigration  *bool
@@ -19,34 +23,54 @@ type StorageFactory struct {
 }
 
 func (s *StorageFactory) AutoMigrate() error {
+	return nil
+}
+
+func (s *StorageFactory) GetSupportedRequestVerbs() []string {
+	return []string{"get", "list"}
+}
+
+func (s *StorageFactory) NewResourceStorage(config *storage.ResourceStorageConfig) (storage.ResourceStorage, error) {
+	mutex.Lock()
+	defer mutex.Unlock()
+
+	var table string
 	if s.AutoMigration != nil && *s.AutoMigration {
 		switch s.DivisionPolicy {
-			if err := s.db.AutoMigrate(&Resource{}); err != nil {
-				return err
-			}
 		case "", DivisionPolicyNone:
+			table = "resources"
+
+			if exist := s.db.Migrator().HasTable(table); !exist {
+				if err := s.db.AutoMigrate(&Resource{}); err != nil {
+					return nil, err
+				}
+			}
 		case DivisionPolicyGroupResource:
+			gvr := schema.GroupVersionResource{
+				Group:    config.StorageGroupResource.Group,
+				Version:  config.StorageVersion.Version,
+				Resource: config.StorageGroupResource.Resource,
+			}
 
-		}
+			table = GenerateTableFor(gvr)
+
+			if exist := s.db.Migrator().HasTable(table); !exist {
+				if err := s.db.AutoMigrate(&Resource{}); err != nil {
+					return nil, err
+				}
 
-		if s.DivisionPolicy == "" || s.DivisionPolicy == DivisionPolicyNone {
-			if err := s.db.AutoMigrate(&Resource{}); err != nil {
-				return err
+				err := s.db.Migrator().RenameTable("resources", table)
+				if err != nil {
+					return nil, err
+				}
 			}
 		}
 	}
 
-	return nil
-}
-
-func (s *StorageFactory) GetSupportedRequestVerbs() []string {
-	return []string{"get", "list"}
-}
-
-func (s *StorageFactory) NewResourceStorage(config *storage.ResourceStorageConfig) (storage.ResourceStorage, error) {
 	return &ResourceStorage{
 		db:    s.db,
 		codec: config.Codec,
+		table: table,
 
 		storageGroupResource: config.StorageGroupResource,
 		storageVersion:       config.StorageVersion,
@@ -116,3 +140,13 @@ func (s *StorageFactory) GetCollectionResources(ctx context.Context) ([]*interna
 func (s *StorageFactory) PrepareCluster(cluster string) error {
 	return nil
 }
+
+// GenerateTableFor return table name using gvr string
+func GenerateTableFor(gvr schema.GroupVersionResource) string {
+	if gvr.Group == "" {
+		return fmt.Sprintf("%s_%s", gvr.Version, gvr.Resource)
+	}
+
+	group := strings.ReplaceAll(gvr.Group, ".", "_")
+	return fmt.Sprintf("%s_%s_%s", group, gvr.Version, gvr.Resource)
+}