Merge pull request #59874 from dims/log-command-line-flags

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Log the command line flags

**What this PR does / why we need it**:

With d7ddcca231, we lost the logging
of the flags. We should at least log what the command line flags
were used to start processes as those incredibly useful for trouble shooting.


**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:
/assign @deads2k 
/assign @liggitt 

**Release note**:

```release-note
NONE
```

cmd/kubelet/app/BUILD

@@ -94,6 +94,7 @@ go_library(
         "//pkg/kubelet/types:go_default_library",
         "//pkg/util/configz:go_default_library",
         "//pkg/util/filesystem:go_default_library",
+        "//pkg/util/flag:go_default_library",
         "//pkg/util/flock:go_default_library",
         "//pkg/util/io:go_default_library",
         "//pkg/util/mount:go_default_library",

cmd/kubelet/app/server.go

@@ -31,7 +31,6 @@ import (
 	"path"
 	"path/filepath"
 	"strconv"
-	"strings"
 	"time"
 
 	"github.com/golang/glog"
@@ -84,6 +83,7 @@ import (
 	kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
 	"k8s.io/kubernetes/pkg/util/configz"
 	utilfs "k8s.io/kubernetes/pkg/util/filesystem"
+	utilflag "k8s.io/kubernetes/pkg/util/flag"
 	"k8s.io/kubernetes/pkg/util/flock"
 	kubeio "k8s.io/kubernetes/pkg/util/io"
 	"k8s.io/kubernetes/pkg/util/mount"
@@ -154,9 +154,7 @@ HTTP server: The kubelet can also listen for HTTP and respond to a simple API
 
 			// short-circuit on verflag
 			verflag.PrintAndExitIfRequested()
-
-			// log args (separate lines, so we don't overflow line-length limits in logging infrastructure)
-			glog.V(2).Infof("kubelet flags: %s", strings.Join(args, "\n"))
+			utilflag.PrintFlags(cleanFlagSet)
 
 			// set feature gates from initial flags-based config
 			if err := utilfeature.DefaultFeatureGate.SetFromMap(kubeletConfig.FeatureGates); err != nil {