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64 lines
2.4 KiB
Go
64 lines
2.4 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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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
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limitations under the License.
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*/
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package app
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import (
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"fmt"
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"k8s.io/klog"
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"k8s.io/client-go/informers"
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cloudprovider "k8s.io/cloud-provider"
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)
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// createCloudProvider helps consolidate what is needed for cloud providers, we explicitly list the things
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// that the cloud providers need as parameters, so we can control
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func createCloudProvider(cloudProvider string, externalCloudVolumePlugin string, cloudConfigFile string,
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allowUntaggedCloud bool, sharedInformers informers.SharedInformerFactory) (cloudprovider.Interface, ControllerLoopMode, error) {
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var cloud cloudprovider.Interface
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var loopMode ControllerLoopMode
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var err error
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if cloudprovider.IsExternal(cloudProvider) {
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loopMode = ExternalLoops
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if externalCloudVolumePlugin == "" {
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// externalCloudVolumePlugin is temporary until we split all cloud providers out.
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// So we just tell the caller that we need to run ExternalLoops without any cloud provider.
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return nil, loopMode, nil
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}
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cloud, err = cloudprovider.InitCloudProvider(externalCloudVolumePlugin, cloudConfigFile)
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} else {
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loopMode = IncludeCloudLoops
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cloud, err = cloudprovider.InitCloudProvider(cloudProvider, cloudConfigFile)
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}
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if err != nil {
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return nil, loopMode, fmt.Errorf("cloud provider could not be initialized: %v", err)
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}
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if cloud != nil && !cloud.HasClusterID() {
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if allowUntaggedCloud {
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klog.Warning("detected a cluster without a ClusterID. A ClusterID will be required in the future. Please tag your cluster to avoid any future issues")
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} else {
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return nil, loopMode, fmt.Errorf("no ClusterID Found. A ClusterID is required for the cloud provider to function properly. This check can be bypassed by setting the allow-untagged-cloud option")
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}
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}
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if informerUserCloud, ok := cloud.(cloudprovider.InformerUser); ok {
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informerUserCloud.SetInformers(sharedInformers)
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}
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return cloud, loopMode, err
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}
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