forked from rook/rook
71 lines
2.1 KiB
Go
71 lines
2.1 KiB
Go
/*
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Copyright 2020 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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*/
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package k8sutil
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import (
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"os"
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"strings"
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corev1 "k8s.io/api/core/v1"
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)
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// ParseStringToLabels parse a label selector string into a map[string]string
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func ParseStringToLabels(in string) map[string]string {
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labels := map[string]string{}
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if in == "" {
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return labels
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}
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for _, v := range strings.Split(in, ",") {
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labelSplit := strings.Split(v, "=")
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// When a value is set for a label k/v pair
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if len(labelSplit) > 2 {
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logger.Warningf("more than one value found for a label %q, only the first value will be used", labelSplit[0])
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}
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if len(labelSplit) > 1 {
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labels[labelSplit[0]] = labelSplit[1]
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} else {
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labels[labelSplit[0]] = ""
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}
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}
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return labels
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}
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// AddRecommendedLabels adds the labels to the resources created by rook
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// The labels added are name, instance,etc
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func AddRecommendedLabels(labels map[string]string, appName, parentName, resourceKind, resourceInstance string) {
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labels["app.kubernetes.io/name"] = appName
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labels["app.kubernetes.io/instance"] = resourceInstance
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labels["app.kubernetes.io/component"] = resourceKind
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labels["app.kubernetes.io/part-of"] = parentName
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labels["app.kubernetes.io/managed-by"] = "rook-ceph-operator"
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labels["app.kubernetes.io/created-by"] = "rook-ceph-operator"
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labels["rook.io/operator-namespace"] = os.Getenv(PodNamespaceEnvVar)
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}
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// LabelHostname returns label name to identify k8s node hostname
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func LabelHostname() string {
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if label := os.Getenv("ROOK_CUSTOM_HOSTNAME_LABEL"); label != "" {
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return label
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}
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return corev1.LabelHostname
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}
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