kubernetes gce_alpha 源码

  • 2022-09-18
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kubernetes gce_alpha 代码

文件路径:/staging/src/k8s.io/legacy-cloud-providers/gce/gce_alpha.go

//go:build !providerless
// +build !providerless

/*
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 gce

const (
	// AlphaFeatureILBSubsets allows InternalLoadBalancer services to include a subset
	// of cluster nodes as backends instead of all nodes.
	AlphaFeatureILBSubsets = "ILBSubsets"

	// AlphaFeatureSkipIGsManagement enabled L4 Regional Backend Services and
	// disables instance group management in service controller
	AlphaFeatureSkipIGsManagement = "SkipIGsManagement"
)

// AlphaFeatureGate contains a mapping of alpha features to whether they are enabled
type AlphaFeatureGate struct {
	features map[string]bool
}

// Enabled returns true if the provided alpha feature is enabled
func (af *AlphaFeatureGate) Enabled(key string) bool {
	if af == nil || af.features == nil {
		return false
	}
	return af.features[key]
}

// NewAlphaFeatureGate marks the provided alpha features as enabled
func NewAlphaFeatureGate(features []string) *AlphaFeatureGate {
	featureMap := make(map[string]bool)
	for _, name := range features {
		featureMap[name] = true
	}
	return &AlphaFeatureGate{featureMap}
}

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