Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/cmd/kubeadm/app/features/features.go

@@ -0,0 +1,183 @@
+/*
+Copyright 2017 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 features
+
+import (
+	"fmt"
+	"sort"
+	"strconv"
+	"strings"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	"k8s.io/kubernetes/pkg/util/version"
+)
+
+const (
+	// HighAvailability is alpha in v1.9
+	HighAvailability = "HighAvailability"
+
+	// CoreDNS is GA in v1.11
+	CoreDNS = "CoreDNS"
+
+	// SelfHosting is alpha in v1.8 and v1.9
+	SelfHosting = "SelfHosting"
+
+	// StoreCertsInSecrets is alpha in v1.8 and v1.9
+	StoreCertsInSecrets = "StoreCertsInSecrets"
+
+	// DynamicKubeletConfig is alpha in v1.9
+	DynamicKubeletConfig = "DynamicKubeletConfig"
+
+	// Auditing is beta in 1.8
+	Auditing = "Auditing"
+)
+
+// InitFeatureGates are the default feature gates for the init command
+var InitFeatureGates = FeatureList{
+	SelfHosting:         {FeatureSpec: utilfeature.FeatureSpec{Default: false, PreRelease: utilfeature.Alpha}},
+	StoreCertsInSecrets: {FeatureSpec: utilfeature.FeatureSpec{Default: false, PreRelease: utilfeature.Alpha}},
+	// We don't want to advertise this feature gate exists in v1.9 to avoid confusion as it is not yet working
+	HighAvailability:     {FeatureSpec: utilfeature.FeatureSpec{Default: false, PreRelease: utilfeature.Alpha}, HiddenInHelpText: true},
+	CoreDNS:              {FeatureSpec: utilfeature.FeatureSpec{Default: true, PreRelease: utilfeature.GA}},
+	DynamicKubeletConfig: {FeatureSpec: utilfeature.FeatureSpec{Default: false, PreRelease: utilfeature.Alpha}},
+	Auditing:             {FeatureSpec: utilfeature.FeatureSpec{Default: false, PreRelease: utilfeature.Alpha}},
+}
+
+// Feature represents a feature being gated
+type Feature struct {
+	utilfeature.FeatureSpec
+	MinimumVersion   *version.Version
+	HiddenInHelpText bool
+}
+
+// FeatureList represents a list of feature gates
+type FeatureList map[string]Feature
+
+// ValidateVersion ensures that a feature gate list is compatible with the chosen kubernetes version
+func ValidateVersion(allFeatures FeatureList, requestedFeatures map[string]bool, requestedVersion string) error {
+	if requestedVersion == "" {
+		return nil
+	}
+	parsedExpVersion, err := version.ParseSemantic(requestedVersion)
+	if err != nil {
+		return fmt.Errorf("Error parsing version %s: %v", requestedVersion, err)
+	}
+	for k := range requestedFeatures {
+		if minVersion := allFeatures[k].MinimumVersion; minVersion != nil {
+			if !parsedExpVersion.AtLeast(minVersion) {
+				return fmt.Errorf(
+					"the requested kubernetes version (%s) is incompatible with the %s feature gate, which needs %s as a minimum",
+					requestedVersion, k, minVersion)
+			}
+		}
+	}
+	return nil
+}
+
+// Enabled indicates whether a feature name has been enabled
+func Enabled(featureList map[string]bool, featureName string) bool {
+	if enabled, ok := featureList[string(featureName)]; ok {
+		return enabled
+	}
+	return InitFeatureGates[string(featureName)].Default
+}
+
+// Supports indicates whether a feature name is supported on the given
+// feature set
+func Supports(featureList FeatureList, featureName string) bool {
+	for k := range featureList {
+		if featureName == string(k) {
+			return true
+		}
+	}
+	return false
+}
+
+// Keys returns a slice of feature names for a given feature set
+func Keys(featureList FeatureList) []string {
+	var list []string
+	for k := range featureList {
+		list = append(list, string(k))
+	}
+	return list
+}
+
+// KnownFeatures returns a slice of strings describing the FeatureList features.
+func KnownFeatures(f *FeatureList) []string {
+	var known []string
+	for k, v := range *f {
+		if v.HiddenInHelpText {
+			continue
+		}
+
+		pre := ""
+		if v.PreRelease != utilfeature.GA {
+			pre = fmt.Sprintf("%s - ", v.PreRelease)
+		}
+		known = append(known, fmt.Sprintf("%s=true|false (%sdefault=%t)", k, pre, v.Default))
+	}
+	sort.Strings(known)
+	return known
+}
+
+// NewFeatureGate parses a string of the form "key1=value1,key2=value2,..." into a
+// map[string]bool of known keys or returns an error.
+func NewFeatureGate(f *FeatureList, value string) (map[string]bool, error) {
+	featureGate := map[string]bool{}
+	for _, s := range strings.Split(value, ",") {
+		if len(s) == 0 {
+			continue
+		}
+
+		arr := strings.SplitN(s, "=", 2)
+		if len(arr) != 2 {
+			return nil, fmt.Errorf("missing bool value for feature-gate key:%s", s)
+		}
+
+		k := strings.TrimSpace(arr[0])
+		v := strings.TrimSpace(arr[1])
+
+		if !Supports(*f, k) {
+			return nil, fmt.Errorf("unrecognized feature-gate key: %s", k)
+		}
+
+		boolValue, err := strconv.ParseBool(v)
+		if err != nil {
+			return nil, fmt.Errorf("invalid value %v for feature-gate key: %s, use true|false instead", v, k)
+		}
+		featureGate[k] = boolValue
+	}
+
+	ResolveFeatureGateDependencies(featureGate)
+
+	return featureGate, nil
+}
+
+// ResolveFeatureGateDependencies resolve dependencies between feature gates
+func ResolveFeatureGateDependencies(featureGate map[string]bool) {
+
+	// if StoreCertsInSecrets enabled, SelfHosting should enabled
+	if Enabled(featureGate, StoreCertsInSecrets) {
+		featureGate[SelfHosting] = true
+	}
+
+	// if HighAvailability enabled, both StoreCertsInSecrets and SelfHosting should enabled
+	if Enabled(featureGate, HighAvailability) && !Enabled(featureGate, StoreCertsInSecrets) {
+		featureGate[SelfHosting] = true
+		featureGate[StoreCertsInSecrets] = true
+	}
+}