58 lines
2.0 KiB
Go
58 lines
2.0 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 dns
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import (
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kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
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"k8s.io/kubernetes/pkg/util/version"
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)
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const (
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kubeDNSVersion = "1.14.10"
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coreDNSVersion = "1.1.3"
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)
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// GetDNSVersion returns the right kube-dns version for a specific k8s version
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func GetDNSVersion(kubeVersion *version.Version, dns string) string {
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// v1.9.0+ uses kube-dns 1.14.10, if feature gate "CoreDNS" is disabled.
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// v1.9.0+ uses CoreDNS 1.1.3.
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// In the future when the version is bumped at HEAD; add conditional logic to return the right versions
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// Also, the version might be bumped for different k8s releases on the same branch
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switch dns {
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case kubeadmconstants.CoreDNS:
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// return the CoreDNS version
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return coreDNSVersion
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default:
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return kubeDNSVersion
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}
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}
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// GetKubeDNSManifest returns the right kube-dns YAML manifest for a specific k8s version
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func GetKubeDNSManifest(kubeVersion *version.Version) string {
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// v1.8.0+ has only one known YAML manifest spec, just return that here
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// In the future when the kube-dns version is bumped at HEAD; add conditional logic to return the right manifest
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return KubeDNSDeployment
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}
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// GetCoreDNSManifest returns the right CoreDNS YAML manifest for a specific k8s version
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func GetCoreDNSManifest(kubeVersion *version.Version) string {
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// v1.9.0+ has only one known YAML manifest spec, just return that here
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// In the future when the CoreDNS version is bumped at HEAD; add conditional logic to return the right manifest
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return CoreDNSDeployment
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}
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