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labels.go
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labels.go
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// Copyright 2022 Camunda Services GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package internal
import (
"context"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
)
func getSelfManagedZeebeStatefulSetLabels() string {
labelSelector := metav1.LabelSelector{
MatchLabels: map[string]string{
"app.kubernetes.io/component": "zeebe-broker",
"app.kubernetes.io/name": "camunda-platform",
},
}
return labels.Set(labelSelector.MatchLabels).String()
}
func (c K8Client) getBrokerLabels() string {
if c.SaaSEnv {
return getSaasBrokerLabels()
} else {
return getSelfManagedBrokerLabels()
}
}
func getSelfManagedBrokerLabels() string {
labelSelector := metav1.LabelSelector{
MatchLabels: map[string]string{"app.kubernetes.io/component": "zeebe-broker"},
}
return labels.Set(labelSelector.MatchLabels).String()
}
func getSaasBrokerLabels() string {
// For backwards compatability the brokers kept the gateway labels, for a statefulset the labels are not modifiable
// To still be able to distinguish the standalone gateway with the broker, the gateway got a new label.
labelSelector := metav1.LabelSelector{
MatchLabels: map[string]string{"app.kubernetes.io/app": "zeebe", "app.kubernetes.io/component": "gateway"},
}
return labels.Set(labelSelector.MatchLabels).String()
}
func getSelfManagedGatewayLabels() string {
labelSelector := metav1.LabelSelector{
MatchLabels: map[string]string{"app.kubernetes.io/component": "zeebe-gateway"},
}
return labels.Set(labelSelector.MatchLabels).String()
}
func getSaasGatewayLabels() string {
// For backwards compatability the brokers kept the gateway labels, for a statefulset the labels are not modifiable
// To still be able to distinguish the standalone gateway with the broker, the gateway got a new label.
labelSelector := metav1.LabelSelector{
MatchLabels: map[string]string{"app.kubernetes.io/app": "zeebe-gateway", "app.kubernetes.io/component": "standalone-gateway"},
}
return labels.Set(labelSelector.MatchLabels).String()
}
func (c K8Client) getGatewayLabels() string {
if c.SaaSEnv {
return getSaasGatewayLabels()
} else {
return getSelfManagedGatewayLabels()
}
}
func (c K8Client) getWorkerLabels() string {
labelSelector := metav1.LabelSelector{
MatchLabels: map[string]string{"app": "worker"},
}
return labels.Set(labelSelector.MatchLabels).String()
}
func (c K8Client) disableSaaSNamespaceSecurityLabel() error {
ns, err := c.Clientset.CoreV1().Namespaces().Get(context.TODO(), c.GetCurrentNamespace(), metav1.GetOptions{})
if err != nil {
return err
}
LogVerbose("Removing namespace label: 'pod-security.kubernetes.io/enforce' to allow further privileges.")
delete(ns.Labels, "pod-security.kubernetes.io/enforce")
_, err = c.Clientset.CoreV1().Namespaces().Update(context.TODO(), ns, metav1.UpdateOptions{})
return err
}