forked from rook/rook
Steve Leon
236468119e
- The provisioner is a Kubernetes external volume provisioner - It calls the Rook API to create and delete volumes on behalf of Kubernetes - It automatically discover Ceph monitor endpoints - It locates RBD ceph user keys based on the Rook cluster location - It uses the in-tree RBD volume plugin to do the map/unmap - Also modify the documentation to reflect the changes on the storageclass
109 lines
2.7 KiB
Go
109 lines
2.7 KiB
Go
/*
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Copyright 2016 The Rook Authors. All rights reserved.
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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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Some of the code below came from https://github.com/coreos/etcd-operator
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which also has the apache 2.0 license.
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*/
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package k8sutil
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import (
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"encoding/json"
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"fmt"
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"os"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/pkg/api"
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"k8s.io/client-go/pkg/api/v1"
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)
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const (
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AppAttr = "app"
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ClusterAttr = "rook_cluster"
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VersionAttr = "rook_version"
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PodIPEnvVar = "ROOKD_PRIVATE_IPV4"
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DefaultRepoPrefix = "quay.io/rook"
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repoPrefixEnvVar = "ROOKD_REPO_PREFIX"
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defaultVersion = "latest"
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)
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func NamespaceEnvVar() v1.EnvVar {
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return v1.EnvVar{Name: "ROOKD_NAMESPACE", ValueFrom: &v1.EnvVarSource{FieldRef: &v1.ObjectFieldSelector{FieldPath: "metadata.namespace"}}}
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}
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func RepoPrefixEnvVar() v1.EnvVar {
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return v1.EnvVar{Name: repoPrefixEnvVar, Value: repoPrefix()}
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}
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func ConfigDirEnvVar() v1.EnvVar {
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return v1.EnvVar{Name: "ROOKD_CONFIG_DIR", Value: DataDir}
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}
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func repoPrefix() string {
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r := os.Getenv(repoPrefixEnvVar)
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if r == "" {
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r = DefaultRepoPrefix
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}
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return r
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}
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func getVersion(version string) string {
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if version == "" {
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version = defaultVersion
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}
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return version
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}
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func MakeRookImage(version string) string {
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return fmt.Sprintf("%s/rookd:%v", repoPrefix(), getVersion(version))
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}
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func PodWithAntiAffinity(pod *v1.Pod, attribute, value string) {
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// set pod anti-affinity with the pods that belongs to the same rook cluster
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affinity := v1.Affinity{
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PodAntiAffinity: &v1.PodAntiAffinity{
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RequiredDuringSchedulingIgnoredDuringExecution: []v1.PodAffinityTerm{
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{
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LabelSelector: &metav1.LabelSelector{
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MatchLabels: map[string]string{
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attribute: value,
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},
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},
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TopologyKey: "kubernetes.io/hostname",
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},
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},
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},
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}
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affinityb, err := json.Marshal(affinity)
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if err != nil {
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panic("failed to marshal affinty struct")
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}
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pod.Annotations[v1.AffinityAnnotationKey] = string(affinityb)
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}
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func SetPodVersion(pod *v1.Pod, key, version string) {
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pod.Annotations[key] = version
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}
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func GetPodNames(pods []*api.Pod) []string {
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res := []string{}
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for _, p := range pods {
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res = append(res, p.Name)
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}
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return res
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}
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