devops tenant api

Signed-off-by: runzexia <runzexia@yunify.com>

pkg/simple/client/devops_mysql/mysql.go

@@ -0,0 +1,56 @@
+/*
+Copyright 2018 The KubeSphere Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package devops_mysql
+
+import (
+	"flag"
+	"github.com/gocraft/dbr"
+	"github.com/golang/glog"
+
+	"kubesphere.io/kubesphere/pkg/db"
+	"sync"
+	"time"
+)
+
+var (
+	dbClientOnce sync.Once
+	dsn          string
+	dbClient     *db.Database
+)
+
+func init() {
+	flag.StringVar(&dsn, "devops-database-connection", "root@tcp(127.0.0.1:3306)/devops", "data source name")
+}
+
+var defaultEventReceiver = db.EventReceiver{}
+
+func OpenDatabase() *db.Database {
+	dbClientOnce.Do(func() {
+		conn, err := dbr.Open("mysql", dsn+"?parseTime=1&multiStatements=1&charset=utf8mb4&collation=utf8mb4_unicode_ci", &defaultEventReceiver)
+		if err != nil {
+			glog.Fatal(err)
+		}
+		conn.SetMaxIdleConns(100)
+		conn.SetMaxOpenConns(100)
+		conn.SetConnMaxLifetime(10 * time.Second)
+		dbClient = &db.Database{
+			Session: conn.NewSession(nil),
+		}
+		err = dbClient.Ping()
+		if err != nil {
+			glog.Error(err)
+		}
+	})
+	return dbClient
+}