add extra storage config for dividing table

pkg/storage/internalstorage/config.go

@@ -15,6 +15,8 @@ import (
 	"gopkg.in/natefinch/lumberjack.v2"
 	"gorm.io/gorm/logger"
 	"k8s.io/klog/v2"
+
+	clusterv1alpha2 "github.com/clusterpedia-io/api/cluster/v1alpha2"
 )
 
 const (
@@ -24,6 +26,14 @@ const (
 	databasePasswordEnvName = "DB_PASSWORD"
 )
 
+type DivisionPolicy string
+
+const (
+	DivisionPolicyNone          DivisionPolicy = "None"
+	DivisionPolicyGroupResource DivisionPolicy = "GroupResource"
+	DivisionPolicyCustom        DivisionPolicy = "Custom"
+)
+
 type Config struct {
 	Type string `env:"DB_TYPE" required:"true"`
 	DSN  string `env:"DB_DSN"`
@@ -48,9 +58,30 @@ type Config struct {
 
 	Params map[string]string `yaml:"params"`
 
+	AutoMigration  *bool            `yaml:"autoMigration"` // If set to false, no tables will be created
+	DivisionPolicy DivisionPolicy   `yaml:"divisionPolicy"`
+	Mapper         []ResourceMapper `yaml:"mapper"` // Only DivisionPolicy is DivisionPolicyCustom it need to specify the mapping between resource and table
+
 	Log *LogConfig `yaml:"log"`
 }
 
+type ResourceMapper struct {
+	Table     *Table                                  `yaml:"table"`
+	Resources []clusterv1alpha2.ClusterGroupResources `yaml:"resources"`
+}
+
+type Table struct {
+	Name        string       `yaml:"name"`
+	ExtraFields []ExtraField `yaml:"extraFields"`
+}
+
+type ExtraField struct {
+	Name      string `yaml:"name"`
+	PlainPath string `yaml:"plainPath"`
+	Type      string `yaml:"type"`
+	Index     string `yaml:"index"`
+}
+
 type LogConfig struct {
 	Stdout                    bool               `yaml:"stdout"`
 	Level                     string             `yaml:"level"`