Bump k8s.io/api from 0.20.5 to 0.21.0

Bumps [k8s.io/api](https://github.com/kubernetes/api) from 0.20.5 to 0.21.0.
- [Release notes](https://github.com/kubernetes/api/releases)
- [Commits](https://github.com/kubernetes/api/compare/v0.20.5...v0.21.0)

Signed-off-by: dependabot[bot] <support@github.com>

3 files changed, 36 insertions, 22 deletions

diff --git a/vendor/k8s.io/klog/v2/go.mod b/vendor/k8s.io/klog/v2/go.mod
index e396e31c0..eb297b6a1 100644
--- a/vendor/k8s.io/klog/v2/go.mod
+++ b/vendor/k8s.io/klog/v2/go.mod
@@ -2,4 +2,4 @@ module k8s.io/klog/v2
 
 go 1.13
 
-require github.com/go-logr/logr v0.2.0
+require github.com/go-logr/logr v0.4.0
diff --git a/vendor/k8s.io/klog/v2/go.sum b/vendor/k8s.io/klog/v2/go.sum
index 8dfa78542..5778f8174 100644
--- a/vendor/k8s.io/klog/v2/go.sum
+++ b/vendor/k8s.io/klog/v2/go.sum
@@ -1,2 +1,2 @@
-github.com/go-logr/logr v0.2.0 h1:QvGt2nLcHH0WK9orKa+ppBPAxREcH364nPUedEpK0TY=
-github.com/go-logr/logr v0.2.0/go.mod h1:z6/tIYblkpsD+a4lm/fGIIU9mZ+XfAiaFtq7xTgseGU=
+github.com/go-logr/logr v0.4.0 h1:K7/B1jt6fIBQVd4Owv2MqGQClcgf0R266+7C/QjRcLc=
+github.com/go-logr/logr v0.4.0/go.mod h1:z6/tIYblkpsD+a4lm/fGIIU9mZ+XfAiaFtq7xTgseGU=
diff --git a/vendor/k8s.io/klog/v2/klog.go b/vendor/k8s.io/klog/v2/klog.go
index 23cced625..25483fad1 100644
--- a/vendor/k8s.io/klog/v2/klog.go
+++ b/vendor/k8s.io/klog/v2/klog.go
@@ -81,6 +81,7 @@ import (
 	"math"
 	"os"
 	"path/filepath"
+	"reflect"
 	"runtime"
 	"strconv"
 	"strings"
@@ -433,7 +434,7 @@ func InitFlags(flagset *flag.FlagSet) {
 	flagset.Var(&logging.verbosity, "v", "number for the log level verbosity")
 	flagset.BoolVar(&logging.addDirHeader, "add_dir_header", logging.addDirHeader, "If true, adds the file directory to the header of the log messages")
 	flagset.BoolVar(&logging.skipHeaders, "skip_headers", logging.skipHeaders, "If true, avoid header prefixes in the log messages")
-	flagset.BoolVar(&logging.oneOutput, "one_output", logging.oneOutput, "If true, only write logs to their native severity level (vs also writing to each lower severity level")
+	flagset.BoolVar(&logging.oneOutput, "one_output", logging.oneOutput, "If true, only write logs to their native severity level (vs also writing to each lower severity level)")
 	flagset.BoolVar(&logging.skipLogHeaders, "skip_log_headers", logging.skipLogHeaders, "If true, avoid headers when opening log files")
 	flagset.Var(&logging.stderrThreshold, "stderrthreshold", "logs at or above this threshold go to stderr")
 	flagset.Var(&logging.vmodule, "vmodule", "comma-separated list of pattern=N settings for file-filtered logging")
@@ -772,7 +773,7 @@ func (l *loggingT) printWithFileLine(s severity, logr logr.Logger, filter LogFil
 }
 
 // if loggr is specified, will call loggr.Error, otherwise output with logging module.
-func (l *loggingT) errorS(err error, loggr logr.Logger, filter LogFilter, msg string, keysAndValues ...interface{}) {
+func (l *loggingT) errorS(err error, loggr logr.Logger, filter LogFilter, depth int, msg string, keysAndValues ...interface{}) {
 	if filter != nil {
 		msg, keysAndValues = filter.FilterS(msg, keysAndValues)
 	}
@@ -780,11 +781,11 @@ func (l *loggingT) errorS(err error, loggr logr.Logger, filter LogFilter, msg st
 		loggr.Error(err, msg, keysAndValues...)
 		return
 	}
-	l.printS(err, msg, keysAndValues...)
+	l.printS(err, errorLog, depth+1, msg, keysAndValues...)
 }
 
 // if loggr is specified, will call loggr.Info, otherwise output with logging module.
-func (l *loggingT) infoS(loggr logr.Logger, filter LogFilter, msg string, keysAndValues ...interface{}) {
+func (l *loggingT) infoS(loggr logr.Logger, filter LogFilter, depth int, msg string, keysAndValues ...interface{}) {
 	if filter != nil {
 		msg, keysAndValues = filter.FilterS(msg, keysAndValues)
 	}
@@ -792,12 +793,12 @@ func (l *loggingT) infoS(loggr logr.Logger, filter LogFilter, msg string, keysAn
 		loggr.Info(msg, keysAndValues...)
 		return
 	}
-	l.printS(nil, msg, keysAndValues...)
+	l.printS(nil, infoLog, depth+1, msg, keysAndValues...)
 }
 
 // printS is called from infoS and errorS if loggr is not specified.
-// if err arguments is specified, will output to errorLog severity
-func (l *loggingT) printS(err error, msg string, keysAndValues ...interface{}) {
+// set log severity by s
+func (l *loggingT) printS(err error, s severity, depth int, msg string, keysAndValues ...interface{}) {
 	b := &bytes.Buffer{}
 	b.WriteString(fmt.Sprintf("%q", msg))
 	if err != nil {
@@ -805,13 +806,7 @@ func (l *loggingT) printS(err error, msg string, keysAndValues ...interface{}) {
 		b.WriteString(fmt.Sprintf("err=%q", err.Error()))
 	}
 	kvListFormat(b, keysAndValues...)
-	var s severity
-	if err == nil {
-		s = infoLog
-	} else {
-		s = errorLog
-	}
-	l.printDepth(s, logging.logr, nil, 2, b)
+	l.printDepth(s, logging.logr, nil, depth+1, b)
 }
 
 const missingValue = "(MISSING)"
@@ -1359,14 +1354,20 @@ func (v Verbose) Infof(format string, args ...interface{}) {
 // See the documentation of V for usage.
 func (v Verbose) InfoS(msg string, keysAndValues ...interface{}) {
 	if v.enabled {
-		logging.infoS(v.logr, v.filter, msg, keysAndValues...)
+		logging.infoS(v.logr, v.filter, 0, msg, keysAndValues...)
 	}
 }
 
+// InfoSDepth acts as InfoS but uses depth to determine which call frame to log.
+// InfoSDepth(0, "msg") is the same as InfoS("msg").
+func InfoSDepth(depth int, msg string, keysAndValues ...interface{}) {
+	logging.infoS(logging.logr, logging.filter, depth, msg, keysAndValues...)
+}
+
 // Deprecated: Use ErrorS instead.
 func (v Verbose) Error(err error, msg string, args ...interface{}) {
 	if v.enabled {
-		logging.errorS(err, v.logr, v.filter, msg, args...)
+		logging.errorS(err, v.logr, v.filter, 0, msg, args...)
 	}
 }
 
@@ -1374,7 +1375,7 @@ func (v Verbose) Error(err error, msg string, args ...interface{}) {
 // See the documentation of V for usage.
 func (v Verbose) ErrorS(err error, msg string, keysAndValues ...interface{}) {
 	if v.enabled {
-		logging.errorS(err, v.logr, v.filter, msg, keysAndValues...)
+		logging.errorS(err, v.logr, v.filter, 0, msg, keysAndValues...)
 	}
 }
 
@@ -1411,7 +1412,7 @@ func Infof(format string, args ...interface{}) {
 // output:
 // >> I1025 00:15:15.525108       1 controller_utils.go:116] "Pod status updated" pod="kubedns" status="ready"
 func InfoS(msg string, keysAndValues ...interface{}) {
-	logging.infoS(logging.logr, logging.filter, msg, keysAndValues...)
+	logging.infoS(logging.logr, logging.filter, 0, msg, keysAndValues...)
 }
 
 // Warning logs to the WARNING and INFO logs.
@@ -1472,7 +1473,13 @@ func Errorf(format string, args ...interface{}) {
 // output:
 // >> E1025 00:15:15.525108       1 controller_utils.go:114] "Failed to update pod status" err="timeout"
 func ErrorS(err error, msg string, keysAndValues ...interface{}) {
-	logging.errorS(err, logging.logr, logging.filter, msg, keysAndValues...)
+	logging.errorS(err, logging.logr, logging.filter, 0, msg, keysAndValues...)
+}
+
+// ErrorSDepth acts as ErrorS but uses depth to determine which call frame to log.
+// ErrorSDepth(0, "msg") is the same as ErrorS("msg").
+func ErrorSDepth(depth int, err error, msg string, keysAndValues ...interface{}) {
+	logging.errorS(err, logging.logr, logging.filter, depth, msg, keysAndValues...)
 }
 
 // Fatal logs to the FATAL, ERROR, WARNING, and INFO logs,
@@ -1571,6 +1578,13 @@ type KMetadata interface {
 
 // KObj returns ObjectRef from ObjectMeta
 func KObj(obj KMetadata) ObjectRef {
+	if obj == nil {
+		return ObjectRef{}
+	}
+	if val := reflect.ValueOf(obj); val.Kind() == reflect.Ptr && val.IsNil() {
+		return ObjectRef{}
+	}
+
 	return ObjectRef{
 		Name:      obj.GetName(),
 		Namespace: obj.GetNamespace(),