cloudprovider.go

Documentation: k8s.io/kubernetes/pkg/kubeapiserver/options

     1  /*
     2  Copyright 2017 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package options
    18  
    19  import (
    20  	"fmt"
    21  
    22  	"github.com/spf13/pflag"
    23  	utilfeature "k8s.io/apiserver/pkg/util/feature"
    24  	cloudprovider "k8s.io/cloud-provider"
    25  	"k8s.io/kubernetes/pkg/features"
    26  )
    27  
    28  // CloudProviderOptions contains cloud provider config
    29  type CloudProviderOptions struct {
    30  	CloudConfigFile string
    31  	CloudProvider   string
    32  }
    33  
    34  // NewCloudProviderOptions creates a default CloudProviderOptions
    35  func NewCloudProviderOptions() *CloudProviderOptions {
    36  	return &CloudProviderOptions{}
    37  }
    38  
    39  // Validate checks invalid config
    40  func (opts *CloudProviderOptions) Validate() []error {
    41  	var errs []error
    42  
    43  	switch {
    44  	case opts.CloudProvider == "":
    45  	case opts.CloudProvider == "external":
    46  		if !utilfeature.DefaultFeatureGate.Enabled(features.DisableCloudProviders) {
    47  			errs = append(errs, fmt.Errorf("when using --cloud-provider set to '%s', "+
    48  				"please set DisableCloudProviders feature to true", opts.CloudProvider))
    49  		}
    50  		if !utilfeature.DefaultFeatureGate.Enabled(features.DisableKubeletCloudCredentialProviders) {
    51  			errs = append(errs, fmt.Errorf("when using --cloud-provider set to '%s', "+
    52  				"please set DisableKubeletCloudCredentialProviders feature to true", opts.CloudProvider))
    53  		}
    54  	case cloudprovider.IsDeprecatedInternal(opts.CloudProvider):
    55  		if utilfeature.DefaultFeatureGate.Enabled(features.DisableCloudProviders) {
    56  			errs = append(errs, fmt.Errorf("when using --cloud-provider set to '%s', "+
    57  				"please set DisableCloudProviders feature to false", opts.CloudProvider))
    58  		}
    59  		if utilfeature.DefaultFeatureGate.Enabled(features.DisableKubeletCloudCredentialProviders) {
    60  			errs = append(errs, fmt.Errorf("when using --cloud-provider set to '%s', "+
    61  				"please set DisableKubeletCloudCredentialProviders feature to false", opts.CloudProvider))
    62  		}
    63  	default:
    64  		errs = append(errs, fmt.Errorf("unknown --cloud-provider: %s", opts.CloudProvider))
    65  	}
    66  
    67  	return errs
    68  }
    69  
    70  // AddFlags returns flags of cloud provider for a API Server
    71  func (s *CloudProviderOptions) AddFlags(fs *pflag.FlagSet) {
    72  	fs.StringVar(&s.CloudProvider, "cloud-provider", s.CloudProvider,
    73  		"The provider for cloud services. Empty string for no provider.")
    74  	fs.MarkDeprecated("cloud-provider", "will be removed in a future version") // nolint: errcheck
    75  	fs.StringVar(&s.CloudConfigFile, "cloud-config", s.CloudConfigFile,
    76  		"The path to the cloud provider configuration file. Empty string for no configuration file.")
    77  	fs.MarkDeprecated("cloud-config", "will be removed in a future version") // nolint: errcheck
    78  }
    79
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