19d2bbbc98
Some code in kubeadm was designed with the intent, that in the future CoreDNS and kube-dns versions will match to specific K8s versions. This code is not functional, since it does not perform any version matching. As of this moment, no version matching is planned and a lot of boilerplate code is left useless. The solution is simple - remove the unneeded parts to simplify the flow. Signed-off-by: Rostislav M. Georgiev <rostislavg@vmware.com>
69 lines
3.2 KiB
Go
69 lines
3.2 KiB
Go
/*
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Copyright 2016 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 images
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import (
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"fmt"
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"runtime"
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kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
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"k8s.io/kubernetes/cmd/kubeadm/app/constants"
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"k8s.io/kubernetes/cmd/kubeadm/app/features"
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kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
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)
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// GetCoreImage generates and returns the image for the core Kubernetes components or returns overrideImage if specified
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func GetCoreImage(image, repoPrefix, k8sVersion, overrideImage string) string {
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if overrideImage != "" {
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return overrideImage
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}
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kubernetesImageTag := kubeadmutil.KubernetesVersionToImageTag(k8sVersion)
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etcdImageTag := constants.DefaultEtcdVersion
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etcdImageVersion, err := constants.EtcdSupportedVersion(k8sVersion)
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if err == nil {
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etcdImageTag = etcdImageVersion.String()
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}
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return map[string]string{
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constants.Etcd: fmt.Sprintf("%s/%s-%s:%s", repoPrefix, "etcd", runtime.GOARCH, etcdImageTag),
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constants.KubeAPIServer: fmt.Sprintf("%s/%s-%s:%s", repoPrefix, "kube-apiserver", runtime.GOARCH, kubernetesImageTag),
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constants.KubeControllerManager: fmt.Sprintf("%s/%s-%s:%s", repoPrefix, "kube-controller-manager", runtime.GOARCH, kubernetesImageTag),
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constants.KubeScheduler: fmt.Sprintf("%s/%s-%s:%s", repoPrefix, "kube-scheduler", runtime.GOARCH, kubernetesImageTag),
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}[image]
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}
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// GetAllImages returns a list of container images kubeadm expects to use on a control plane node
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func GetAllImages(cfg *kubeadmapi.MasterConfiguration) []string {
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imgs := []string{}
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imgs = append(imgs, GetCoreImage(constants.KubeAPIServer, cfg.ImageRepository, cfg.KubernetesVersion, cfg.UnifiedControlPlaneImage))
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imgs = append(imgs, GetCoreImage(constants.KubeControllerManager, cfg.ImageRepository, cfg.KubernetesVersion, cfg.UnifiedControlPlaneImage))
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imgs = append(imgs, GetCoreImage(constants.KubeScheduler, cfg.ImageRepository, cfg.KubernetesVersion, cfg.UnifiedControlPlaneImage))
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imgs = append(imgs, fmt.Sprintf("%v/%v-%v:%v", cfg.ImageRepository, constants.KubeProxy, runtime.GOARCH, kubeadmutil.KubernetesVersionToImageTag(cfg.KubernetesVersion)))
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imgs = append(imgs, fmt.Sprintf("%v/pause-%v:%v", cfg.ImageRepository, runtime.GOARCH, "3.1"))
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// if etcd is not external then add the image as it will be required
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if cfg.Etcd.Local != nil {
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imgs = append(imgs, GetCoreImage(constants.Etcd, cfg.ImageRepository, cfg.KubernetesVersion, cfg.Etcd.Local.Image))
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}
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dnsImage := fmt.Sprintf("%v/k8s-dns-kube-dns-%v:%v", cfg.ImageRepository, runtime.GOARCH, constants.KubeDNSVersion)
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if features.Enabled(cfg.FeatureGates, features.CoreDNS) {
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dnsImage = fmt.Sprintf("coredns/coredns:%v", constants.CoreDNSVersion)
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}
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imgs = append(imgs, dnsImage)
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return imgs
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}
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