synchronization
This commit is contained in:
202
gpushare-device-plugin/vendor/k8s.io/apiserver/LICENSE
generated
vendored
Normal file
202
gpushare-device-plugin/vendor/k8s.io/apiserver/LICENSE
generated
vendored
Normal file
@@ -0,0 +1,202 @@
|
||||
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
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|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
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|
||||
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|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
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|
||||
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|
||||
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|
||||
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"You" (or "Your") shall mean an individual or Legal Entity
|
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"Source" form shall mean the preferred form for making modifications,
|
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"Work" shall mean the work of authorship, whether in Source or
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|
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|
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|
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You may add Your own copyright statement to Your modifications and
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|
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|
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|
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5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||
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|
||||
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|
||||
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|
||||
Notwithstanding the above, nothing herein shall supersede or modify
|
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|
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|
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|
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6. Trademarks. This License does not grant permission to use the trade
|
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|
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END OF TERMS AND CONDITIONS
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APPENDIX: How to apply the Apache License to your work.
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To apply the Apache License to your work, attach the following
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
2
gpushare-device-plugin/vendor/k8s.io/apiserver/pkg/features/OWNERS
generated
vendored
Normal file
2
gpushare-device-plugin/vendor/k8s.io/apiserver/pkg/features/OWNERS
generated
vendored
Normal file
@@ -0,0 +1,2 @@
|
||||
approvers:
|
||||
- feature-approvers
|
81
gpushare-device-plugin/vendor/k8s.io/apiserver/pkg/features/kube_features.go
generated
vendored
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81
gpushare-device-plugin/vendor/k8s.io/apiserver/pkg/features/kube_features.go
generated
vendored
Normal file
@@ -0,0 +1,81 @@
|
||||
/*
|
||||
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 (
|
||||
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
||||
)
|
||||
|
||||
const (
|
||||
// Every feature gate should add method here following this template:
|
||||
//
|
||||
// // owner: @username
|
||||
// // alpha: v1.4
|
||||
// MyFeature() bool
|
||||
|
||||
// owner: @tallclair
|
||||
// alpha: v1.5
|
||||
//
|
||||
// StreamingProxyRedirects controls whether the apiserver should intercept (and follow)
|
||||
// redirects from the backend (Kubelet) for streaming requests (exec/attach/port-forward).
|
||||
StreamingProxyRedirects utilfeature.Feature = "StreamingProxyRedirects"
|
||||
|
||||
// owner: @tallclair
|
||||
// alpha: v1.7
|
||||
// beta: v1.8
|
||||
//
|
||||
// AdvancedAuditing enables a much more general API auditing pipeline, which includes support for
|
||||
// pluggable output backends and an audit policy specifying how different requests should be
|
||||
// audited.
|
||||
AdvancedAuditing utilfeature.Feature = "AdvancedAuditing"
|
||||
|
||||
// owner: @ilackams
|
||||
// alpha: v1.7
|
||||
//
|
||||
// Enables compression of REST responses (GET and LIST only)
|
||||
APIResponseCompression utilfeature.Feature = "APIResponseCompression"
|
||||
|
||||
// owner: @smarterclayton
|
||||
// alpha: v1.7
|
||||
//
|
||||
// Allow asynchronous coordination of object creation.
|
||||
// Auto-enabled by the Initializers admission plugin.
|
||||
Initializers utilfeature.Feature = "Initializers"
|
||||
|
||||
// owner: @smarterclayton
|
||||
// alpha: v1.8
|
||||
// beta: v1.9
|
||||
//
|
||||
// Allow API clients to retrieve resource lists in chunks rather than
|
||||
// all at once.
|
||||
APIListChunking utilfeature.Feature = "APIListChunking"
|
||||
)
|
||||
|
||||
func init() {
|
||||
utilfeature.DefaultFeatureGate.Add(defaultKubernetesFeatureGates)
|
||||
}
|
||||
|
||||
// defaultKubernetesFeatureGates consists of all known Kubernetes-specific feature keys.
|
||||
// To add a new feature, define a key for it above and add it here. The features will be
|
||||
// available throughout Kubernetes binaries.
|
||||
var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureSpec{
|
||||
StreamingProxyRedirects: {Default: true, PreRelease: utilfeature.Beta},
|
||||
AdvancedAuditing: {Default: true, PreRelease: utilfeature.Beta},
|
||||
APIResponseCompression: {Default: false, PreRelease: utilfeature.Alpha},
|
||||
Initializers: {Default: false, PreRelease: utilfeature.Alpha},
|
||||
APIListChunking: {Default: true, PreRelease: utilfeature.Beta},
|
||||
}
|
347
gpushare-device-plugin/vendor/k8s.io/apiserver/pkg/util/feature/feature_gate.go
generated
vendored
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347
gpushare-device-plugin/vendor/k8s.io/apiserver/pkg/util/feature/feature_gate.go
generated
vendored
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@@ -0,0 +1,347 @@
|
||||
/*
|
||||
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 feature
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
|
||||
"github.com/golang/glog"
|
||||
"github.com/spf13/pflag"
|
||||
)
|
||||
|
||||
type Feature string
|
||||
|
||||
const (
|
||||
flagName = "feature-gates"
|
||||
|
||||
// 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 Feature = "AllAlpha"
|
||||
)
|
||||
|
||||
var (
|
||||
// The generic features.
|
||||
defaultFeatures = map[Feature]FeatureSpec{
|
||||
allAlphaGate: {Default: false, PreRelease: Alpha},
|
||||
}
|
||||
|
||||
// Special handling for a few gates.
|
||||
specialFeatures = map[Feature]func(known map[Feature]FeatureSpec, enabled map[Feature]bool, val bool){
|
||||
allAlphaGate: setUnsetAlphaGates,
|
||||
}
|
||||
|
||||
// DefaultFeatureGate is a shared global FeatureGate.
|
||||
DefaultFeatureGate FeatureGate = NewFeatureGate()
|
||||
)
|
||||
|
||||
type FeatureSpec struct {
|
||||
Default bool
|
||||
PreRelease prerelease
|
||||
}
|
||||
|
||||
type prerelease string
|
||||
|
||||
const (
|
||||
// Values for PreRelease.
|
||||
Alpha = prerelease("ALPHA")
|
||||
Beta = prerelease("BETA")
|
||||
GA = prerelease("")
|
||||
|
||||
// Deprecated
|
||||
Deprecated = prerelease("DEPRECATED")
|
||||
)
|
||||
|
||||
// FeatureGate parses and stores flag gates for known features from
|
||||
// a string like feature1=true,feature2=false,...
|
||||
type FeatureGate interface {
|
||||
// AddFlag adds a flag for setting global feature gates to the specified FlagSet.
|
||||
AddFlag(fs *pflag.FlagSet)
|
||||
// Set parses and stores flag gates for known features
|
||||
// from a string like feature1=true,feature2=false,...
|
||||
Set(value string) error
|
||||
// SetFromMap stores flag gates for known features from a map[string]bool or returns an error
|
||||
SetFromMap(m map[string]bool) error
|
||||
// Enabled returns true if the key is enabled.
|
||||
Enabled(key Feature) bool
|
||||
// Add adds features to the featureGate.
|
||||
Add(features map[Feature]FeatureSpec) error
|
||||
// KnownFeatures returns a slice of strings describing the FeatureGate's known features.
|
||||
KnownFeatures() []string
|
||||
// DeepCopy returns a deep copy of the FeatureGate object, such that gates can be
|
||||
// set on the copy without mutating the original. This is useful for validating
|
||||
// config against potential feature gate changes before committing those changes.
|
||||
DeepCopy() FeatureGate
|
||||
}
|
||||
|
||||
// featureGate implements FeatureGate as well as pflag.Value for flag parsing.
|
||||
type featureGate struct {
|
||||
special map[Feature]func(map[Feature]FeatureSpec, map[Feature]bool, bool)
|
||||
|
||||
// lock guards writes to known, enabled, and reads/writes of closed
|
||||
lock sync.Mutex
|
||||
// known holds a map[Feature]FeatureSpec
|
||||
known *atomic.Value
|
||||
// enabled holds a map[Feature]bool
|
||||
enabled *atomic.Value
|
||||
// closed is set to true when AddFlag is called, and prevents subsequent calls to Add
|
||||
closed bool
|
||||
}
|
||||
|
||||
func setUnsetAlphaGates(known map[Feature]FeatureSpec, enabled map[Feature]bool, val bool) {
|
||||
for k, v := range known {
|
||||
if v.PreRelease == Alpha {
|
||||
if _, found := enabled[k]; !found {
|
||||
enabled[k] = val
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Set, String, and Type implement pflag.Value
|
||||
var _ pflag.Value = &featureGate{}
|
||||
|
||||
func NewFeatureGate() *featureGate {
|
||||
known := map[Feature]FeatureSpec{}
|
||||
for k, v := range defaultFeatures {
|
||||
known[k] = v
|
||||
}
|
||||
|
||||
knownValue := &atomic.Value{}
|
||||
knownValue.Store(known)
|
||||
|
||||
enabled := map[Feature]bool{}
|
||||
enabledValue := &atomic.Value{}
|
||||
enabledValue.Store(enabled)
|
||||
|
||||
f := &featureGate{
|
||||
known: knownValue,
|
||||
special: specialFeatures,
|
||||
enabled: enabledValue,
|
||||
}
|
||||
return f
|
||||
}
|
||||
|
||||
// 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.lock.Lock()
|
||||
defer f.lock.Unlock()
|
||||
|
||||
// Copy existing state
|
||||
known := map[Feature]FeatureSpec{}
|
||||
for k, v := range f.known.Load().(map[Feature]FeatureSpec) {
|
||||
known[k] = v
|
||||
}
|
||||
enabled := map[Feature]bool{}
|
||||
for k, v := range f.enabled.Load().(map[Feature]bool) {
|
||||
enabled[k] = v
|
||||
}
|
||||
|
||||
for _, s := range strings.Split(value, ",") {
|
||||
if len(s) == 0 {
|
||||
continue
|
||||
}
|
||||
arr := strings.SplitN(s, "=", 2)
|
||||
k := Feature(strings.TrimSpace(arr[0]))
|
||||
featureSpec, ok := 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)
|
||||
}
|
||||
enabled[k] = boolValue
|
||||
if boolValue && featureSpec.PreRelease == Deprecated {
|
||||
glog.Warningf("enabling deprecated feature gate %s", k)
|
||||
}
|
||||
|
||||
// Handle "special" features like "all alpha gates"
|
||||
if fn, found := f.special[k]; found {
|
||||
fn(known, enabled, boolValue)
|
||||
}
|
||||
}
|
||||
|
||||
// Persist changes
|
||||
f.known.Store(known)
|
||||
f.enabled.Store(enabled)
|
||||
|
||||
glog.V(1).Infof("feature gates: %v", enabled)
|
||||
return nil
|
||||
}
|
||||
|
||||
// SetFromMap stores flag gates for known features from a map[string]bool or returns an error
|
||||
func (f *featureGate) SetFromMap(m map[string]bool) error {
|
||||
f.lock.Lock()
|
||||
defer f.lock.Unlock()
|
||||
|
||||
// Copy existing state
|
||||
known := map[Feature]FeatureSpec{}
|
||||
for k, v := range f.known.Load().(map[Feature]FeatureSpec) {
|
||||
known[k] = v
|
||||
}
|
||||
enabled := map[Feature]bool{}
|
||||
for k, v := range f.enabled.Load().(map[Feature]bool) {
|
||||
enabled[k] = v
|
||||
}
|
||||
|
||||
for k, v := range m {
|
||||
k := Feature(k)
|
||||
_, ok := known[k]
|
||||
if !ok {
|
||||
return fmt.Errorf("unrecognized key: %s", k)
|
||||
}
|
||||
enabled[k] = v
|
||||
// Handle "special" features like "all alpha gates"
|
||||
if fn, found := f.special[k]; found {
|
||||
fn(known, enabled, v)
|
||||
}
|
||||
}
|
||||
|
||||
// Persist changes
|
||||
f.known.Store(known)
|
||||
f.enabled.Store(enabled)
|
||||
|
||||
glog.V(1).Infof("feature gates: %v", f.enabled)
|
||||
return nil
|
||||
}
|
||||
|
||||
// String returns a string containing all enabled feature gates, formatted as "key1=value1,key2=value2,...".
|
||||
func (f *featureGate) String() string {
|
||||
pairs := []string{}
|
||||
for k, v := range f.enabled.Load().(map[Feature]bool) {
|
||||
pairs = append(pairs, fmt.Sprintf("%s=%t", k, v))
|
||||
}
|
||||
sort.Strings(pairs)
|
||||
return strings.Join(pairs, ",")
|
||||
}
|
||||
|
||||
func (f *featureGate) Type() string {
|
||||
return "mapStringBool"
|
||||
}
|
||||
|
||||
// Add adds features to the featureGate.
|
||||
func (f *featureGate) Add(features map[Feature]FeatureSpec) error {
|
||||
f.lock.Lock()
|
||||
defer f.lock.Unlock()
|
||||
|
||||
if f.closed {
|
||||
return fmt.Errorf("cannot add a feature gate after adding it to the flag set")
|
||||
}
|
||||
|
||||
// Copy existing state
|
||||
known := map[Feature]FeatureSpec{}
|
||||
for k, v := range f.known.Load().(map[Feature]FeatureSpec) {
|
||||
known[k] = v
|
||||
}
|
||||
|
||||
for name, spec := range features {
|
||||
if existingSpec, found := known[name]; found {
|
||||
if existingSpec == spec {
|
||||
continue
|
||||
}
|
||||
return fmt.Errorf("feature gate %q with different spec already exists: %v", name, existingSpec)
|
||||
}
|
||||
|
||||
known[name] = spec
|
||||
}
|
||||
|
||||
// Persist updated state
|
||||
f.known.Store(known)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Enabled returns true if the key is enabled.
|
||||
func (f *featureGate) Enabled(key Feature) bool {
|
||||
if v, ok := f.enabled.Load().(map[Feature]bool)[key]; ok {
|
||||
return v
|
||||
}
|
||||
return f.known.Load().(map[Feature]FeatureSpec)[key].Default
|
||||
}
|
||||
|
||||
// AddFlag adds a flag for setting global feature gates to the specified FlagSet.
|
||||
func (f *featureGate) AddFlag(fs *pflag.FlagSet) {
|
||||
f.lock.Lock()
|
||||
// TODO(mtaufen): Shouldn't we just close it on the first Set/SetFromMap instead?
|
||||
// Not all components expose a feature gates flag using this AddFlag method, and
|
||||
// in the future, all components will completely stop exposing a feature gates flag,
|
||||
// in favor of componentconfig.
|
||||
f.closed = true
|
||||
f.lock.Unlock()
|
||||
|
||||
known := f.KnownFeatures()
|
||||
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"))
|
||||
}
|
||||
|
||||
// KnownFeatures returns a slice of strings describing the FeatureGate's known features.
|
||||
func (f *featureGate) KnownFeatures() []string {
|
||||
var known []string
|
||||
for k, v := range f.known.Load().(map[Feature]FeatureSpec) {
|
||||
pre := ""
|
||||
if v.PreRelease != 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
|
||||
}
|
||||
|
||||
// DeepCopy returns a deep copy of the FeatureGate object, such that gates can be
|
||||
// set on the copy without mutating the original. This is useful for validating
|
||||
// config against potential feature gate changes before committing those changes.
|
||||
func (f *featureGate) DeepCopy() FeatureGate {
|
||||
// Copy existing state.
|
||||
known := map[Feature]FeatureSpec{}
|
||||
for k, v := range f.known.Load().(map[Feature]FeatureSpec) {
|
||||
known[k] = v
|
||||
}
|
||||
enabled := map[Feature]bool{}
|
||||
for k, v := range f.enabled.Load().(map[Feature]bool) {
|
||||
enabled[k] = v
|
||||
}
|
||||
|
||||
// Store copied state in new atomics.
|
||||
knownValue := &atomic.Value{}
|
||||
knownValue.Store(known)
|
||||
enabledValue := &atomic.Value{}
|
||||
enabledValue.Store(enabled)
|
||||
|
||||
// Construct a new featureGate around the copied state.
|
||||
// Note that specialFeatures is treated as immutable by convention,
|
||||
// and we maintain the value of f.closed across the copy.
|
||||
return &featureGate{
|
||||
special: specialFeatures,
|
||||
known: knownValue,
|
||||
enabled: enabledValue,
|
||||
closed: f.closed,
|
||||
}
|
||||
}
|
Reference in New Issue
Block a user