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debug: log operator actions to hostPath volume
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| // Copyright 2017 The etcd-operator Authors | ||
| // | ||
| // 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 debug | ||
|
|
||
| import ( | ||
| "os" | ||
| "path" | ||
|
|
||
| "github.com/coreos/etcd-operator/pkg/util/constants" | ||
| "github.com/coreos/etcd-operator/pkg/util/k8sutil" | ||
|
|
||
| "github.com/Sirupsen/logrus" | ||
| "k8s.io/client-go/pkg/api/v1" | ||
| ) | ||
|
|
||
| var ( | ||
| // This flag should be set to enable debug logging | ||
| DebugEnabled bool | ||
| ) | ||
|
|
||
| type DebugLogger struct { | ||
| // regular log to stdout | ||
| logger *logrus.Entry | ||
| // log to file for debugging self hosted clusters | ||
| fileLogger *logrus.Logger | ||
| } | ||
|
|
||
| func New(clusterName string) *DebugLogger { | ||
| if !DebugEnabled { | ||
| return nil | ||
| } | ||
|
|
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| logger := logrus.WithField("pkg", "debug") | ||
|
|
||
| mountPath := path.Join(constants.OperatorRoot, "debug") | ||
| _, err := os.Stat(mountPath) | ||
| if os.IsNotExist(err) { | ||
| logger.Errorf("No volumed mounted at mountPath(%v): debug logging will not be performed: %v", mountPath, err) | ||
| return nil | ||
| } | ||
| logger.Infof("detected the mountPath(%v): starting debug logging of operator actions to the mountPath", mountPath) | ||
|
|
||
| filePath := path.Join(mountPath, clusterName+".log") | ||
| logFile, err := os.OpenFile(filePath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666) | ||
| if err != nil { | ||
| logger.Errorf("failed to open logfile(%v): %v", filePath, err) | ||
| return nil | ||
| } | ||
|
|
||
| l := logrus.New() | ||
| l.Out = logFile | ||
| l.Infof("Starting debug logs for self-hosted etcd cluster: %v", clusterName) | ||
| return &DebugLogger{ | ||
| logger: logrus.WithField("pkg", "debug"), | ||
| fileLogger: l, | ||
| } | ||
| } | ||
|
|
||
| func (dl *DebugLogger) LogPodCreation(pod *v1.Pod, podCreationErr error) { | ||
| if podCreationErr != nil { | ||
| dl.fileLogger.Infof("failed to create pod (%s): %v ", pod.Name, podCreationErr) | ||
| return | ||
| } | ||
| dl.fileLogger.Infof("created pod (%s)", pod.Name) | ||
| } | ||
|
|
||
| func (dl *DebugLogger) LogPodDeletion(podName string, podDeletionErr error) { | ||
| if podDeletionErr != nil { | ||
| if !k8sutil.IsKubernetesResourceNotFoundError(podDeletionErr) { | ||
| dl.fileLogger.Infof("failed to delete pod (%s): %v ", podName, podDeletionErr) | ||
| return | ||
| } | ||
| dl.fileLogger.Infof("pod (%s) not found while trying to delete: %v ", podName, podDeletionErr) | ||
| return | ||
| } | ||
| dl.fileLogger.Infof("deleted pod (%s)", podName) | ||
| } | ||
|
|
||
| func (dl *DebugLogger) LogClusterSpecUpdate(oldSpec, newSpec string) { | ||
| dl.fileLogger.Infof("spec update: \nOld:\n%v \nNew:\n%v\n", oldSpec, newSpec) | ||
| } | ||
|
|
||
| func (dl *DebugLogger) LogMessage(msg string) { | ||
| dl.fileLogger.Infof(msg) | ||
| } |