mirror of https://github.com/minio/minio.git
137 lines
2.9 KiB
Go
137 lines
2.9 KiB
Go
/*
|
|
* Minio Cloud Storage, (C) 2016 Minio, 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,
|
|
* 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 main
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/Sirupsen/logrus"
|
|
"github.com/minio/redigo/redis"
|
|
)
|
|
|
|
// redisLogger to send logs to Redis server
|
|
type redisLogger struct {
|
|
Enable bool `json:"enable"`
|
|
Level string `json:"level"`
|
|
Addr string `json:"address"`
|
|
Password string `json:"password"`
|
|
Key string `json:"key"`
|
|
}
|
|
|
|
type redisConn struct {
|
|
*redis.Pool
|
|
params redisLogger
|
|
}
|
|
|
|
// Dial a new connection to redis instance at addr, optionally with a password if any.
|
|
func dialRedis(addr, password string) (*redis.Pool, error) {
|
|
rPool := &redis.Pool{
|
|
MaxIdle: 3,
|
|
IdleTimeout: 240 * time.Second,
|
|
Dial: func() (redis.Conn, error) {
|
|
c, err := redis.Dial("tcp", addr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if password != "" {
|
|
if _, err := c.Do("AUTH", password); err != nil {
|
|
c.Close()
|
|
return nil, err
|
|
}
|
|
}
|
|
return c, err
|
|
},
|
|
TestOnBorrow: func(c redis.Conn, t time.Time) error {
|
|
_, err := c.Do("PING")
|
|
return err
|
|
},
|
|
}
|
|
|
|
// Test if connection with REDIS can be established.
|
|
rConn := rPool.Get()
|
|
defer rConn.Close()
|
|
|
|
// Check connection.
|
|
_, err := rConn.Do("PING")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Return pool.
|
|
return rPool, nil
|
|
}
|
|
|
|
func enableRedisLogger() error {
|
|
rLogger := serverConfig.GetRedisLogger()
|
|
if !rLogger.Enable {
|
|
return errLoggerNotEnabled
|
|
}
|
|
|
|
// Dial redis.
|
|
rPool, err := dialRedis(rLogger.Addr, rLogger.Password)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
rrConn := redisConn{
|
|
Pool: rPool,
|
|
params: rLogger,
|
|
}
|
|
|
|
lvl, err := logrus.ParseLevel(rLogger.Level)
|
|
fatalIf(err, "Unknown log level found in the config file.")
|
|
|
|
// Add a elasticsearch hook.
|
|
log.Hooks.Add(rrConn)
|
|
|
|
// Set default JSON formatter.
|
|
log.Formatter = new(logrus.JSONFormatter)
|
|
|
|
// Set default log level to info.
|
|
log.Level = lvl
|
|
|
|
return nil
|
|
}
|
|
|
|
func (r redisConn) Fire(entry *logrus.Entry) error {
|
|
rConn := r.Pool.Get()
|
|
defer rConn.Close()
|
|
|
|
data, err := entry.String()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
_, err = rConn.Do("RPUSH", r.params.Key, data)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Required for logrus hook implementation
|
|
func (r redisConn) Levels() []logrus.Level {
|
|
return []logrus.Level{
|
|
logrus.PanicLevel,
|
|
logrus.FatalLevel,
|
|
logrus.ErrorLevel,
|
|
logrus.WarnLevel,
|
|
logrus.InfoLevel,
|
|
logrus.DebugLevel,
|
|
}
|
|
}
|