Update ingress godeps

vendor/k8s.io/kubernetes/pkg/util/config/config.go

@@ -0,0 +1,140 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package config
+
+import (
+	"sync"
+
+	"k8s.io/kubernetes/pkg/util/wait"
+)
+
+type Merger interface {
+	// Invoked when a change from a source is received.  May also function as an incremental
+	// merger if you wish to consume changes incrementally.  Must be reentrant when more than
+	// one source is defined.
+	Merge(source string, update interface{}) error
+}
+
+// MergeFunc implements the Merger interface
+type MergeFunc func(source string, update interface{}) error
+
+func (f MergeFunc) Merge(source string, update interface{}) error {
+	return f(source, update)
+}
+
+// Mux is a class for merging configuration from multiple sources.  Changes are
+// pushed via channels and sent to the merge function.
+type Mux struct {
+	// Invoked when an update is sent to a source.
+	merger Merger
+
+	// Sources and their lock.
+	sourceLock sync.RWMutex
+	// Maps source names to channels
+	sources map[string]chan interface{}
+}
+
+// NewMux creates a new mux that can merge changes from multiple sources.
+func NewMux(merger Merger) *Mux {
+	mux := &Mux{
+		sources: make(map[string]chan interface{}),
+		merger:  merger,
+	}
+	return mux
+}
+
+// Channel returns a channel where a configuration source
+// can send updates of new configurations. Multiple calls with the same
+// source will return the same channel. This allows change and state based sources
+// to use the same channel. Different source names however will be treated as a
+// union.
+func (m *Mux) Channel(source string) chan interface{} {
+	if len(source) == 0 {
+		panic("Channel given an empty name")
+	}
+	m.sourceLock.Lock()
+	defer m.sourceLock.Unlock()
+	channel, exists := m.sources[source]
+	if exists {
+		return channel
+	}
+	newChannel := make(chan interface{})
+	m.sources[source] = newChannel
+	go wait.Until(func() { m.listen(source, newChannel) }, 0, wait.NeverStop)
+	return newChannel
+}
+
+func (m *Mux) listen(source string, listenChannel <-chan interface{}) {
+	for update := range listenChannel {
+		m.merger.Merge(source, update)
+	}
+}
+
+// Accessor is an interface for retrieving the current merge state.
+type Accessor interface {
+	// MergedState returns a representation of the current merge state.
+	// Must be reentrant when more than one source is defined.
+	MergedState() interface{}
+}
+
+// AccessorFunc implements the Accessor interface.
+type AccessorFunc func() interface{}
+
+func (f AccessorFunc) MergedState() interface{} {
+	return f()
+}
+
+type Listener interface {
+	// OnUpdate is invoked when a change is made to an object.
+	OnUpdate(instance interface{})
+}
+
+// ListenerFunc receives a representation of the change or object.
+type ListenerFunc func(instance interface{})
+
+func (f ListenerFunc) OnUpdate(instance interface{}) {
+	f(instance)
+}
+
+type Broadcaster struct {
+	// Listeners for changes and their lock.
+	listenerLock sync.RWMutex
+	listeners    []Listener
+}
+
+// NewBroadcaster registers a set of listeners that support the Listener interface
+// and notifies them all on changes.
+func NewBroadcaster() *Broadcaster {
+	return &Broadcaster{}
+}
+
+// Add registers listener to receive updates of changes.
+func (b *Broadcaster) Add(listener Listener) {
+	b.listenerLock.Lock()
+	defer b.listenerLock.Unlock()
+	b.listeners = append(b.listeners, listener)
+}
+
+// Notify notifies all listeners.
+func (b *Broadcaster) Notify(instance interface{}) {
+	b.listenerLock.RLock()
+	listeners := b.listeners
+	b.listenerLock.RUnlock()
+	for _, listener := range listeners {
+		listener.OnUpdate(instance)
+	}
+}

vendor/k8s.io/kubernetes/pkg/util/config/configuration_map.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package config
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+)
+
+type ConfigurationMap map[string]string
+
+func (m *ConfigurationMap) String() string {
+	pairs := []string{}
+	for k, v := range *m {
+		pairs = append(pairs, fmt.Sprintf("%s=%s", k, v))
+	}
+	sort.Strings(pairs)
+	return strings.Join(pairs, ",")
+}
+
+func (m *ConfigurationMap) Set(value string) error {
+	for _, s := range strings.Split(value, ",") {
+		if len(s) == 0 {
+			continue
+		}
+		arr := strings.SplitN(s, "=", 2)
+		if len(arr) == 2 {
+			(*m)[strings.TrimSpace(arr[0])] = strings.TrimSpace(arr[1])
+		} else {
+			(*m)[strings.TrimSpace(arr[0])] = ""
+		}
+	}
+	return nil
+}
+
+func (*ConfigurationMap) Type() string {
+	return "mapStringString"
+}

vendor/k8s.io/kubernetes/pkg/util/config/doc.go

@@ -0,0 +1,20 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package config provides utility objects for decoupling sources of configuration and the
+// actual configuration state. Consumers must implement the Merger interface to unify
+// the sources of change into an object.
+package config

vendor/k8s.io/kubernetes/pkg/util/config/feature_gate.go

@@ -0,0 +1,212 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package config
+
+import (
+	"fmt"
+	"sort"
+	"strconv"
+	"strings"
+
+	"github.com/golang/glog"
+	"github.com/spf13/pflag"
+)
+
+const (
+	flagName = "feature-gates"
+
+	// All known feature keys
+	// To add a new feature, define a key for it below and add
+	// a featureSpec entry to knownFeatures.
+
+	// allAlphaGate is a global toggle for alpha features. Per-feature key
+	// values override the default set by allAlphaGate. Examples:
+	//   AllAlpha=false,NewFeature=true  will result in newFeature=true
+	//   AllAlpha=true,NewFeature=false  will result in newFeature=false
+	allAlphaGate              = "AllAlpha"
+	externalTrafficLocalOnly  = "AllowExtTrafficLocalEndpoints"
+	dynamicKubeletConfig      = "DynamicKubeletConfig"
+	dynamicVolumeProvisioning = "DynamicVolumeProvisioning"
+	// TODO: Define gate/accessor for AppArmor
+)
+
+var (
+	// Default values for recorded features.  Every new feature gate should be
+	// represented here.
+	knownFeatures = map[string]featureSpec{
+		allAlphaGate:              {false, alpha},
+		externalTrafficLocalOnly:  {false, alpha},
+		dynamicKubeletConfig:      {false, alpha},
+		dynamicVolumeProvisioning: {true, alpha},
+	}
+
+	// Special handling for a few gates.
+	specialFeatures = map[string]func(f *featureGate, val bool){
+		allAlphaGate: setUnsetAlphaGates,
+	}
+
+	// DefaultFeatureGate is a shared global FeatureGate.
+	DefaultFeatureGate = &featureGate{
+		known:   knownFeatures,
+		special: specialFeatures,
+	}
+)
+
+type featureSpec struct {
+	enabled    bool
+	prerelease prerelease
+}
+
+type prerelease string
+
+const (
+	// Values for prerelease.
+	alpha = prerelease("ALPHA")
+	beta  = prerelease("BETA")
+	ga    = prerelease("")
+)
+
+// FeatureGate parses and stores flag gates for known features from
+// a string like feature1=true,feature2=false,...
+type FeatureGate interface {
+	AddFlag(fs *pflag.FlagSet)
+
+	// Every feature gate should add method here following this template:
+	//
+	// // owner: @username
+	// // alpha: v1.4
+	// MyFeature() bool
+
+	// owner: @girishkalele
+	// alpha: v1.4
+	ExternalTrafficLocalOnly() bool
+
+	// owner: @saad-ali
+	// alpha: v1.3
+	DynamicVolumeProvisioning() bool
+
+	// owner: mtaufen
+	// alpha: v1.4
+	DynamicKubeletConfig() bool
+}
+
+// featureGate implements FeatureGate as well as pflag.Value for flag parsing.
+type featureGate struct {
+	known   map[string]featureSpec
+	special map[string]func(*featureGate, bool)
+	enabled map[string]bool
+}
+
+func setUnsetAlphaGates(f *featureGate, val bool) {
+	for k, v := range f.known {
+		if v.prerelease == alpha {
+			if _, found := f.enabled[k]; !found {
+				f.enabled[k] = val
+			}
+		}
+	}
+}
+
+// Set, String, and Type implement pflag.Value
+
+// Set Parses a string of the form // "key1=value1,key2=value2,..." into a
+// map[string]bool of known keys or returns an error.
+func (f *featureGate) Set(value string) error {
+	f.enabled = make(map[string]bool)
+	for _, s := range strings.Split(value, ",") {
+		if len(s) == 0 {
+			continue
+		}
+		arr := strings.SplitN(s, "=", 2)
+		k := strings.TrimSpace(arr[0])
+		_, ok := f.known[k]
+		if !ok {
+			return fmt.Errorf("unrecognized key: %s", k)
+		}
+		if len(arr) != 2 {
+			return fmt.Errorf("missing bool value for %s", k)
+		}
+		v := strings.TrimSpace(arr[1])
+		boolValue, err := strconv.ParseBool(v)
+		if err != nil {
+			return fmt.Errorf("invalid value of %s: %s, err: %v", k, v, err)
+		}
+		f.enabled[k] = boolValue
+
+		// Handle "special" features like "all alpha gates"
+		if fn, found := f.special[k]; found {
+			fn(f, boolValue)
+		}
+	}
+
+	glog.Infof("feature gates: %v", f.enabled)
+	return nil
+}
+
+func (f *featureGate) String() string {
+	pairs := []string{}
+	for k, v := range f.enabled {
+		pairs = append(pairs, fmt.Sprintf("%s=%t", k, v))
+	}
+	sort.Strings(pairs)
+	return strings.Join(pairs, ",")
+}
+
+func (f *featureGate) Type() string {
+	return "mapStringBool"
+}
+
+// ExternalTrafficLocalOnly returns value for AllowExtTrafficLocalEndpoints
+func (f *featureGate) ExternalTrafficLocalOnly() bool {
+	return f.lookup(externalTrafficLocalOnly)
+}
+
+// DynamicKubeletConfig returns value for dynamicKubeletConfig
+func (f *featureGate) DynamicKubeletConfig() bool {
+	return f.lookup(dynamicKubeletConfig)
+}
+
+// DynamicVolumeProvisioning returns value for dynamicVolumeProvisioning
+func (f *featureGate) DynamicVolumeProvisioning() bool {
+	return f.lookup(dynamicVolumeProvisioning)
+}
+
+func (f *featureGate) lookup(key string) bool {
+	defaultValue := f.known[key].enabled
+	if f.enabled != nil {
+		if v, ok := f.enabled[key]; ok {
+			return v
+		}
+	}
+	return defaultValue
+
+}
+
+// AddFlag adds a flag for setting global feature gates to the specified FlagSet.
+func (f *featureGate) AddFlag(fs *pflag.FlagSet) {
+	var known []string
+	for k, v := range f.known {
+		pre := ""
+		if v.prerelease != ga {
+			pre = fmt.Sprintf("%s - ", v.prerelease)
+		}
+		known = append(known, fmt.Sprintf("%s=true|false (%sdefault=%t)", k, pre, v.enabled))
+	}
+	fs.Var(f, flagName, ""+
+		"A set of key=value pairs that describe feature gates for alpha/experimental features. "+
+		"Options are:\n"+strings.Join(known, "\n"))
+}