dep: lift kube dependency to v0.18.6

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

vendor/k8s.io/apimachinery/pkg/util/json/json.go

@@ -66,11 +66,36 @@ func Unmarshal(data []byte, v interface{}) error {
 		// If the decode succeeds, post-process the map to convert json.Number objects to int64 or float64
 		return convertSliceNumbers(*v, 0)
 
+	case *interface{}:
+		// Build a decoder from the given data
+		decoder := json.NewDecoder(bytes.NewBuffer(data))
+		// Preserve numbers, rather than casting to float64 automatically
+		decoder.UseNumber()
+		// Run the decode
+		if err := decoder.Decode(v); err != nil {
+			return err
+		}
+		// If the decode succeeds, post-process the map to convert json.Number objects to int64 or float64
+		return convertInterfaceNumbers(v, 0)
+
 	default:
 		return json.Unmarshal(data, v)
 	}
 }
 
+func convertInterfaceNumbers(v *interface{}, depth int) error {
+	var err error
+	switch v2 := (*v).(type) {
+	case json.Number:
+		*v, err = convertNumber(v2)
+	case map[string]interface{}:
+		err = convertMapNumbers(v2, depth+1)
+	case []interface{}:
+		err = convertSliceNumbers(v2, depth+1)
+	}
+	return err
+}
+
 // convertMapNumbers traverses the map, converting any json.Number values to int64 or float64.
 // values which are map[string]interface{} or []interface{} are recursively visited
 func convertMapNumbers(m map[string]interface{}, depth int) error {

vendor/k8s.io/apimachinery/pkg/util/net/http.go

@@ -55,6 +55,12 @@ func JoinPreservingTrailingSlash(elem ...string) string {
 	return result
 }
 
+// IsTimeout returns true if the given error is a network timeout error
+func IsTimeout(err error) bool {
+	neterr, ok := err.(net.Error)
+	return ok && neterr != nil && neterr.Timeout()
+}
+
 // IsProbableEOF returns true if the given error resembles a connection termination
 // scenario that would justify assuming that the watch is empty.
 // These errors are what the Go http stack returns back to us which are general
@@ -440,7 +446,7 @@ redirectLoop:
 
 		// Only follow redirects to the same host. Otherwise, propagate the redirect response back.
 		if requireSameHostRedirects && location.Hostname() != originalLocation.Hostname() {
-			break redirectLoop
+			return nil, nil, fmt.Errorf("hostname mismatch: expected %s, found %s", originalLocation.Hostname(), location.Hostname())
 		}
 
 		// Reset the connection.

vendor/k8s.io/apimachinery/pkg/util/wait/wait.go

@@ -286,8 +286,9 @@ func contextForChannel(parentCh <-chan struct{}) (context.Context, context.Cance
 }
 
 // BackoffManager manages backoff with a particular scheme based on its underlying implementation. It provides
-// an interface to return a timer for backoff, and caller shall backoff until Timer.C returns. If the second Backoff()
-// is called before the timer from the first Backoff() call finishes, the first timer will NOT be drained.
+// an interface to return a timer for backoff, and caller shall backoff until Timer.C() drains. If the second Backoff()
+// is called before the timer from the first Backoff() call finishes, the first timer will NOT be drained and result in
+// undetermined behavior.
 // The BackoffManager is supposed to be called in a single-threaded environment.
 type BackoffManager interface {
 	Backoff() clock.Timer
@@ -317,7 +318,7 @@ func NewExponentialBackoffManager(initBackoff, maxBackoff, resetDuration time.Du
 			Steps: math.MaxInt32,
 			Cap:   maxBackoff,
 		},
-		backoffTimer:         c.NewTimer(0),
+		backoffTimer:         nil,
 		initialBackoff:       initBackoff,
 		lastBackoffStart:     c.Now(),
 		backoffResetDuration: resetDuration,
@@ -334,9 +335,14 @@ func (b *exponentialBackoffManagerImpl) getNextBackoff() time.Duration {
 	return b.backoff.Step()
 }
 
-// Backoff implements BackoffManager.Backoff, it returns a timer so caller can block on the timer for backoff.
+// Backoff implements BackoffManager.Backoff, it returns a timer so caller can block on the timer for exponential backoff.
+// The returned timer must be drained before calling Backoff() the second time
 func (b *exponentialBackoffManagerImpl) Backoff() clock.Timer {
-	b.backoffTimer.Reset(b.getNextBackoff())
+	if b.backoffTimer == nil {
+		b.backoffTimer = b.clock.NewTimer(b.getNextBackoff())
+	} else {
+		b.backoffTimer.Reset(b.getNextBackoff())
+	}
 	return b.backoffTimer
 }
 
@@ -354,7 +360,7 @@ func NewJitteredBackoffManager(duration time.Duration, jitter float64, c clock.C
 		clock:        c,
 		duration:     duration,
 		jitter:       jitter,
-		backoffTimer: c.NewTimer(0),
+		backoffTimer: nil,
 	}
 }
 
@@ -366,8 +372,15 @@ func (j *jitteredBackoffManagerImpl) getNextBackoff() time.Duration {
 	return jitteredPeriod
 }
 
+// Backoff implements BackoffManager.Backoff, it returns a timer so caller can block on the timer for jittered backoff.
+// The returned timer must be drained before calling Backoff() the second time
 func (j *jitteredBackoffManagerImpl) Backoff() clock.Timer {
-	j.backoffTimer.Reset(j.getNextBackoff())
+	backoff := j.getNextBackoff()
+	if j.backoffTimer == nil {
+		j.backoffTimer = j.clock.NewTimer(backoff)
+	} else {
+		j.backoffTimer.Reset(backoff)
+	}
 	return j.backoffTimer
 }