You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: tidb_member_manager.go
    path of file: ./repos/tidb-operator/pkg/manager/member
    
    the code of the file until where you have to start completion: // Copyright 2018 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.

package member

import (
	"context"
	"crypto/tls"
	"database/sql"
	"fmt"
	"path"
	"regexp"
	"strconv"
	"strings"
	"time"

	"github.com/pingcap/advanced-statefulset/client/apis/apps/v1/helper"
	"github.com/pingcap/tidb-operator/pkg/apis/label"
	"github.com/pingcap/tidb-operator/pkg/apis/pingcap/v1alpha1"
	"github.com/pingcap/tidb-operator/pkg/backup/constants"
	"github.com/pingcap/tidb-operator/pkg/controller"
	"github.com/pingcap/tidb-operator/pkg/manager"
	"github.com/pingcap/tidb-operator/pkg/manager/member/startscript"
	"github.co
    
func (m *tidbMemberManager) syncInitializer(tc *v1alpha1.TidbCluster) {
	// set random password
	ns := tc.Namespace
	tcName := tc.Name
	//check endpoints ready
	isTiDBReady := false
	eps, epErr := m.deps.EndpointLister.Endpoints(ns).Get(controller.TiDBMemberName(tcName))
	if epErr != nil {
		klog.Errorf("Failed to get endpoints %s for cluster %s/%s, err: %s", controller.TiDBMemberName(tcName), ns, tcName, epErr)
		return
	}
	// TiDB service has endpoints
	if eps != nil && len(eps.Subsets) > 0 && len(eps.Subsets[0].Addresses) > 0 {
		isTiDBReady = true
	}

	if !isTiDBReady {
		klog.Infof("Wait for TiDB ready for cluster %s/%s", ns, tcName)
		return
	}
	// sync password secret
	var password string
	secretName := controller.TiDBInitSecret(tcName)
	secret, err := m.deps.SecretLister.Secrets(ns).Get(secretName)
	passwordSecretExist := true
	if err != nil {
		if errors.IsNotFound(err) {
			passwordSecretExist = false
		} else {
			klog.Errorf("Failed to get secret %s for cluster %s/%s, err: %s", secretName, ns, tcName, epErr)
			return
		}
	}

	if !passwordSecretExist {
		klog.Infof("Create random password secret for cluster %s/%s", ns, tcName)
		var secret *corev1.Secret
		secret, password = m.BuildRandomPasswordSecret(tc)
		err := m.deps.TypedControl.Create(tc, secret)
		if err != nil {
			klog.Errorf("Failed to create secret %s for cluster %s:%s, err: %s", secretName, ns, tcName, err)
			return
		}
	} else {
		password = string(secret.Data[constants.TidbRootKey])
	}
	// init password
	var db *sql.DB
	dsn := util.GetDSN(tc, "")
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()
	db, err = util.OpenDB(ctx, dsn)

	if err != nil {
		if strings.Contains(fmt.Sprint(err), "Access denied") {
			klog.Errorf("Can't connect to the TiDB service of the TiDB cluster [%s:%s], error: %s", ns, tcName, err)
			val := true
			tc.Status.TiDB.PasswordInitialized = &val
			return
		}
		if ctx.Err() != nil {
			klog.Errorf("Can't connect to the TiDB service of the TiDB cluster [%s:%s], error: %s, context error: %s", ns, tcName, err, ctx.Err())
		} else {
			klog.Errorf("Can't connect to the TiDB service of the TiDB cluster [%s:%s], error: %s", ns, tcName, err)
		}
		return
	} else {
		klog.Infof("Set random password for cluster %s/%s", ns, tcName)
		defer func(db *sql.DB) {
			err := db.Close()
			if err != nil {
				klog.Errorf("Closed db connection for TiDB cluster %s/%s, err: %v", ns, tcName, err)
			}
		}(db)
		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
		defer cancel()
		err = util.SetPassword(ctx, db, password)
		if err != nil {
			klog.Errorf("Fail to set TiDB password for TiDB cluster %s/%s, err: %s", ns, tcName, err)
			return
		}
		val := true
		tc.Status.TiDB.PasswordInitialized = &val
		klog.Infof("Set password successfully for TiDB cluster %s/%s", ns, tcName)
	}
}