Merge pull request #1415 from SvenDowideit/log-to-dmesg

Log all `ros` logLevels to dmesg.

cmd/cloudinitexecute/authorize_ssh_keys.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 	"strings"
 
-	log "github.com/Sirupsen/logrus"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 )
 

cmd/cloudinitexecute/cloudinitexecute.go

@@ -9,10 +9,10 @@ import (
 	"path"
 	"strings"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/coreos/coreos-cloudinit/system"
 	rancherConfig "github.com/rancher/os/config"
 	"github.com/rancher/os/docker"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 	"golang.org/x/net/context"
 )
@@ -37,6 +37,7 @@ func init() {
 func Main() {
 	flags.Parse(os.Args[1:])
 
+	log.InitLogger()
 	log.Infof("Running cloud-init-execute: pre-console=%v, console=%v", preConsole, console)
 
 	cfg := rancherConfig.LoadConfig()

cmd/cloudinitsave/cloudinitsave.go

@@ -25,7 +25,6 @@ import (
 
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/coreos/coreos-cloudinit/config"
 	"github.com/coreos/coreos-cloudinit/datasource"
 	"github.com/coreos/coreos-cloudinit/datasource/configdrive"
@@ -40,6 +39,7 @@ import (
 	"github.com/rancher/os/cmd/cloudinitsave/gce"
 	"github.com/rancher/os/cmd/network"
 	rancherConfig "github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/netconf"
 	"github.com/rancher/os/util"
 )
@@ -54,6 +54,7 @@ const (
 )
 
 func Main() {
+	log.InitLogger()
 	log.Info("Running cloud-init-save")
 
 	cfg := rancherConfig.LoadConfig()

cmd/cloudinitsave/packet.go

@@ -8,9 +8,10 @@ import (
 	"path"
 	"strings"
 
+	"github.com/rancher/os/log"
+
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
 
-	"github.com/Sirupsen/logrus"
 	"github.com/packethost/packngo/metadata"
 	"github.com/rancher/os/config"
 	"github.com/rancher/os/netconf"
@@ -21,7 +22,7 @@ func enablePacketNetwork(cfg *config.RancherConfig) {
 	for _, v := range cfg.Network.Interfaces {
 		if v.Address != "" {
 			if err := netconf.ApplyNetworkConfigs(&cfg.Network); err != nil {
-				logrus.Errorf("Failed to bootstrap network: %v", err)
+				log.Errorf("Failed to bootstrap network: %v", err)
 				return
 			}
 			bootStrapped = true
@@ -36,7 +37,7 @@ func enablePacketNetwork(cfg *config.RancherConfig) {
 	c := metadata.NewClient(http.DefaultClient)
 	m, err := c.Metadata.Get()
 	if err != nil {
-		logrus.Errorf("Failed to get Packet metadata: %v", err)
+		log.Errorf("Failed to get Packet metadata: %v", err)
 		return
 	}
 
@@ -78,7 +79,7 @@ func enablePacketNetwork(cfg *config.RancherConfig) {
 
 	netCfg.Interfaces["bond0"] = bondCfg
 	b, _ := yaml.Marshal(netCfg)
-	logrus.Debugf("Generated network config: %s", string(b))
+	log.Debugf("Generated network config: %s", string(b))
 
 	cc := config.CloudConfig{
 		Rancher: config.RancherConfig{
@@ -89,15 +90,15 @@ func enablePacketNetwork(cfg *config.RancherConfig) {
 	// Post to phone home URL on first boot
 	if _, err = os.Stat(config.CloudConfigNetworkFile); err != nil {
 		if _, err = http.Post(m.PhoneHomeURL, "application/json", bytes.NewReader([]byte{})); err != nil {
-			logrus.Errorf("Failed to post to Packet phone home URL: %v", err)
+			log.Errorf("Failed to post to Packet phone home URL: %v", err)
 		}
 	}
 
 	if err := os.MkdirAll(path.Dir(config.CloudConfigNetworkFile), 0700); err != nil {
-		logrus.Errorf("Failed to create directory for file %s: %v", config.CloudConfigNetworkFile, err)
+		log.Errorf("Failed to create directory for file %s: %v", config.CloudConfigNetworkFile, err)
 	}
 
 	if err := config.WriteToFile(cc, config.CloudConfigNetworkFile); err != nil {
-		logrus.Errorf("Failed to save config file %s: %v", config.CloudConfigNetworkFile, err)
+		log.Errorf("Failed to save config file %s: %v", config.CloudConfigNetworkFile, err)
 	}
 }

cmd/control/bootstrap.go

@@ -9,8 +9,8 @@ import (
 
 	"github.com/codegangsta/cli"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 )
 

cmd/control/cli.go

@@ -3,13 +3,14 @@ package control
 import (
 	"os"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 	"github.com/rancher/os/cmd/control/service"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 )
 
 func Main() {
+	log.InitLogger()
 	app := cli.NewApp()
 
 	app.Name = os.Args[0]

cmd/control/config.go

@@ -9,8 +9,8 @@ import (
 	"strings"
 	"text/template"
 
-	log "github.com/Sirupsen/logrus"
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
+	"github.com/rancher/os/log"
 
 	"github.com/codegangsta/cli"
 	"github.com/rancher/os/config"

cmd/control/console.go

@@ -8,12 +8,12 @@ import (
 
 	"golang.org/x/net/context"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 	composeConfig "github.com/docker/libcompose/config"
 	"github.com/docker/libcompose/project/options"
 	"github.com/rancher/os/compose"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util/network"
 )
 

cmd/control/console_init.go

@@ -11,10 +11,10 @@ import (
 	"strings"
 	"syscall"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 	"github.com/rancher/os/cmd/cloudinitexecute"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 )
 

cmd/control/docker_init.go

@@ -9,9 +9,9 @@ import (
 	"syscall"
 	"time"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 )
 

cmd/control/engine.go

@@ -8,11 +8,11 @@ import (
 
 	"golang.org/x/net/context"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 	"github.com/docker/libcompose/project/options"
 	"github.com/rancher/os/compose"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util/network"
 )
 

cmd/control/entrypoint.go

@@ -5,8 +5,8 @@ import (
 	"os/exec"
 	"syscall"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
+	"github.com/rancher/os/log"
 	"golang.org/x/net/context"
 
 	"github.com/rancher/os/cmd/cloudinitexecute"

cmd/control/install.go

@@ -6,7 +6,7 @@ import (
 	"os/exec"
 	"strings"
 
-	log "github.com/Sirupsen/logrus"
+	"github.com/rancher/os/log"
 
 	"github.com/codegangsta/cli"
 	"github.com/rancher/os/cmd/power"

cmd/control/os.go

@@ -10,8 +10,8 @@ import (
 
 	"golang.org/x/net/context"
 
-	log "github.com/Sirupsen/logrus"
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
+	"github.com/rancher/os/log"
 
 	"github.com/codegangsta/cli"
 	dockerClient "github.com/docker/engine-api/client"

cmd/control/preload.go

@@ -13,9 +13,9 @@ import (
 
 	"github.com/codegangsta/cli"
 
-	log "github.com/Sirupsen/logrus"
 	dockerClient "github.com/docker/engine-api/client"
 	"github.com/rancher/os/docker"
+	"github.com/rancher/os/log"
 )
 
 const (

cmd/control/service/app/app.go

@@ -7,9 +7,9 @@ import (
 	"strings"
 	"syscall"
 
+	"github.com/rancher/os/log"
 	"golang.org/x/net/context"
 
-	"github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 	"github.com/docker/libcompose/project"
 	"github.com/docker/libcompose/project/options"
@@ -102,7 +102,7 @@ func ProjectUp(p project.APIProject, c *cli.Context) error {
 				cleanupDone <- true
 			case err := <-errChan:
 				if err != nil {
-					logrus.Fatal(err)
+					log.Fatal(err)
 				}
 				cleanupDone <- true
 			}
@@ -155,7 +155,7 @@ func ProjectDelete(p project.APIProject, c *cli.Context) error {
 			var answer string
 			_, err := fmt.Scanln(&answer)
 			if err != nil {
-				logrus.Error(err)
+				log.Error(err)
 				return false
 			}
 			if answer != "y" && answer != "Y" {

cmd/control/service/service.go

@@ -4,13 +4,13 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 	dockerApp "github.com/docker/libcompose/cli/docker/app"
 	"github.com/docker/libcompose/project"
 	"github.com/rancher/os/cmd/control/service/command"
 	"github.com/rancher/os/compose"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util/network"
 )
 
@@ -24,7 +24,7 @@ func (p *projectFactory) Create(c *cli.Context) (project.APIProject, error) {
 
 func beforeApp(c *cli.Context) error {
 	if c.GlobalBool("verbose") {
-		logrus.SetLevel(logrus.DebugLevel)
+		log.SetLevel(log.DebugLevel)
 	}
 	return nil
 }
@@ -101,7 +101,7 @@ func disable(c *cli.Context) error {
 
 	if changed {
 		if err := updateIncludedServices(cfg); err != nil {
-			logrus.Fatal(err)
+			log.Fatal(err)
 		}
 	}
 
@@ -122,7 +122,7 @@ func del(c *cli.Context) error {
 
 	if changed {
 		if err := updateIncludedServices(cfg); err != nil {
-			logrus.Fatal(err)
+			log.Fatal(err)
 		}
 	}
 
@@ -137,7 +137,7 @@ func enable(c *cli.Context) error {
 	for _, service := range c.Args() {
 		if val, ok := cfg.Rancher.ServicesInclude[service]; !ok || !val {
 			if strings.HasPrefix(service, "/") && !strings.HasPrefix(service, "/var/lib/rancher/conf") {
-				logrus.Fatalf("ERROR: Service should be in path /var/lib/rancher/conf")
+				log.Fatalf("ERROR: Service should be in path /var/lib/rancher/conf")
 			}
 
 			cfg.Rancher.ServicesInclude[service] = true
@@ -147,11 +147,11 @@ func enable(c *cli.Context) error {
 
 	if len(enabledServices) > 0 {
 		if err := compose.StageServices(cfg, enabledServices...); err != nil {
-			logrus.Fatal(err)
+			log.Fatal(err)
 		}
 
 		if err := updateIncludedServices(cfg); err != nil {
-			logrus.Fatal(err)
+			log.Fatal(err)
 		}
 	}
 
@@ -168,7 +168,7 @@ func list(c *cli.Context) error {
 
 	services, err := network.GetServices(cfg.Rancher.Repositories.ToArray())
 	if err != nil {
-		logrus.Fatalf("Failed to get services: %v", err)
+		log.Fatalf("Failed to get services: %v", err)
 	}
 
 	for _, service := range services {

cmd/control/switch_console.go

@@ -3,11 +3,11 @@ package control
 import (
 	"errors"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 	"github.com/docker/libcompose/project/options"
 	"github.com/rancher/os/compose"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"golang.org/x/net/context"
 )
 

cmd/control/tlsconf.go

@@ -5,7 +5,7 @@ import (
 	"os"
 	"path/filepath"
 
-	log "github.com/Sirupsen/logrus"
+	"github.com/rancher/os/log"
 
 	"github.com/codegangsta/cli"
 	machineUtil "github.com/docker/machine/utils"

cmd/control/udevsettle.go

@@ -4,8 +4,8 @@ import (
 	"os"
 	"os/exec"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
+	"github.com/rancher/os/log"
 )
 
 func udevSettleAction(c *cli.Context) {

cmd/control/user_docker.go

@@ -12,13 +12,13 @@ import (
 
 	"path/filepath"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 	composeClient "github.com/docker/libcompose/docker/client"
 	"github.com/docker/libcompose/project"
 	"github.com/rancher/os/compose"
 	"github.com/rancher/os/config"
 	rosDocker "github.com/rancher/os/docker"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 )
 

cmd/control/util.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"strings"
 
-	log "github.com/Sirupsen/logrus"
+	"github.com/rancher/os/log"
 )
 
 func yes(question string) bool {

cmd/network/network.go

@@ -1,7 +1,7 @@
 package network
 
 import (
-	log "github.com/Sirupsen/logrus"
+	"github.com/rancher/os/log"
 
 	"github.com/docker/libnetwork/resolvconf"
 	"github.com/rancher/os/config"
@@ -10,6 +10,7 @@ import (
 )
 
 func Main() {
+	log.InitLogger()
 	log.Infof("Running network")
 
 	cfg := config.LoadConfig()

cmd/power/power.go

@@ -10,10 +10,10 @@ import (
 
 	"golang.org/x/net/context"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/docker/engine-api/types"
 	"github.com/docker/engine-api/types/container"
 	"github.com/docker/engine-api/types/filters"
+	"github.com/rancher/os/log"
 
 	"github.com/rancher/os/docker"
 	"github.com/rancher/os/util"

cmd/power/shutdown.go

@@ -5,9 +5,11 @@ import (
 
 	"github.com/codegangsta/cli"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 )
 
 func Main() {
+	log.InitLogger()
 	app := cli.NewApp()
 
 	app.Name = os.Args[0]

cmd/respawn/respawn.go

@@ -12,8 +12,8 @@ import (
 	"syscall"
 	"time"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
+	"github.com/rancher/os/log"
 )
 
 var (
@@ -23,6 +23,7 @@ var (
 )
 
 func Main() {
+	log.InitLogger()
 	runtime.GOMAXPROCS(1)
 	runtime.LockOSThread()
 	app := cli.NewApp()

cmd/sysinit/sysinit.go

@@ -1,11 +1,12 @@
 package sysinit
 
 import (
-	log "github.com/Sirupsen/logrus"
 	initPkg "github.com/rancher/os/init"
+	"github.com/rancher/os/log"
 )
 
 func Main() {
+	log.InitLogger()
 	if err := initPkg.SysInit(); err != nil {
 		log.Fatal(err)
 	}

cmd/systemdocker/system-docker.go

@@ -1,14 +1,15 @@
 package systemdocker
 
 import (
-	"log"
 	"os"
 
 	"github.com/docker/docker/docker"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 )
 
 func Main() {
+	log.InitLogger()
 	if os.Geteuid() != 0 {
 		log.Fatalf("%s: Need to be root", os.Args[0])
 	}

cmd/wait/wait.go

@@ -3,17 +3,18 @@ package wait
 import (
 	"os"
 
-	"github.com/Sirupsen/logrus"
 	"github.com/rancher/os/config"
 	"github.com/rancher/os/docker"
+	"github.com/rancher/os/log"
 )
 
 func Main() {
+	log.InitLogger()
 	_, err := docker.NewClient(config.DockerHost)
 	if err != nil {
-		logrus.Errorf("Failed to connect to Docker")
+		log.Errorf("Failed to connect to Docker")
 		os.Exit(1)
 	}
 
-	logrus.Infof("Docker is ready")
+	log.Infof("Docker is ready")
 }

compose/project.go

@@ -5,7 +5,6 @@ import (
 
 	"golang.org/x/net/context"
 
-	log "github.com/Sirupsen/logrus"
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
 	"github.com/docker/libcompose/cli/logger"
 	composeConfig "github.com/docker/libcompose/config"
@@ -16,6 +15,7 @@ import (
 	"github.com/docker/libcompose/project/options"
 	"github.com/rancher/os/config"
 	rosDocker "github.com/rancher/os/docker"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 	"github.com/rancher/os/util/network"
 )

compose/reload.go

@@ -3,12 +3,12 @@ package compose
 import (
 	"fmt"
 
-	log "github.com/Sirupsen/logrus"
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
 	composeConfig "github.com/docker/libcompose/config"
 	"github.com/docker/libcompose/project"
 	"github.com/rancher/os/config"
 	"github.com/rancher/os/docker"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util/network"
 )
 

config/data_funcs.go

@@ -1,8 +1,8 @@
 package config
 
 import (
-	log "github.com/Sirupsen/logrus"
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
+	"github.com/rancher/os/log"
 
 	"strings"
 

config/disk.go

@@ -7,12 +7,12 @@ import (
 	"sort"
 	"strings"
 
-	log "github.com/Sirupsen/logrus"
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
 	"github.com/coreos/coreos-cloudinit/datasource"
 	"github.com/coreos/coreos-cloudinit/initialize"
 	"github.com/docker/engine-api/types"
 	composeConfig "github.com/docker/libcompose/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 )
 

dfs/scratch.go

@@ -11,9 +11,9 @@ import (
 	"strings"
 	"syscall"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/docker/libnetwork/resolvconf"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/netconf"
 	"github.com/rancher/os/selinux"
 	"github.com/rancher/os/util"
@@ -694,6 +694,7 @@ func LaunchDocker(config *Config, docker string, args ...string) (*exec.Cmd, err
 }
 
 func Main() {
+	log.InitLogger()
 	if os.Getenv("DOCKER_LAUNCH_DEBUG") == "true" {
 		log.SetLevel(log.DebugLevel)
 	}

docker/auth.go

@@ -5,11 +5,11 @@ import (
 	"fmt"
 	"strings"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/docker/docker/registry"
 	"github.com/docker/engine-api/types"
 	"github.com/docker/libcompose/docker"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 )
 
 // ConfigAuthLookup will lookup registry auth info from cloud config

docker/client_factory.go

@@ -6,11 +6,11 @@ import (
 
 	"golang.org/x/net/context"
 
-	log "github.com/Sirupsen/logrus"
 	dockerclient "github.com/docker/engine-api/client"
 	composeClient "github.com/docker/libcompose/docker/client"
 	"github.com/docker/libcompose/project"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 )
 

docker/service.go

@@ -3,7 +3,6 @@ package docker
 import (
 	"fmt"
 
-	"github.com/Sirupsen/logrus"
 	dockerclient "github.com/docker/engine-api/client"
 	"github.com/docker/engine-api/types"
 	composeConfig "github.com/docker/libcompose/config"
@@ -11,6 +10,7 @@ import (
 	"github.com/docker/libcompose/project"
 	"github.com/docker/libcompose/project/options"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"golang.org/x/net/context"
 )
 
@@ -96,7 +96,7 @@ func (s *Service) shouldRebuild(ctx context.Context) (bool, error) {
 		origRebuildLabel := containerInfo.Config.Labels[config.RebuildLabel]
 		newRebuildLabel := s.Config().Labels[config.RebuildLabel]
 		rebuildLabelChanged := newRebuildLabel != origRebuildLabel
-		logrus.WithFields(logrus.Fields{
+		log.WithFields(log.Fields{
 			"origRebuildLabel":    origRebuildLabel,
 			"newRebuildLabel":     newRebuildLabel,
 			"rebuildLabelChanged": rebuildLabelChanged,
@@ -121,7 +121,7 @@ func (s *Service) shouldRebuild(ctx context.Context) (bool, error) {
 			} else if rebuildLabelChanged || origRebuildLabel != "false" {
 				return true, nil
 			} else {
-				logrus.Warnf("%s needs rebuilding", name)
+				log.Warnf("%s needs rebuilding", name)
 			}
 		}
 	}
@@ -140,7 +140,7 @@ func (s *Service) Up(ctx context.Context, options options.Up) error {
 		return err
 	}
 	if shouldRebuild {
-		logrus.Infof("Rebuilding %s", s.Name())
+		log.Infof("Rebuilding %s", s.Name())
 		cs, err := s.Service.Containers(ctx)
 		if err != nil {
 			return err
@@ -221,7 +221,7 @@ func (s *Service) rename(ctx context.Context) error {
 	}
 
 	if len(info.Name) > 0 && info.Name[1:] != s.Name() {
-		logrus.Debugf("Renaming container %s => %s", info.Name[1:], s.Name())
+		log.Debugf("Renaming container %s => %s", info.Name[1:], s.Name())
 		return client.ContainerRename(context.Background(), info.ID, s.Name())
 	}
 	return nil

docs/os/contributing/index.md

@@ -50,11 +50,13 @@ If you're on OS X, you can run RancherOS using [_xhyve_](https://github.com/mist
 
 ### Debugging and logging.
 
-You can enable extra log information by setting them using `sudo ros config set`,
+You can enable extra log information in the console by setting them using `sudo ros config set`,
 or as kernel boot parameters.
 Enable all logging by setting `rancher.debug` true
 or you can set `rancher.docker.debug`, `racher.system_docker.debug`, `rancher.bootstrap_docker.debug`, or `rancher.log` individually.
 
+You will also be able to view the debug logging information by running `dmesg` as root.
+
 ## Repositories
 
 All of repositories are located within our main GitHub [page](https://github.com/rancher).

images/01-base/Dockerfile

@@ -35,6 +35,9 @@ COPY inputrc /etc/inputrc
 COPY growpart /usr/bin/growpart
 RUN sed -i s/"partx --update \"\$part\" \"\$dev\""/"partx --update --nr \"\$part\" \"\$dev\""/g /usr/bin/growpart && \
     sed -i -e 's/duid/clientid/g' /etc/dhcpcd.conf && \
-    sed -i 1,10d /etc/rsyslog.conf
+    sed -i 1,10d /etc/rsyslog.conf && \
+    echo "*.*                /var/log/syslog" >> /etc/rsyslog.conf
+# dump kernel log to console (but after we've finished booting)
+#    echo "kern.*                /dev/console" >> /etc/rsyslog.conf
 
 ENTRYPOINT ["/usr/bin/ros", "entrypoint"]

init/bootstrap.go

@@ -3,10 +3,10 @@ package init
 import (
 	"syscall"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/rancher/os/compose"
 	"github.com/rancher/os/config"
 	"github.com/rancher/os/dfs"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 )
 

init/init.go

@@ -11,11 +11,11 @@ import (
 	"strings"
 	"syscall"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/docker/docker/pkg/mount"
 	"github.com/rancher/os/cmd/cloudinitsave"
 	"github.com/rancher/os/config"
 	"github.com/rancher/os/dfs"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/util"
 	"github.com/rancher/os/util/network"
 )
@@ -87,6 +87,7 @@ func sysInit(c *config.CloudConfig) (*config.CloudConfig, error) {
 }
 
 func MainInit() {
+	// TODO: log.InitLogger()
 	if err := RunInit(); err != nil {
 		log.Fatal(err)
 	}

init/root.go

@@ -8,10 +8,10 @@ import (
 	"strings"
 	"syscall"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/docker/docker/pkg/archive"
 	"github.com/rancher/os/config"
 	"github.com/rancher/os/dfs"
+	"github.com/rancher/os/log"
 )
 
 func cleanupTarget(rootfs, targetUsr, usr, usrVer, tmpDir string) (bool, error) {

init/selinux.go

@@ -3,8 +3,8 @@
 package init
 
 import (
-	log "github.com/Sirupsen/logrus"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 	"github.com/rancher/os/selinux"
 	"io/ioutil"
 )

init/sysinit.go

@@ -7,12 +7,12 @@ import (
 
 	"golang.org/x/net/context"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/docker/libcompose/project/options"
 	"github.com/rancher/os/cmd/control"
 	"github.com/rancher/os/compose"
 	"github.com/rancher/os/config"
 	"github.com/rancher/os/docker"
+	"github.com/rancher/os/log"
 )
 
 const (

log/log.go

@@ -0,0 +1,143 @@
+package log
+
+import (
+	"io"
+	"os"
+
+	"github.com/Sirupsen/logrus"
+)
+
+// Default to using the logrus standard logger until log.InitLogger(logLevel) is called
+var appLog = logrus.StandardLogger()
+var userHook *ShowuserlogHook
+
+type Fields logrus.Fields
+type Level logrus.Level
+type Logger logrus.Logger
+
+const (
+	// PanicLevel level, highest level of severity. Logs and then calls panic with the
+	// message passed to Debug, Info, ...
+	PanicLevel Level = iota
+	// FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the
+	// logging level is set to Panic.
+	FatalLevel
+	// ErrorLevel level. Logs. Used for errors that should definitely be noted.
+	// Commonly used for hooks to send errors to an error tracking service.
+	ErrorLevel
+	// WarnLevel level. Non-critical entries that deserve eyes.
+	WarnLevel
+	// InfoLevel level. General operational entries about what's going on inside the
+	// application.
+	InfoLevel
+	// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
+	DebugLevel
+)
+
+func SetOutput(out io.Writer) {
+	appLog.Out = out
+}
+func SetLevel(level Level) {
+	if userHook != nil {
+		userHook.Level = logrus.Level(level)
+	} else {
+		appLog.Level = logrus.Level(level)
+		logrus.SetLevel(logrus.Level(level))
+	}
+}
+
+func Debugf(format string, args ...interface{}) {
+	appLog.Debugf(format, args...)
+}
+func Infof(format string, args ...interface{}) {
+	appLog.Infof(format, args...)
+}
+func Printf(format string, args ...interface{}) {
+	appLog.Printf(format, args...)
+}
+func Warnf(format string, args ...interface{}) {
+	appLog.Warnf(format, args...)
+}
+func Warningf(format string, args ...interface{}) {
+	appLog.Warningf(format, args...)
+}
+func Errorf(format string, args ...interface{}) {
+	appLog.Errorf(format, args...)
+}
+func Fatalf(format string, args ...interface{}) {
+	appLog.Fatalf(format, args...)
+}
+func Panicf(format string, args ...interface{}) {
+	appLog.Panicf(format, args...)
+}
+
+func Debug(args ...interface{}) {
+	appLog.Debug(args...)
+}
+func Info(args ...interface{}) {
+	appLog.Info(args...)
+}
+func Print(args ...interface{}) {
+	appLog.Print(args...)
+}
+func Warn(args ...interface{}) {
+	appLog.Warn(args...)
+}
+func Warning(args ...interface{}) {
+	appLog.Warning(args...)
+}
+func Error(args ...interface{}) {
+	appLog.Error(args...)
+}
+func Fatal(args ...interface{}) {
+	appLog.Fatal(args...)
+}
+func Panic(args ...interface{}) {
+	appLog.Panic(args...)
+}
+
+func WithField(key string, value interface{}) *logrus.Entry {
+	return appLog.WithField(key, value)
+}
+func WithFields(fields Fields) *logrus.Entry {
+	return appLog.WithFields(logrus.Fields(fields))
+}
+
+func InitLogger() {
+	if userHook != nil {
+		return // we've already initialised it
+	}
+	thisLog := logrus.New()
+
+	filename := "/dev/kmsg"
+	f, err := os.OpenFile(filename, os.O_WRONLY, 0644)
+	if err != nil {
+		logrus.Debugf("error opening /dev/kmsg %s", err)
+	}
+
+	// Filter what the user sees (info level, unless they set --debug)
+	stdLogger := logrus.StandardLogger()
+	showuserHook, err := NewShowuserlogHook(stdLogger.Level)
+	if err != nil {
+		f.Close()
+		logrus.Errorf("hook failure %s", err)
+	}
+
+	// We're all set up, now we can make it global
+	appLog = thisLog
+	userHook = showuserHook
+
+	thisLog.Hooks.Add(showuserHook)
+	logrus.StandardLogger().Hooks.Add(showuserHook)
+	thisLog.Out = f
+	logrus.SetOutput(f)
+	thisLog.Level = logrus.DebugLevel
+
+	pwd, err := os.Getwd()
+	if err != nil {
+		thisLog.Error(err)
+	}
+
+	thisLog.Debugf("START: %v in %s", os.Args, pwd)
+
+}

log/showuserlog.go

@@ -0,0 +1,40 @@
+package log
+
+import (
+	"fmt"
+	"github.com/Sirupsen/logrus"
+	"os"
+)
+
+// ShowuserlogHook writes all levels of logrus entries to a file for later analysis
+type ShowuserlogHook struct {
+	Level logrus.Level
+}
+
+func NewShowuserlogHook(l logrus.Level) (*ShowuserlogHook, error) {
+	return &ShowuserlogHook{l}, nil
+}
+
+func (hook *ShowuserlogHook) Fire(entry *logrus.Entry) error {
+	line, err := entry.String()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
+		return err
+	}
+
+	if entry.Level <= hook.Level {
+		fmt.Printf("> %s", line)
+	}
+	return nil
+}
+
+func (hook *ShowuserlogHook) Levels() []logrus.Level {
+	return []logrus.Level{
+		logrus.DebugLevel,
+		logrus.InfoLevel,
+		logrus.WarnLevel,
+		logrus.ErrorLevel,
+		logrus.FatalLevel,
+		logrus.PanicLevel,
+	}
+}

netconf/bonding.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/rancher/os/log"
 	"github.com/vishvananda/netlink"
 )
 
@@ -23,7 +23,7 @@ type Bonding struct {
 func (b *Bonding) init() error {
 	_, err := os.Stat(bondingMasters)
 	if os.IsNotExist(err) {
-		logrus.Info("Loading bonding kernel module")
+		log.Info("Loading bonding kernel module")
 		cmd := exec.Command("modprobe", "bonding")
 		cmd.Stderr = os.Stderr
 		cmd.Stdout = os.Stdin
@@ -89,7 +89,7 @@ func (b *Bonding) RemoveSlave(slave string) error {
 	}
 
 	p := base + b.name + "/bonding/slaves"
-	logrus.Infof("Removing slave %s from master %s", slave, b.name)
+	log.Infof("Removing slave %s from master %s", slave, b.name)
 	return ioutil.WriteFile(p, []byte("-"+slave), 0644)
 }
 
@@ -101,7 +101,7 @@ func (b *Bonding) AddSlave(slave string) error {
 	}
 
 	p := base + b.name + "/bonding/slaves"
-	logrus.Infof("Adding slave %s to master %s", slave, b.name)
+	log.Infof("Adding slave %s to master %s", slave, b.name)
 	return ioutil.WriteFile(p, []byte("+"+slave), 0644)
 }
 
@@ -117,11 +117,11 @@ func (b *Bonding) Opt(key, value string) error {
 
 	p := base + b.name + "/bonding/" + key
 	if err := ioutil.WriteFile(p, []byte(value), 0644); err != nil {
-		logrus.Errorf("Failed to set %s=%s on %s: %v", key, value, b.name, err)
+		log.Errorf("Failed to set %s=%s on %s: %v", key, value, b.name, err)
 		return err
 	}
 
-	logrus.Infof("Set %s=%s on %s", key, value, b.name)
+	log.Infof("Set %s=%s on %s", key, value, b.name)
 
 	return nil
 }
@@ -138,6 +138,6 @@ func Bond(name string) (*Bonding, error) {
 		return b, nil
 	}
 
-	logrus.Infof("Creating bond %s", name)
+	log.Infof("Creating bond %s", name)
 	return b, ioutil.WriteFile(bondingMasters, []byte("+"+name), 0644)
 }

netconf/ipv4ll_linux.go

@@ -6,7 +6,7 @@ import (
 	"math/rand"
 	"net"
 
-	log "github.com/Sirupsen/logrus"
+	"github.com/rancher/os/log"
 
 	"github.com/j-keck/arping"
 	"github.com/vishvananda/netlink"

netconf/netconf_linux.go

@@ -10,8 +10,8 @@ import (
 	"sync"
 	"syscall"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/flynn/go-shlex"
+	"github.com/rancher/os/log"
 
 	"github.com/rancher/os/config"
 	"github.com/ryanuber/go-glob"

trash.conf

@@ -1,6 +1,6 @@
 github.com/Microsoft/go-winio v0.1.0
 github.com/RackSec/srslog 259aed10dfa74ea2961eddd1d9847619f6e98837
-github.com/Sirupsen/logrus v0.9.0
+github.com/Sirupsen/logrus v0.11.0
 github.com/boltdb/bolt v1.2.0
 github.com/cloudfoundry-incubator/candiedyaml 01cbc92901719f599b11f3a7e3b1768d7002b0bb https://github.com/rancher/candiedyaml
 github.com/cloudfoundry/gosigar 3ed7c74352dae6dc00bdc8c74045375352e3ec05

util/network/cache.go

@@ -6,7 +6,7 @@ import (
 	"io/ioutil"
 	"os"
 
-	log "github.com/Sirupsen/logrus"
+	"github.com/rancher/os/log"
 )
 
 const (

util/network/network.go

@@ -11,8 +11,8 @@ import (
 
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
 
-	log "github.com/Sirupsen/logrus"
 	"github.com/rancher/os/config"
+	"github.com/rancher/os/log"
 )
 
 var (

util/util.go

@@ -11,10 +11,10 @@ import (
 	"path"
 	"strings"
 
+	"github.com/rancher/os/log"
+
 	yaml "github.com/cloudfoundry-incubator/candiedyaml"
 	osYaml "github.com/rancher/os/config/yaml"
-
-	log "github.com/Sirupsen/logrus"
 )
 
 const (

vendor/github.com/Sirupsen/logrus/.travis.yml

@@ -3,6 +3,7 @@ go:
   - 1.3
   - 1.4
   - 1.5
+  - 1.6
   - tip
 install:
   - go get -t ./...

vendor/github.com/Sirupsen/logrus/CHANGELOG.md

@@ -1,3 +1,10 @@
+# 0.10.0
+
+* feature: Add a test hook (#180)
+* feature: `ParseLevel` is now case-insensitive (#326)
+* feature: `FieldLogger` interface that generalizes `Logger` and `Entry` (#308)
+* performance: avoid re-allocations on `WithFields` (#335)
+
 # 0.9.0
 
 * logrus/text_formatter: don't emit empty msg

vendor/github.com/Sirupsen/logrus/README.md

@@ -1,4 +1,4 @@
-# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus)&nbsp;[![godoc reference](https://godoc.org/github.com/Sirupsen/logrus?status.png)][godoc]
+# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus)&nbsp;[![GoDoc](https://godoc.org/github.com/Sirupsen/logrus?status.svg)](https://godoc.org/github.com/Sirupsen/logrus)
 
 Logrus is a structured logger for Go (golang), completely API compatible with
 the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not
@@ -12,7 +12,7 @@ plain text):
 
 ![Colored](http://i.imgur.com/PY7qMwd.png)
 
-With `log.Formatter = new(logrus.JSONFormatter)`, for easy parsing by logstash
+With `log.SetFormatter(&log.JSONFormatter{})`, for easy parsing by logstash
 or Splunk:
 
 ```json
@@ -32,7 +32,7 @@ ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
 "time":"2014-03-10 19:57:38.562543128 -0400 EDT"}
 ```
 
-With the default `log.Formatter = new(&log.TextFormatter{})` when a TTY is not
+With the default `log.SetFormatter(&log.TextFormatter{})` when a TTY is not
 attached, the output is compatible with the
 [logfmt](http://godoc.org/github.com/kr/logfmt) format:
 
@@ -218,10 +218,22 @@ Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/v
 | [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar |
 | [Fluentd](https://github.com/evalphobia/logrus_fluent) | Hook for logging to fluentd |
 | [Mongodb](https://github.com/weekface/mgorus) | Hook for logging to mongodb |
+| [Influxus] (http://github.com/vlad-doru/influxus) | Hook for concurrently logging to [InfluxDB] (http://influxdata.com/) |
 | [InfluxDB](https://github.com/Abramovic/logrus_influxdb) | Hook for logging to influxdb |
 | [Octokit](https://github.com/dorajistyle/logrus-octokit-hook) | Hook for logging to github via octokit |
 | [DeferPanic](https://github.com/deferpanic/dp-logrus) | Hook for logging to DeferPanic |
 | [Redis-Hook](https://github.com/rogierlommers/logrus-redis-hook) | Hook for logging to a ELK stack (through Redis) |
+| [Amqp-Hook](https://github.com/vladoatanasov/logrus_amqp) | Hook for logging to Amqp broker (Like RabbitMQ) |
+| [KafkaLogrus](https://github.com/goibibo/KafkaLogrus) | Hook for logging to kafka |
+| [Typetalk](https://github.com/dragon3/logrus-typetalk-hook) | Hook for logging to [Typetalk](https://www.typetalk.in/) |
+| [ElasticSearch](https://github.com/sohlich/elogrus) | Hook for logging to ElasticSearch|
+| [Sumorus](https://github.com/doublefree/sumorus) | Hook for logging to [SumoLogic](https://www.sumologic.com/)|
+| [Scribe](https://github.com/sagar8192/logrus-scribe-hook) | Hook for logging to [Scribe](https://github.com/facebookarchive/scribe)|
+| [Logstash](https://github.com/bshuster-repo/logrus-logstash-hook) | Hook for logging to [Logstash](https://www.elastic.co/products/logstash) |
+| [logz.io](https://github.com/ripcurld00d/logrus-logzio-hook) | Hook for logging to [logz.io](https://logz.io), a Log as a Service using Logstash |
+| [Logmatic.io](https://github.com/logmatic/logmatic-go) | Hook for logging to [Logmatic.io](http://logmatic.io/) |
+| [Pushover](https://github.com/toorop/logrus_pushover) | Send error via [Pushover](https://pushover.net) |
+
 
 #### Level logging
 
@@ -299,14 +311,10 @@ The built-in logging formatters are:
     field to `true`.  To force no colored output even if there is a TTY  set the
     `DisableColors` field to `true`
 * `logrus.JSONFormatter`. Logs fields as JSON.
-* `logrus/formatters/logstash.LogstashFormatter`. Logs fields as [Logstash](http://logstash.net) Events.
-
-    ```go
-      logrus.SetFormatter(&logstash.LogstashFormatter{Type: "application_name"})
-    ```
 
 Third party logging formatters:
 
+* [`logstash`](https://github.com/bshuster-repo/logrus-logstash-hook). Logs fields as [Logstash](http://logstash.net) Events.
 * [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout.
 * [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
 
@@ -362,5 +370,56 @@ entries. It should not be a feature of the application-level logger.
 | Tool | Description |
 | ---- | ----------- |
 |[Logrus Mate](https://github.com/gogap/logrus_mate)|Logrus mate is a tool for Logrus to manage loggers, you can initial logger's level, hook and formatter by config file, the logger will generated with different config at different environment.|
+|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper arround Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
 
-[godoc]: https://godoc.org/github.com/Sirupsen/logrus
+#### Testing
+
+Logrus has a built in facility for asserting the presence of log messages. This is implemented through the `test` hook and provides:
+
+* decorators for existing logger (`test.NewLocal` and `test.NewGlobal`) which basically just add the `test` hook
+* a test logger (`test.NewNullLogger`) that just records log messages (and does not output any):
+
+```go
+logger, hook := NewNullLogger()
+logger.Error("Hello error")
+
+assert.Equal(1, len(hook.Entries))
+assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
+assert.Equal("Hello error", hook.LastEntry().Message)
+
+hook.Reset()
+assert.Nil(hook.LastEntry())
+```
+
+#### Fatal handlers
+
+Logrus can register one or more functions that will be called when any `fatal`
+level message is logged. The registered handlers will be executed before
+logrus performs a `os.Exit(1)`. This behavior may be helpful if callers need
+to gracefully shutdown. Unlike a `panic("Something went wrong...")` call which can be intercepted with a deferred `recover` a call to `os.Exit(1)` can not be intercepted.
+
+```
+...
+handler := func() {
+  // gracefully shutdown something...
+}
+logrus.RegisterExitHandler(handler)
+...
+```
+
+#### Thread safty
+
+By default Logger is protected by mutex for concurrent writes, this mutex is invoked when calling hooks and writing logs.
+If you are sure such locking is not needed, you can call logger.SetNoLock() to disable the locking.
+
+Situation when locking is not needed includes:
+
+* You have no hooks registered, or hooks calling is already thread-safe.
+
+* Writing to logger.Out is already thread-safe, for example:
+
+  1) logger.Out is protected by locks.
+
+  2) logger.Out is a os.File handler opened with `O_APPEND` flag, and every write is smaller than 4k. (This allow multi-thread/multi-process writing)
+
+     (Refer to http://www.notthewizard.com/2014/06/17/are-files-appends-really-atomic/)

vendor/github.com/Sirupsen/logrus/alt_exit.go

@@ -0,0 +1,64 @@
+package logrus
+
+// The following code was sourced and modified from the
+// https://bitbucket.org/tebeka/atexit package governed by the following license:
+//
+// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import (
+	"fmt"
+	"os"
+)
+
+var handlers = []func(){}
+
+func runHandler(handler func()) {
+	defer func() {
+		if err := recover(); err != nil {
+			fmt.Fprintln(os.Stderr, "Error: Logrus exit handler error:", err)
+		}
+	}()
+
+	handler()
+}
+
+func runHandlers() {
+	for _, handler := range handlers {
+		runHandler(handler)
+	}
+}
+
+// Exit runs all the Logrus atexit handlers and then terminates the program using os.Exit(code)
+func Exit(code int) {
+	runHandlers()
+	os.Exit(code)
+}
+
+// RegisterExitHandler adds a Logrus Exit handler, call logrus.Exit to invoke
+// all handlers. The handlers will also be invoked when any Fatal log entry is
+// made.
+//
+// This method is useful when a caller wishes to use logrus to log a fatal
+// message but also needs to gracefully shutdown. An example usecase could be
+// closing database connections, or sending a alert that the application is
+// closing.
+func RegisterExitHandler(handler func()) {
+	handlers = append(handlers, handler)
+}

vendor/github.com/Sirupsen/logrus/entry.go

@@ -3,11 +3,21 @@ package logrus
 import (
 	"bytes"
 	"fmt"
-	"io"
 	"os"
+	"sync"
 	"time"
 )
 
+var bufferPool *sync.Pool
+
+func init() {
+	bufferPool = &sync.Pool{
+		New: func() interface{} {
+			return new(bytes.Buffer)
+		},
+	}
+}
+
 // Defines the key when adding errors using WithError.
 var ErrorKey = "error"
 
@@ -29,6 +39,9 @@ type Entry struct {
 
 	// Message passed to Debug, Info, Warn, Error, Fatal or Panic
 	Message string
+
+	// When formatter is called in entry.log(), an Buffer may be set to entry
+	Buffer *bytes.Buffer
 }
 
 func NewEntry(logger *Logger) *Entry {
@@ -39,21 +52,15 @@ func NewEntry(logger *Logger) *Entry {
 	}
 }
 
-// Returns a reader for the entry, which is a proxy to the formatter.
-func (entry *Entry) Reader() (*bytes.Buffer, error) {
-	serialized, err := entry.Logger.Formatter.Format(entry)
-	return bytes.NewBuffer(serialized), err
-}
-
 // Returns the string representation from the reader and ultimately the
 // formatter.
 func (entry *Entry) String() (string, error) {
-	reader, err := entry.Reader()
+	serialized, err := entry.Logger.Formatter.Format(entry)
 	if err != nil {
 		return "", err
 	}
-
-	return reader.String(), err
+	str := string(serialized)
+	return str, nil
 }
 
 // Add an error as single field (using the key defined in ErrorKey) to the Entry.
@@ -68,7 +75,7 @@ func (entry *Entry) WithField(key string, value interface{}) *Entry {
 
 // Add a map of fields to the Entry.
 func (entry *Entry) WithFields(fields Fields) *Entry {
-	data := Fields{}
+	data := make(Fields, len(entry.Data)+len(fields))
 	for k, v := range entry.Data {
 		data[k] = v
 	}
@@ -81,6 +88,7 @@ func (entry *Entry) WithFields(fields Fields) *Entry {
 // This function is not declared with a pointer value because otherwise
 // race conditions will occur when using multiple goroutines
 func (entry Entry) log(level Level, msg string) {
+	var buffer *bytes.Buffer
 	entry.Time = time.Now()
 	entry.Level = level
 	entry.Message = msg
@@ -90,20 +98,23 @@ func (entry Entry) log(level Level, msg string) {
 		fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
 		entry.Logger.mu.Unlock()
 	}
-
-	reader, err := entry.Reader()
+	buffer = bufferPool.Get().(*bytes.Buffer)
+	buffer.Reset()
+	defer bufferPool.Put(buffer)
+	entry.Buffer = buffer
+	serialized, err := entry.Logger.Formatter.Format(&entry)
+	entry.Buffer = nil
 	if err != nil {
 		entry.Logger.mu.Lock()
 		fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
 		entry.Logger.mu.Unlock()
-	}
-
-	entry.Logger.mu.Lock()
-	defer entry.Logger.mu.Unlock()
-
-	_, err = io.Copy(entry.Logger.Out, reader)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
+	} else {
+		entry.Logger.mu.Lock()
+		_, err = entry.Logger.Out.Write(serialized)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
+		}
+		entry.Logger.mu.Unlock()
 	}
 
 	// To avoid Entry#log() returning a value that only would make sense for
@@ -150,7 +161,7 @@ func (entry *Entry) Fatal(args ...interface{}) {
 	if entry.Logger.Level >= FatalLevel {
 		entry.log(FatalLevel, fmt.Sprint(args...))
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (entry *Entry) Panic(args ...interface{}) {
@@ -198,7 +209,7 @@ func (entry *Entry) Fatalf(format string, args ...interface{}) {
 	if entry.Logger.Level >= FatalLevel {
 		entry.Fatal(fmt.Sprintf(format, args...))
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (entry *Entry) Panicf(format string, args ...interface{}) {
@@ -245,7 +256,7 @@ func (entry *Entry) Fatalln(args ...interface{}) {
 	if entry.Logger.Level >= FatalLevel {
 		entry.Fatal(entry.sprintlnn(args...))
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (entry *Entry) Panicln(args ...interface{}) {

vendor/github.com/Sirupsen/logrus/formatter.go

@@ -31,18 +31,15 @@ type Formatter interface {
 // It's not exported because it's still using Data in an opinionated way. It's to
 // avoid code duplication between the two default formatters.
 func prefixFieldClashes(data Fields) {
-	_, ok := data["time"]
-	if ok {
-		data["fields.time"] = data["time"]
+	if t, ok := data["time"]; ok {
+		data["fields.time"] = t
 	}
 
-	_, ok = data["msg"]
-	if ok {
-		data["fields.msg"] = data["msg"]
+	if m, ok := data["msg"]; ok {
+		data["fields.msg"] = m
 	}
 
-	_, ok = data["level"]
-	if ok {
-		data["fields.level"] = data["level"]
+	if l, ok := data["level"]; ok {
+		data["fields.level"] = l
 	}
 }

vendor/github.com/Sirupsen/logrus/logger.go

@@ -26,8 +26,31 @@ type Logger struct {
 	// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
 	// logged. `logrus.Debug` is useful in
 	Level Level
-	// Used to sync writing to the log.
-	mu sync.Mutex
+	// Used to sync writing to the log. Locking is enabled by Default
+	mu MutexWrap
+	// Reusable empty entry
+	entryPool sync.Pool
+}
+
+type MutexWrap struct {
+	lock     sync.Mutex
+	disabled bool
+}
+
+func (mw *MutexWrap) Lock() {
+	if !mw.disabled {
+		mw.lock.Lock()
+	}
+}
+
+func (mw *MutexWrap) Unlock() {
+	if !mw.disabled {
+		mw.lock.Unlock()
+	}
+}
+
+func (mw *MutexWrap) Disable() {
+	mw.disabled = true
 }
 
 // Creates a new logger. Configuration should be set by changing `Formatter`,
@@ -51,162 +74,235 @@ func New() *Logger {
 	}
 }
 
-// Adds a field to the log entry, note that you it doesn't log until you call
+func (logger *Logger) newEntry() *Entry {
+	entry, ok := logger.entryPool.Get().(*Entry)
+	if ok {
+		return entry
+	}
+	return NewEntry(logger)
+}
+
+func (logger *Logger) releaseEntry(entry *Entry) {
+	logger.entryPool.Put(entry)
+}
+
+// Adds a field to the log entry, note that it doesn't log until you call
 // Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
 // If you want multiple fields, use `WithFields`.
 func (logger *Logger) WithField(key string, value interface{}) *Entry {
-	return NewEntry(logger).WithField(key, value)
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithField(key, value)
 }
 
 // Adds a struct of fields to the log entry. All it does is call `WithField` for
 // each `Field`.
 func (logger *Logger) WithFields(fields Fields) *Entry {
-	return NewEntry(logger).WithFields(fields)
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithFields(fields)
 }
 
 // Add an error as single field to the log entry.  All it does is call
 // `WithError` for the given `error`.
 func (logger *Logger) WithError(err error) *Entry {
-	return NewEntry(logger).WithError(err)
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithError(err)
 }
 
 func (logger *Logger) Debugf(format string, args ...interface{}) {
 	if logger.Level >= DebugLevel {
-		NewEntry(logger).Debugf(format, args...)
+		entry := logger.newEntry()
+		entry.Debugf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Infof(format string, args ...interface{}) {
 	if logger.Level >= InfoLevel {
-		NewEntry(logger).Infof(format, args...)
+		entry := logger.newEntry()
+		entry.Infof(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Printf(format string, args ...interface{}) {
-	NewEntry(logger).Printf(format, args...)
+	entry := logger.newEntry()
+	entry.Printf(format, args...)
+	logger.releaseEntry(entry)
 }
 
 func (logger *Logger) Warnf(format string, args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnf(format, args...)
+		entry := logger.newEntry()
+		entry.Warnf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Warningf(format string, args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnf(format, args...)
+		entry := logger.newEntry()
+		entry.Warnf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Errorf(format string, args ...interface{}) {
 	if logger.Level >= ErrorLevel {
-		NewEntry(logger).Errorf(format, args...)
+		entry := logger.newEntry()
+		entry.Errorf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Fatalf(format string, args ...interface{}) {
 	if logger.Level >= FatalLevel {
-		NewEntry(logger).Fatalf(format, args...)
+		entry := logger.newEntry()
+		entry.Fatalf(format, args...)
+		logger.releaseEntry(entry)
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (logger *Logger) Panicf(format string, args ...interface{}) {
 	if logger.Level >= PanicLevel {
-		NewEntry(logger).Panicf(format, args...)
+		entry := logger.newEntry()
+		entry.Panicf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Debug(args ...interface{}) {
 	if logger.Level >= DebugLevel {
-		NewEntry(logger).Debug(args...)
+		entry := logger.newEntry()
+		entry.Debug(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Info(args ...interface{}) {
 	if logger.Level >= InfoLevel {
-		NewEntry(logger).Info(args...)
+		entry := logger.newEntry()
+		entry.Info(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Print(args ...interface{}) {
-	NewEntry(logger).Info(args...)
+	entry := logger.newEntry()
+	entry.Info(args...)
+	logger.releaseEntry(entry)
 }
 
 func (logger *Logger) Warn(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warn(args...)
+		entry := logger.newEntry()
+		entry.Warn(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Warning(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warn(args...)
+		entry := logger.newEntry()
+		entry.Warn(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Error(args ...interface{}) {
 	if logger.Level >= ErrorLevel {
-		NewEntry(logger).Error(args...)
+		entry := logger.newEntry()
+		entry.Error(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Fatal(args ...interface{}) {
 	if logger.Level >= FatalLevel {
-		NewEntry(logger).Fatal(args...)
+		entry := logger.newEntry()
+		entry.Fatal(args...)
+		logger.releaseEntry(entry)
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (logger *Logger) Panic(args ...interface{}) {
 	if logger.Level >= PanicLevel {
-		NewEntry(logger).Panic(args...)
+		entry := logger.newEntry()
+		entry.Panic(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Debugln(args ...interface{}) {
 	if logger.Level >= DebugLevel {
-		NewEntry(logger).Debugln(args...)
+		entry := logger.newEntry()
+		entry.Debugln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Infoln(args ...interface{}) {
 	if logger.Level >= InfoLevel {
-		NewEntry(logger).Infoln(args...)
+		entry := logger.newEntry()
+		entry.Infoln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Println(args ...interface{}) {
-	NewEntry(logger).Println(args...)
+	entry := logger.newEntry()
+	entry.Println(args...)
+	logger.releaseEntry(entry)
 }
 
 func (logger *Logger) Warnln(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnln(args...)
+		entry := logger.newEntry()
+		entry.Warnln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Warningln(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnln(args...)
+		entry := logger.newEntry()
+		entry.Warnln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Errorln(args ...interface{}) {
 	if logger.Level >= ErrorLevel {
-		NewEntry(logger).Errorln(args...)
+		entry := logger.newEntry()
+		entry.Errorln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Fatalln(args ...interface{}) {
 	if logger.Level >= FatalLevel {
-		NewEntry(logger).Fatalln(args...)
+		entry := logger.newEntry()
+		entry.Fatalln(args...)
+		logger.releaseEntry(entry)
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (logger *Logger) Panicln(args ...interface{}) {
 	if logger.Level >= PanicLevel {
-		NewEntry(logger).Panicln(args...)
+		entry := logger.newEntry()
+		entry.Panicln(args...)
+		logger.releaseEntry(entry)
 	}
 }
+
+//When file is opened with appending mode, it's safe to
+//write concurrently to a file (within 4k message on Linux).
+//In these cases user can choose to disable the lock.
+func (logger *Logger) SetNoLock() {
+	logger.mu.Disable()
+}

vendor/github.com/Sirupsen/logrus/logrus.go

@@ -3,6 +3,7 @@ package logrus
 import (
 	"fmt"
 	"log"
+	"strings"
 )
 
 // Fields type, used to pass to `WithFields`.
@@ -33,7 +34,7 @@ func (level Level) String() string {
 
 // ParseLevel takes a string level and returns the Logrus log level constant.
 func ParseLevel(lvl string) (Level, error) {
-	switch lvl {
+	switch strings.ToLower(lvl) {
 	case "panic":
 		return PanicLevel, nil
 	case "fatal":
@@ -52,6 +53,16 @@ func ParseLevel(lvl string) (Level, error) {
 	return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
 }
 
+// A constant exposing all logging levels
+var AllLevels = []Level{
+	PanicLevel,
+	FatalLevel,
+	ErrorLevel,
+	WarnLevel,
+	InfoLevel,
+	DebugLevel,
+}
+
 // These are the different logging levels. You can set the logging level to log
 // on your instance of logger, obtained with `logrus.New()`.
 const (
@@ -96,3 +107,37 @@ type StdLogger interface {
 	Panicf(string, ...interface{})
 	Panicln(...interface{})
 }
+
+// The FieldLogger interface generalizes the Entry and Logger types
+type FieldLogger interface {
+	WithField(key string, value interface{}) *Entry
+	WithFields(fields Fields) *Entry
+	WithError(err error) *Entry
+
+	Debugf(format string, args ...interface{})
+	Infof(format string, args ...interface{})
+	Printf(format string, args ...interface{})
+	Warnf(format string, args ...interface{})
+	Warningf(format string, args ...interface{})
+	Errorf(format string, args ...interface{})
+	Fatalf(format string, args ...interface{})
+	Panicf(format string, args ...interface{})
+
+	Debug(args ...interface{})
+	Info(args ...interface{})
+	Print(args ...interface{})
+	Warn(args ...interface{})
+	Warning(args ...interface{})
+	Error(args ...interface{})
+	Fatal(args ...interface{})
+	Panic(args ...interface{})
+
+	Debugln(args ...interface{})
+	Infoln(args ...interface{})
+	Println(args ...interface{})
+	Warnln(args ...interface{})
+	Warningln(args ...interface{})
+	Errorln(args ...interface{})
+	Fatalln(args ...interface{})
+	Panicln(args ...interface{})
+}

vendor/github.com/Sirupsen/logrus/terminal_appengine.go

@@ -0,0 +1,8 @@
+// +build appengine
+
+package logrus
+
+// IsTerminal returns true if stderr's file descriptor is a terminal.
+func IsTerminal() bool {
+	return true
+}

vendor/github.com/Sirupsen/logrus/terminal_bsd.go

@@ -1,4 +1,5 @@
 // +build darwin freebsd openbsd netbsd dragonfly
+// +build !appengine
 
 package logrus
 

vendor/github.com/Sirupsen/logrus/terminal_linux.go

@@ -3,6 +3,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build !appengine
+
 package logrus
 
 import "syscall"

vendor/github.com/Sirupsen/logrus/terminal_notwindows.go

@@ -4,6 +4,7 @@
 // license that can be found in the LICENSE file.
 
 // +build linux darwin freebsd openbsd netbsd dragonfly
+// +build !appengine
 
 package logrus
 

vendor/github.com/Sirupsen/logrus/terminal_solaris.go

@@ -1,4 +1,4 @@
-// +build solaris
+// +build solaris,!appengine
 
 package logrus
 

vendor/github.com/Sirupsen/logrus/terminal_windows.go

@@ -3,7 +3,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build windows
+// +build windows,!appengine
 
 package logrus
 

vendor/github.com/Sirupsen/logrus/text_formatter.go

@@ -57,6 +57,7 @@ type TextFormatter struct {
 }
 
 func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
+	var b *bytes.Buffer
 	var keys []string = make([]string, 0, len(entry.Data))
 	for k := range entry.Data {
 		keys = append(keys, k)
@@ -65,8 +66,11 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
 	if !f.DisableSorting {
 		sort.Strings(keys)
 	}
-
-	b := &bytes.Buffer{}
+	if entry.Buffer != nil {
+		b = entry.Buffer
+	} else {
+		b = &bytes.Buffer{}
+	}
 
 	prefixFieldClashes(entry.Data)
 
@@ -118,7 +122,8 @@ func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []strin
 	}
 	for _, k := range keys {
 		v := entry.Data[k]
-		fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%+v", levelColor, k, v)
+		fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k)
+		f.appendValue(b, v)
 	}
 }
 
@@ -128,34 +133,36 @@ func needsQuoting(text string) bool {
 			(ch >= 'A' && ch <= 'Z') ||
 			(ch >= '0' && ch <= '9') ||
 			ch == '-' || ch == '.') {
-			return false
+			return true
 		}
 	}
-	return true
+	return false
 }
 
 func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
 
 	b.WriteString(key)
 	b.WriteByte('=')
+	f.appendValue(b, value)
+	b.WriteByte(' ')
+}
 
+func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
 	switch value := value.(type) {
 	case string:
-		if needsQuoting(value) {
+		if !needsQuoting(value) {
 			b.WriteString(value)
 		} else {
 			fmt.Fprintf(b, "%q", value)
 		}
 	case error:
 		errmsg := value.Error()
-		if needsQuoting(errmsg) {
+		if !needsQuoting(errmsg) {
 			b.WriteString(errmsg)
 		} else {
-			fmt.Fprintf(b, "%q", value)
+			fmt.Fprintf(b, "%q", errmsg)
 		}
 	default:
 		fmt.Fprint(b, value)
 	}
-
-	b.WriteByte(' ')
 }

vendor/github.com/Sirupsen/logrus/writer.go

@@ -7,18 +7,40 @@ import (
 )
 
 func (logger *Logger) Writer() *io.PipeWriter {
+	return logger.WriterLevel(InfoLevel)
+}
+
+func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
 	reader, writer := io.Pipe()
 
-	go logger.writerScanner(reader)
+	var printFunc func(args ...interface{})
+	switch level {
+	case DebugLevel:
+		printFunc = logger.Debug
+	case InfoLevel:
+		printFunc = logger.Info
+	case WarnLevel:
+		printFunc = logger.Warn
+	case ErrorLevel:
+		printFunc = logger.Error
+	case FatalLevel:
+		printFunc = logger.Fatal
+	case PanicLevel:
+		printFunc = logger.Panic
+	default:
+		printFunc = logger.Print
+	}
+
+	go logger.writerScanner(reader, printFunc)
 	runtime.SetFinalizer(writer, writerFinalizer)
 
 	return writer
 }
 
-func (logger *Logger) writerScanner(reader *io.PipeReader) {
+func (logger *Logger) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
 	scanner := bufio.NewScanner(reader)
 	for scanner.Scan() {
-		logger.Print(scanner.Text())
+		printFunc(scanner.Text())
 	}
 	if err := scanner.Err(); err != nil {
 		logger.Errorf("Error while reading from Writer: %s", err)