sigs.k8s.io/cluster-api@v1.6.3/internal/util/kubeadm/kubeadm.go (about) 1 /* 2 Copyright 2021 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 kubeadm contains utils related to kubeadm. 18 package kubeadm 19 20 import "github.com/blang/semver/v4" 21 22 const ( 23 // DefaultImageRepository is the new default Kubernetes image registry. 24 DefaultImageRepository = "registry.k8s.io" 25 // OldDefaultImageRepository is the old default Kubernetes image registry. 26 OldDefaultImageRepository = "k8s.gcr.io" 27 ) 28 29 var ( 30 // MinKubernetesVersionImageRegistryMigration is the first Kubernetes minor version which 31 // has patch versions where the default image registry in kubeadm is registry.k8s.io instead of k8s.gcr.io. 32 MinKubernetesVersionImageRegistryMigration = semver.MustParse("1.22.0") 33 34 // NextKubernetesVersionImageRegistryMigration is the next minor version after 35 // the default image registry in kubeadm changed to registry.k8s.io. 36 NextKubernetesVersionImageRegistryMigration = semver.MustParse("1.26.0") 37 ) 38 39 // GetDefaultRegistry returns the default registry of the given kubeadm version. 40 func GetDefaultRegistry(version semver.Version) string { 41 // If version <= v1.22.16 return k8s.gcr.io 42 if version.LTE(semver.MustParse("1.22.16")) { 43 return OldDefaultImageRepository 44 } 45 46 // If v1.22.17 <= version < v1.23.0 return registry.k8s.io 47 if version.GTE(semver.MustParse("1.22.17")) && 48 version.LT(semver.MustParse("1.23.0")) { 49 return DefaultImageRepository 50 } 51 52 // If v1.23.0 <= version <= v1.23.14 return k8s.gcr.io 53 if version.GTE(semver.MustParse("1.23.0")) && 54 version.LTE(semver.MustParse("1.23.14")) { 55 return OldDefaultImageRepository 56 } 57 58 // If v1.23.15 <= version < v1.24.0 return registry.k8s.io 59 if version.GTE(semver.MustParse("1.23.15")) && 60 version.LT(semver.MustParse("1.24.0")) { 61 return DefaultImageRepository 62 } 63 64 // If v1.24.0 <= version <= v1.24.8 return k8s.gcr.io 65 if version.GTE(semver.MustParse("1.24.0")) && 66 version.LTE(semver.MustParse("1.24.8")) { 67 return OldDefaultImageRepository 68 } 69 70 // If v1.24.9 <= version return registry.k8s.io 71 return DefaultImageRepository 72 }