Merge pull request #933 from harshavardhana/enable-different-logger

Enable all config loggers

config-logger-main.go

@@ -17,7 +17,7 @@
 package main
 
 import (
-	"fmt"
+	"runtime"
 
 	"github.com/minio/cli"
 	"github.com/minio/minio-xl/pkg/probe"
@@ -32,42 +32,31 @@ var configLoggerCmd = cli.Command{
    minio config {{.Name}} - {{.Usage}}
 
 USAGE:
-   minio config {{.Name}}
+   minio config {{.Name}} OPERATION [ARGS...]
 
-`,
-}
+   OPERATION = add | list | remove
 
-// Inherit at one place
-type config struct {
-	*configV2
-}
+EXAMPLES:
+   1. Configure new mongo logger.
+      $ minio config {{.Name}} add mongo localhost:28710 mydb mylogger
 
-func (c *config) IsFileLoggingEnabled() bool {
-	if c.FileLogger.Filename != "" {
-		return true
-	}
-	return false
-}
+   2. Configure new syslog logger. NOTE: syslog logger is not supported on windows.
+      $ minio config {{.Name}} add syslog localhost:554 udp
 
-func (c *config) IsSysloggingEnabled() bool {
-	if c.SyslogLogger.Network != "" && c.SyslogLogger.Addr != "" {
-		return true
-	}
-	return false
-}
+   3. Configure new file logger. "/var/log" should be writable by user.
+      $ minio config {{.Name}} add file /var/log/minio.log
 
-func (c *config) IsMongoLoggingEnabled() bool {
-	if c.MongoLogger.Addr != "" && c.MongoLogger.DB != "" && c.MongoLogger.Collection != "" {
-		return true
-	}
-	return false
+   4. List currently configured logger.
+      $ minio config {{.Name}} list
+
+   5. Remove/Reset a configured logger.
+      $ minio config {{.Name}} remove mongo
+`,
 }
 
-func (c *config) String() string {
-	str := fmt.Sprintf("Mongo -> Addr: %s, DB: %s, Collection: %s\n", c.MongoLogger.Addr, c.MongoLogger.DB, c.MongoLogger.Collection)
-	str = str + fmt.Sprintf("Syslog -> Addr: %s, Network: %s\n", c.SyslogLogger.Addr, c.SyslogLogger.Network)
-	str = str + fmt.Sprintf("File -> Filename: %s", c.FileLogger.Filename)
-	return str
+// Inherit at one place
+type config struct {
+	*configV2
 }
 
 func mainConfigLogger(ctx *cli.Context) {
@@ -83,6 +72,9 @@ func mainConfigLogger(ctx *cli.Context) {
 			enableLog2Mongo(&config{conf}, args.Tail())
 		}
 		if args.Get(0) == "syslog" {
+			if runtime.GOOS == "windows" {
+				fatalIf(probe.NewError(errInvalidArgument), "Syslog is not supported on windows.", nil)
+			}
 			enableLog2Syslog(&config{conf}, args.Tail())
 		}
 		if args.Get(0) == "file" {
@@ -99,6 +91,9 @@ func mainConfigLogger(ctx *cli.Context) {
 			fatalIf(err.Trace(), "Unable to save config.", nil)
 		}
 		if args.Get(0) == "syslog" {
+			if runtime.GOOS == "windows" {
+				fatalIf(probe.NewError(errInvalidArgument), "Syslog is not supported on windows.", nil)
+			}
 			conf.SyslogLogger.Network = ""
 			conf.SyslogLogger.Addr = ""
 			err := saveConfig(conf)
@@ -111,7 +106,11 @@ func mainConfigLogger(ctx *cli.Context) {
 		}
 	}
 	if ctx.Args().Get(0) == "list" {
-		Println(&config{conf})
+		if globalJSONFlag {
+			Println(conf.JSON())
+			return
+		}
+		Println(conf)
 	}
 }
 

logger-syslog-hook_windows.go

@@ -0,0 +1,25 @@
+// +build windows
+
+/*
+ * Minio Cloud Storage, (C) 2015 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 "github.com/minio/minio-xl/pkg/probe"
+
+func log2Syslog(network, raddr string) *probe.Error {
+	return probe.NewError(errSysLogNotSupported)
+}

server-config.go

@@ -17,7 +17,9 @@
 package main
 
 import (
+	"encoding/json"
 	"errors"
+	"fmt"
 	"os"
 	"os/user"
 	"path/filepath"
@@ -54,6 +56,58 @@ type configV2 struct {
 	} `json:"fileLogger"`
 }
 
+func (c *configV2) IsFileLoggingEnabled() bool {
+	if c.FileLogger.Filename != "" {
+		return true
+	}
+	return false
+}
+
+func (c *configV2) IsSysloggingEnabled() bool {
+	if c.SyslogLogger.Network != "" && c.SyslogLogger.Addr != "" {
+		return true
+	}
+	return false
+}
+
+func (c *configV2) IsMongoLoggingEnabled() bool {
+	if c.MongoLogger.Addr != "" && c.MongoLogger.DB != "" && c.MongoLogger.Collection != "" {
+		return true
+	}
+	return false
+}
+
+func (c *configV2) String() string {
+	str := fmt.Sprintf("Mongo -> Addr: %s, DB: %s, Collection: %s\n", c.MongoLogger.Addr, c.MongoLogger.DB, c.MongoLogger.Collection)
+	str = str + fmt.Sprintf("Syslog -> Addr: %s, Network: %s\n", c.SyslogLogger.Addr, c.SyslogLogger.Network)
+	str = str + fmt.Sprintf("File -> Filename: %s", c.FileLogger.Filename)
+	return str
+}
+
+func (c *configV2) JSON() string {
+	type logger struct {
+		MongoLogger struct {
+			Addr       string `json:"addr"`
+			DB         string `json:"db"`
+			Collection string `json:"collection"`
+		} `json:"mongoLogger"`
+		SyslogLogger struct {
+			Network string `json:"network"`
+			Addr    string `json:"addr"`
+		} `json:"syslogLogger"`
+		FileLogger struct {
+			Filename string `json:"filename"`
+		} `json:"fileLogger"`
+	}
+	loggerBytes, err := json.Marshal(logger{
+		MongoLogger:  c.MongoLogger,
+		SyslogLogger: c.SyslogLogger,
+		FileLogger:   c.FileLogger,
+	})
+	fatalIf(probe.NewError(err), "Unable to marshal logger struct into JSON.", nil)
+	return string(loggerBytes)
+}
+
 // getConfigPath get users config path
 func getConfigPath() (string, *probe.Error) {
 	if customConfigPath != "" {

server-main.go

@@ -168,8 +168,30 @@ func parsePercentToInt(s string, bitSize int) (int64, *probe.Error) {
 	}
 	return p, nil
 }
+func setLogger(conf *configV2) *probe.Error {
+	if conf.IsMongoLoggingEnabled() {
+		err := log2Mongo(conf.MongoLogger.Addr, conf.MongoLogger.DB, conf.MongoLogger.Collection)
+		if err != nil {
+			return err.Trace()
+		}
+	}
+	if conf.IsSysloggingEnabled() {
+		err := log2Syslog(conf.SyslogLogger.Network, conf.SyslogLogger.Addr)
+		if err != nil {
+			return err.Trace()
+		}
+	}
+	if conf.IsFileLoggingEnabled() {
+		err := log2File(conf.FileLogger.Filename)
+		if err != nil {
+			return err.Trace()
+		}
+	}
+	return nil
+}
 
-func getAuth() (*configV2, *probe.Error) {
+// Generates config if it doesn't exist, otherwise returns back the saved ones.
+func getConfig() (*configV2, *probe.Error) {
 	if err := createConfigPath(); err != nil {
 		return nil, err.Trace()
 	}
@@ -208,12 +230,15 @@ func (a accessKeys) JSON() string {
 	return string(b)
 }
 
-// fetchAuth first time authorization
-func fetchAuth() *probe.Error {
-	conf, err := getAuth()
+// initServer initialize server
+func initServer() *probe.Error {
+	conf, err := getConfig()
 	if err != nil {
 		return err.Trace()
 	}
+	if err := setLogger(conf); err != nil {
+		return err.Trace()
+	}
 	if conf != nil {
 		if globalJSONFlag {
 			Println(accessKeys{conf}.JSON())
@@ -257,8 +282,8 @@ func checkServerSyntax(c *cli.Context) {
 func serverMain(c *cli.Context) {
 	checkServerSyntax(c)
 
-	perr := fetchAuth()
-	fatalIf(perr.Trace(), "Failed to generate keys for minio.", nil)
+	perr := initServer()
+	fatalIf(perr.Trace(), "Failed to read config for minio.", nil)
 
 	certFile := c.GlobalString("cert")
 	keyFile := c.GlobalString("key")

typed-errors.go

@@ -18,6 +18,9 @@ package main
 
 import "errors"
 
+// errSysLogNotSupported - this message is only meaningful on windows
+var errSysLogNotSupported = errors.New("Syslog logger not supported on windows")
+
 // errInvalidArgument means that input argument is invalid.
 var errInvalidArgument = errors.New("Invalid arguments specified")