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/
driver.go
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/
driver.go
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// Copyright 2017 Google Inc. 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 honeycomb
import (
"net/url"
"sync"
"github.com/golang/glog"
kube_api "k8s.io/client-go/pkg/api/v1"
honeycomb_common "k8s.io/heapster/common/honeycomb"
event_core "k8s.io/heapster/events/core"
)
type honeycombSink struct {
client honeycomb_common.Client
sync.Mutex
}
type exportedData struct {
Namespace string `json:"namespace"`
Kind string `json:"kind"`
Name string `json:"name"`
SubObject string `json:"subobject"`
SourceComponent string `json:"source.component"`
SourceHost string `json:"source.host"`
Count int32 `json:"count"`
Type string `json:"type"`
Reason string `json:"reason"`
Message string `json:"message"`
}
func getExportedData(e *kube_api.Event) *exportedData {
return &exportedData{
Namespace: e.InvolvedObject.Namespace,
Kind: e.InvolvedObject.Kind,
Name: e.InvolvedObject.Name,
SubObject: e.InvolvedObject.FieldPath,
SourceComponent: e.Source.Component,
SourceHost: e.Source.Host,
Count: e.Count,
Reason: e.Reason,
Type: e.Type,
Message: e.Message,
}
}
func (sink *honeycombSink) ExportEvents(eventBatch *event_core.EventBatch) {
sink.Lock()
defer sink.Unlock()
exportedBatch := make(honeycomb_common.Batch, len(eventBatch.Events))
for i, event := range eventBatch.Events {
data := getExportedData(event)
exportedBatch[i] = &honeycomb_common.BatchPoint{
Data: data,
Timestamp: event.LastTimestamp.UTC(),
}
}
err := sink.client.SendBatch(exportedBatch)
if err != nil {
glog.Warningf("Failed to send event: %v", err)
return
}
}
func (sink *honeycombSink) Stop() {}
func (sink *honeycombSink) Name() string {
return "Honeycomb Sink"
}
func NewHoneycombSink(uri *url.URL) (event_core.EventSink, error) {
client, err := honeycomb_common.NewClient(uri)
if err != nil {
return nil, err
}
sink := &honeycombSink{
client: client,
}
return sink, nil
}