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monitor.go
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monitor.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. 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
*
* https://opensource.org/licenses/Apache-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 OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package app
import (
"net/http"
"time"
"k8s.io/apimachinery/pkg/runtime/schema"
v1 "tkestack.io/tke/api/monitor/v1"
"tkestack.io/tke/pkg/monitor/controller/metric"
"tkestack.io/tke/pkg/monitor/controller/prometheus"
"tkestack.io/tke/pkg/monitor/storage"
"tkestack.io/tke/pkg/util/log"
)
const (
promEventSyncPeriod = 5 * time.Minute
concurrentPromSyncs = 10
)
func startMetricController(ctx ControllerContext) (http.Handler, bool, error) {
if ctx.BusinessClient == nil {
return nil, false, nil
}
if !ctx.AvailableResources[schema.GroupVersionResource{Group: v1.GroupName, Version: v1.Version, Resource: "metrics"}] {
return nil, false, nil
}
projectStorage, err := storage.NewProjectStorage(&ctx.MonitorConfig.Storage, ctx.BusinessClient)
if err != nil {
log.Error("Failed to create project storage", log.Err(err))
return nil, false, err
}
ctrl := metric.NewController(projectStorage)
go ctrl.Run(ctx.Stop)
return nil, true, nil
}
func startPrometheusController(ctx ControllerContext) (http.Handler, bool, error) {
if ctx.RemoteType == "" || len(ctx.RemoteAddresses) == 0 {
log.Errorf("wrong remote type or address %v %v", ctx.RemoteType, ctx.RemoteAddresses)
return nil, false, nil
}
if !ctx.AvailableResources[schema.GroupVersionResource{Group: v1.GroupName, Version: "v1", Resource: "prometheuses"}] {
log.Errorf("no prometheus in AvailableResources %v", ctx.AvailableResources)
return nil, false, nil
}
var retentionDays int = -1 //retentionDays is used in controller only when storage is influx db
if ctx.MonitorConfig.Storage.InfluxDB != nil {
retentionDays = *ctx.MonitorConfig.Storage.InfluxDB.RetentionDays
}
ctrl := prometheus.NewController(
ctx.ClientBuilder.ClientOrDie("prometheus-controller"),
ctx.PlatformClient,
ctx.InformerFactory.Monitor().V1().Prometheuses(),
promEventSyncPeriod,
ctx.RemoteAddresses,
ctx.RemoteType,
retentionDays,
)
go func() {
_ = ctrl.Run(concurrentPromSyncs, ctx.Stop)
}()
return nil, true, nil
}