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actions.go
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package main
import (
"fmt"
//"log"
"errors"
"net"
"net/http"
"os"
"os/exec"
"path/filepath"
"strings"
"time"
log "github.com/cihub/seelog"
"github.com/facebookgo/atomicfile"
"github.com/goji/httpauth"
"github.com/urfave/cli"
"strconv"
)
type Server struct {
HTTPServer bool
UnixServer bool
SockFile string
PidFile string
Auth bool
AuthUser string
AuthPasswd string
IPFile string
HTTPAddr string
}
var (
errNotConfigured = errors.New("pidfile not configured")
)
func NewSer() Server {
return Server{
Cfg.Server.HttpServer.Enabled,
Cfg.Server.UnixServer.Enabled,
Cfg.Server.UnixServer.SockFile,
Cfg.Server.PidFile,
Cfg.Server.Auth.Enabled,
Cfg.Server.Auth.User,
Cfg.Server.Auth.Password,
Cfg.Server.Auth.IPFile,
Cfg.Server.HttpServer.Addr,
}
}
func actionStartServer(c *cli.Context) error {
foregroud := c.Bool("foreground")
ser := NewSer()
// 检查是否已经有服务启动了.
if actionServerStatus() == nil {
return fmt.Errorf("server is already running\n")
}
return ser.startServer(foregroud)
}
// start server , HTTP or Unix
func (s *Server) startServer(foregroud bool) error {
// start http server
// 依赖的变量
httpAddr := s.HTTPAddr
if strings.HasPrefix(s.HTTPAddr, ":") {
httpAddr = "0.0.0.0" + s.HTTPAddr
}
var listenAddr string
if s.UnixServer {
listenAddr = s.SockFile
} else if s.HTTPServer {
listenAddr = httpAddr
} else {
listenAddr = ""
}
//日志目录添加
logC := Cfg.Server.Log
logFile := filepath.Join(logC.LogPath, DefaultGoSuvLogFile)
if err := os.MkdirAll(logC.LogPath, os.FileMode(0755)); err != nil {
log.Criticalf("mkdir log path %s failed. %+v", logC.LogPath, err)
return err
}
syncLogger(logFile, logC.Level, logC.FileMax, logC.Backups)
//日志设置
logFd, err := os.OpenFile(logFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
if err != nil {
return fmt.Errorf("create file %s failed: %v", logFile, err)
}
suv, hdlr, err := newSupervisorHandler()
if err != nil {
return err
}
//添加密码验证
if s.Auth {
hdlr = httpauth.SimpleBasicAuth(s.AuthUser, s.AuthPasswd)(hdlr)
}
http.Handle("/", hdlr)
// 直接启动
if foregroud {
log.Info("----------- start server -----------")
suv.AutoStartPrograms()
if s.UnixServer {
unixListener, err := net.Listen("unix", listenAddr)
if err != nil {
log.Critical(err)
return err
}
log.Infof("sock file %v", listenAddr)
log.Critical(http.Serve(unixListener, nil))
} else if s.HTTPServer {
log.Infof("server listen on %v", listenAddr)
log.Critical(http.ListenAndServe(listenAddr, nil))
}
return errors.New("server listen nothing ,exit .")
} else {
cmd := exec.Command(os.Args[0], "-c", CfgFile, "start-server", "-f")
cmd.Stdout = logFd
cmd.Stderr = logFd
err = cmd.Start()
if err != nil {
return err
}
// 写pidfile
if err := writePidFile(cmd.Process.Pid, s.PidFile); err != nil {
return fmt.Errorf("write pid file faild. ", s.PidFile, err)
}
select {
case err = <-GoFunc(cmd.Wait):
return fmt.Errorf("server started failed,check log %s, %v\n", logFile, err)
case <-time.After(200 * time.Millisecond):
fmt.Printf("server started, listening %s\n", listenAddr)
}
}
return nil
}
func writePidFile(pid int, pidfile string) error {
if pidfile == "" {
return errNotConfigured
}
if err := os.MkdirAll(filepath.Dir(pidfile), os.FileMode(0755)); err != nil {
return err
}
file, err := atomicfile.New(pidfile, os.FileMode(0644))
if err != nil {
return fmt.Errorf("error opening pidfile %s: %s", pidfile, err)
}
defer file.Close() // in case we fail before the explicit close
_, err = fmt.Fprintf(file, "%d", pid)
if err != nil {
return err
}
err = file.Close()
if err != nil {
return err
}
return nil
}
func syncLogger(logFile string, logLevel string, logFileMax int, logBackups int) {
var LogConfig = `
<seelog minlevel="` + logLevel + `">
<outputs formatid="common">
<rollingfile type="size" filename="` + logFile + `" maxsize="` + strconv.Itoa(logFileMax) + `" maxrolls="` + strconv.Itoa(logBackups) + `"/>
</outputs>
<formats>
<format id="colored" format="%Time %EscM(46)%Level%EscM(49) %Msg%n%EscM(0)"/>
<format id="common" format="%Date/%Time [%LEV] [%File:%Line] %Msg%n" />
<format id="critical" format="%Date/%Time %File:%Line %Func %Msg%n" />
</formats>
</seelog>
`
logger, _ := log.LoggerFromConfigAsBytes([]byte(LogConfig))
log.UseLogger(logger)
}