| /* |
| 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 |
| |
| import ( |
| "fmt" |
| ) |
| |
| const ( |
| // AlphaFeatureNetworkTiers allows Services backed by a GCP load balancer to choose |
| // what network tier to use. Currently supports "Standard" and "Premium" (default). |
| // |
| // alpha: v1.8 (for Services) |
| AlphaFeatureNetworkTiers = "NetworkTiers" |
| ) |
| |
| // 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 { |
| 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} |
| } |
| |
| func (g *Cloud) alphaFeatureEnabled(feature string) error { |
| if !g.AlphaFeatureGate.Enabled(feature) { |
| return fmt.Errorf("alpha feature %q is not enabled", feature) |
| } |
| return nil |
| } |