github.com/XiaoMi/Gaea@v1.2.5/cmd/gaea/main.go (about)

     1  // Copyright 2019 The Gaea Authors. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package main
    16  
    17  import (
    18  	"flag"
    19  	"fmt"
    20  	"os"
    21  	"os/signal"
    22  	"sync"
    23  	"syscall"
    24  
    25  	"github.com/XiaoMi/Gaea/core"
    26  	"github.com/XiaoMi/Gaea/log"
    27  	"github.com/XiaoMi/Gaea/log/xlog"
    28  	"github.com/XiaoMi/Gaea/models"
    29  	"github.com/XiaoMi/Gaea/proxy/server"
    30  )
    31  
    32  var configFile = flag.String("config", "etc/gaea.ini", "gaea config file")
    33  var info = flag.Bool("info", false, "show info of gaea")
    34  
    35  func main() {
    36  	flag.Parse()
    37  	if *info {
    38  		fmt.Printf("Build Version Information:%s\n", core.Info.LongForm())
    39  		return
    40  	}
    41  
    42  	fmt.Printf("Build Version Information:%s\n", core.Info.LongForm())
    43  
    44  	// init config of gaea proxy
    45  	cfg, err := models.ParseProxyConfigFromFile(*configFile)
    46  	if err != nil {
    47  		fmt.Printf("parse config file error:%v\n", err.Error())
    48  		return
    49  	}
    50  
    51  	if err = initXLog(cfg.LogOutput, cfg.LogPath, cfg.LogFileName, cfg.LogLevel, cfg.Service); err != nil {
    52  		fmt.Printf("init xlog error: %v\n", err.Error())
    53  		return
    54  	}
    55  	defer log.Close()
    56  
    57  	// init manager
    58  	mgr, err := server.LoadAndCreateManager(cfg)
    59  	if err != nil {
    60  		log.Fatal("init manager failed, error: %v", err)
    61  		return
    62  	}
    63  
    64  	svr, err := server.NewServer(cfg, mgr)
    65  	if err != nil {
    66  		log.Fatal("NewServer error, quit. error: %s", err.Error())
    67  		return
    68  	}
    69  
    70  	sc := make(chan os.Signal, 1)
    71  	signal.Notify(sc,
    72  		syscall.SIGINT,
    73  		syscall.SIGTERM,
    74  		syscall.SIGQUIT,
    75  		syscall.SIGPIPE,
    76  		syscall.SIGUSR1,
    77  	)
    78  
    79  	var wg sync.WaitGroup
    80  	wg.Add(1)
    81  	go func() {
    82  		defer wg.Done()
    83  		for {
    84  			sig := <-sc
    85  			if sig == syscall.SIGINT || sig == syscall.SIGTERM || sig == syscall.SIGQUIT {
    86  				log.Notice("Got signal %d, quit", sig)
    87  				svr.Close()
    88  				break
    89  			} else if sig == syscall.SIGPIPE {
    90  				log.Notice("Ignore broken pipe signal")
    91  			} else if sig == syscall.SIGUSR1 {
    92  				log.Notice("Got update config signal")
    93  			}
    94  		}
    95  	}()
    96  	svr.Run()
    97  	wg.Wait()
    98  }
    99  
   100  func initXLog(output, path, filename, level, service string) error {
   101  	cfg := make(map[string]string)
   102  	cfg["path"] = path
   103  	cfg["filename"] = filename
   104  	cfg["level"] = level
   105  	cfg["service"] = service
   106  	cfg["skip"] = "5" // 设置xlog打印方法堆栈需要跳过的层数, 5目前为调用log.Debug()等方法的方法名, 比xlog默认值多一层.
   107  
   108  	logger, err := xlog.CreateLogManager(output, cfg)
   109  	if err != nil {
   110  		return err
   111  	}
   112  
   113  	log.SetGlobalLogger(logger)
   114  	return nil
   115  }