forked from rook/rook
Sébastien Han
b89730d895
This commit is a large refactor on how the operator starts, stops and how it starts various sub-components such as the ceph-csi driver. It also refines the way we cancel orchestrations. We don't use breakpoints anymore but send our self a SIGUP to reload our controller runtime manager. The reload will happen under different circonstances like: * a new adminission controller secret is created/deleted/changed * a CephCluster CR is edited As mentioned earlier, the csi driver now has its own controller, just like flex. It reacts to change in the operator config map for particular ROOK_CSI_ fields. A second new controller for the operator's general config has been created, it manages: * the logging level * the ceph CLI command timeout * the discovery daemon The operator reacts much more rapidly to cancellation events by stopping the manager's context and reloading it. Signed-off-by: Sébastien Han <seb@redhat.com>
76 lines
2.7 KiB
Go
76 lines
2.7 KiB
Go
/*
|
|
Copyright 2019 The Rook Authors. All rights reserved.
|
|
|
|
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 k8sutil
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"time"
|
|
|
|
apierrors "k8s.io/apimachinery/pkg/api/errors"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/client-go/kubernetes"
|
|
)
|
|
|
|
// DeleteConfigMap deletes a ConfigMap.
|
|
func DeleteConfigMap(clientset kubernetes.Interface, cmName, namespace string, opts *DeleteOptions) error {
|
|
ctx := context.TODO()
|
|
k8sOpts := BaseKubernetesDeleteOptions()
|
|
delete := func() error { return clientset.CoreV1().ConfigMaps(namespace).Delete(ctx, cmName, *k8sOpts) }
|
|
verify := func() error {
|
|
_, err := clientset.CoreV1().ConfigMaps(namespace).Get(ctx, cmName, metav1.GetOptions{})
|
|
return err
|
|
}
|
|
resource := fmt.Sprintf("ConfigMap %s", cmName)
|
|
defaultWaitOptions := &WaitOptions{RetryCount: 20, RetryInterval: 2 * time.Second}
|
|
return DeleteResource(delete, verify, resource, opts, defaultWaitOptions)
|
|
}
|
|
|
|
// GetOperatorSetting gets the operator setting from ConfigMap or Env Var
|
|
// returns defaultValue if setting is not found
|
|
func GetOperatorSetting(context context.Context, clientset kubernetes.Interface, configMapName, settingName, defaultValue string) (string, error) {
|
|
// config must be in operator pod namespace
|
|
namespace := os.Getenv(PodNamespaceEnvVar)
|
|
cm, err := clientset.CoreV1().ConfigMaps(namespace).Get(context, configMapName, metav1.GetOptions{})
|
|
if err != nil {
|
|
if apierrors.IsNotFound(err) {
|
|
if settingValue, ok := os.LookupEnv(settingName); ok {
|
|
logger.Infof("%s=%q (env var)", settingName, settingValue)
|
|
return settingValue, nil
|
|
}
|
|
logger.Infof("%s=%q (default)", settingName, defaultValue)
|
|
return defaultValue, nil
|
|
}
|
|
return defaultValue, fmt.Errorf("error reading ConfigMap %q. %v", configMapName, err)
|
|
}
|
|
|
|
return GetValue(cm.Data, settingName, defaultValue), nil
|
|
}
|
|
|
|
func GetValue(data map[string]string, settingName, defaultValue string) string {
|
|
if settingValue, ok := data[settingName]; ok {
|
|
logger.Infof("%s=%q (configmap)", settingName, settingValue)
|
|
return settingValue
|
|
} else if settingValue, ok := os.LookupEnv(settingName); ok {
|
|
logger.Infof("%s=%q (env var)", settingName, settingValue)
|
|
return settingValue
|
|
}
|
|
logger.Infof("%s=%q (default)", settingName, defaultValue)
|
|
return defaultValue
|
|
}
|