implemented glog wrapper for use in delegated commands

Signed-off-by: Steve Kuznetsov <[email protected]>

pkg/cmd/server/admin/create_keypair.go

@@ -13,7 +13,6 @@ import (
 	"os"
 	"path/filepath"
 
-	"github.com/golang/glog"
 	"github.com/spf13/cobra"
 
 	kcmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
@@ -86,15 +85,15 @@ func (o CreateKeyPairOptions) Validate(args []string) error {
 }
 
 func (o CreateKeyPairOptions) CreateKeyPair() error {
-	glog.V(4).Infof("Creating a key pair with: %#v", o)
+	fmt.Fprintf(o.Output, "Creating a key pair with: %#v", o)
 
 	if !o.Overwrite {
 		if _, err := os.Stat(o.PrivateKeyFile); err == nil {
-			glog.V(3).Infof("Keeping existing private key file %s\n", o.PrivateKeyFile)
+			fmt.Fprintf(o.Output, "Keeping existing private key file %s\n", o.PrivateKeyFile)
 			return nil
 		}
 		if _, err := os.Stat(o.PublicKeyFile); err == nil {
-			glog.V(3).Infof("Keeping existing public key file %s\n", o.PublicKeyFile)
+			fmt.Fprintf(o.Output, "Keeping existing public key file %s\n", o.PublicKeyFile)
 			return nil
 		}
 	}

pkg/cmd/server/start/start_allinone.go

@@ -34,6 +34,7 @@ type AllInOneOptions struct {
 	NodeConfigFile     string
 	PrintIP            bool
 	ServiceNetworkCIDR string
+	Output             io.Writer
 }
 
 const allInOneLong = `
@@ -59,7 +60,13 @@ You may also pass --kubeconfig=<path> to connect to an external Kubernetes clust
 
 // NewCommandStartAllInOne provides a CLI handler for 'start' command
 func NewCommandStartAllInOne(basename string, out io.Writer) (*cobra.Command, *AllInOneOptions) {
-	options := &AllInOneOptions{MasterOptions: &MasterOptions{Output: out}}
+	options := &AllInOneOptions{
+		Output: out,
+		MasterOptions: &MasterOptions{
+			// delegated commands should use glog instead of writing to the output stream
+			Output: cmdutil.NewGLogWriterV(3),
+		},
+	}
 	options.MasterOptions.DefaultsFromName(basename)
 
 	cmds := &cobra.Command{
@@ -227,7 +234,7 @@ func (o AllInOneOptions) StartAllInOne() error {
 		if err != nil {
 			return err
 		}
-		fmt.Fprintf(o.MasterOptions.Output, "%s\n", host)
+		fmt.Fprintf(o.Output, "%s\n", host)
 		return nil
 	}
 	masterOptions := *o.MasterOptions

pkg/cmd/server/start/start_master.go

@@ -318,7 +318,7 @@ func (o MasterOptions) CreateCerts() error {
 		APIServerCAFiles:   o.MasterArgs.APIServerCAFiles,
 		CABundleFile:       admin.DefaultCABundleFile(o.MasterArgs.ConfigDir.Value()),
 		PublicAPIServerURL: publicMasterAddr.String(),
-		Output:             o.Output,
+		Output:             cmdutil.NewGLogWriterV(3),
 	}
 	if err := mintAllCertsOptions.Validate(nil); err != nil {
 		return err

pkg/cmd/util/log.go

@@ -1,6 +1,10 @@
 package util
 
-import "github.com/golang/glog"
+import (
+	"io"
+
+	"github.com/golang/glog"
+)
 
 // GetLogLevel returns the current glog log level
 func GetLogLevel() (level int) {
@@ -11,3 +15,23 @@ func GetLogLevel() (level int) {
 	}
 	return
 }
+
+// NewGLogWriterV returns a new Writer that delegates to `glog.Info` at the
+// desired level of verbosity
+func NewGLogWriterV(level int) io.Writer {
+	return &gLogWriter{
+		level: glog.Level(level),
+	}
+}
+
+// gLogWriter is a Writer that writes by delegating to `glog.Info`
+type gLogWriter struct {
+	// level is the default level to log at
+	level glog.Level
+}
+
+func (w *gLogWriter) Write(p []byte) (n int, err error) {
+	glog.V(w.level).InfoDepth(2, string(p))
+
+	return len(p), nil
+}