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init.go
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init.go
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package logger
import (
"context"
"io/ioutil"
"log/syslog"
"os"
"path/filepath"
"github.com/suisrc/config.zgo"
logrus_syslog "github.com/sirupsen/logrus/hooks/syslog"
)
var (
logversion = 1212
namespace = ""
spacefile = "/var/run/secrets/kubernetes.io/serviceaccount/namespace"
)
// InitLogger 初始化日志模块
func InitLogger(ctx context.Context) (func(), error) {
c := config.C.Logging
SetLevel(c.Level)
SetFormatter(c.Format)
logversion = c.Version
if bts, err := ioutil.ReadFile(spacefile); err == nil {
namespace = string(bts)
if c.SyslogTag != "" {
c.SyslogTag += "-" + namespace
}
}
// 设定日志输出
var file *os.File
if c.Output != "" {
switch c.Output {
case "stdout":
SetOutput(os.Stdout)
case "stderr":
SetOutput(os.Stderr)
case "file":
if name := c.OutputFile; name != "" {
_ = os.MkdirAll(filepath.Dir(name), 0777)
f, err := os.OpenFile(name, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0666)
if err != nil {
return nil, err
}
SetOutput(f)
file = f
}
}
}
if c.EnableSyslogHook && c.SyslogAddr != "" {
pri := syslog.LOG_INFO
hook, err := logrus_syslog.NewSyslogHook(c.SyslogNetwork, c.SyslogAddr, pri, c.SyslogTag)
if err != nil {
Errorf(ctx, "Unable to connect to local syslog daemon")
} else {
AddHook(hook)
}
}
return func() {
if file != nil {
file.Close()
}
}, nil
}