k8c.io/api/v3@v3.0.0-20230904060738-b0a93889c0b6/pkg/apis/kubermatic/v1/helper/ipv6.go (about)

     1  /*
     2  Copyright 2023 The Kubermatic Kubernetes Platform contributors.
     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 helper
    18  
    19  import (
    20  	kubermaticv1 "k8c.io/api/v3/pkg/apis/kubermatic/v1"
    21  )
    22  
    23  var (
    24  	// knownIPv6CloudProviders configures which providers have IPv6 and if it's enabled for all datacenters.
    25  	knownIPv6CloudProviders = map[kubermaticv1.CloudProvider]struct {
    26  		ipv6EnabledForAllDatacenters bool
    27  	}{
    28  		kubermaticv1.CloudProviderAWS: {
    29  			ipv6EnabledForAllDatacenters: true,
    30  		},
    31  		kubermaticv1.CloudProviderAzure: {
    32  			ipv6EnabledForAllDatacenters: true,
    33  		},
    34  		kubermaticv1.CloudProviderBringYourOwn: {
    35  			ipv6EnabledForAllDatacenters: true,
    36  		},
    37  		kubermaticv1.CloudProviderDigitalocean: {
    38  			ipv6EnabledForAllDatacenters: true,
    39  		},
    40  		kubermaticv1.CloudProviderGCP: {
    41  			ipv6EnabledForAllDatacenters: true,
    42  		},
    43  		kubermaticv1.CloudProviderHetzner: {
    44  			ipv6EnabledForAllDatacenters: true,
    45  		},
    46  		kubermaticv1.CloudProviderOpenStack: {
    47  			ipv6EnabledForAllDatacenters: false,
    48  		},
    49  		kubermaticv1.CloudProviderPacket: {
    50  			ipv6EnabledForAllDatacenters: true,
    51  		},
    52  		kubermaticv1.CloudProviderVSphere: {
    53  			ipv6EnabledForAllDatacenters: false,
    54  		},
    55  	}
    56  )
    57  
    58  func IsIPv6KnownProvider(provider kubermaticv1.CloudProvider) bool {
    59  	_, isIPv6KnownProvider := knownIPv6CloudProviders[provider]
    60  	return isIPv6KnownProvider
    61  }
    62  
    63  // IsIPv6EnabledDatacenter returns true if IPv6 is enabled for the datacenter.
    64  func IsIPv6EnabledDatacenter(dc *kubermaticv1.Datacenter) bool {
    65  	provider, err := DatacenterCloudProviderName(&dc.Spec.Provider)
    66  	if err != nil {
    67  		return false
    68  	}
    69  
    70  	cloudProviderCfg, exists := knownIPv6CloudProviders[provider]
    71  	if !exists {
    72  		return false
    73  	}
    74  
    75  	if cloudProviderCfg.ipv6EnabledForAllDatacenters {
    76  		return true
    77  	}
    78  
    79  	var flag *bool
    80  
    81  	switch provider {
    82  	case kubermaticv1.CloudProviderOpenStack:
    83  		flag = dc.Spec.Provider.OpenStack.IPv6Enabled
    84  	case kubermaticv1.CloudProviderVSphere:
    85  		flag = dc.Spec.Provider.VSphere.IPv6Enabled
    86  	}
    87  
    88  	return flag != nil && *flag
    89  }