prometheus/web/api/targets.go
Julius Volz f1fc7d717a Allow replacing job targets via HTTP API.
This roughly comprises the following changes:

- index target pools by job instead of scrape interval
- make targets within a pool exchangable while preserving existing
  health state for targets
- allow exchanging targets via HTTP API (PUT)
- show target lists in /status (experimental, for own debug use)
2013-02-28 21:33:29 +01:00

49 lines
1.6 KiB
Go

// Copyright 2013 Prometheus Team
// 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 api
import (
"github.com/prometheus/prometheus/model"
"github.com/prometheus/prometheus/retrieval"
"net/http"
"time"
)
type TargetGroup struct {
Endpoints []string `json:"endpoints"`
BaseLabels map[string]string `json:"baseLabels"`
}
func (serv MetricsService) SetTargets(targetGroups []TargetGroup, jobName string) {
if job := serv.appState.Config.GetJobByName(jobName); job == nil {
rb := serv.ResponseBuilder()
rb.SetResponseCode(http.StatusNotFound)
} else {
newTargets := []retrieval.Target{}
for _, targetGroup := range targetGroups {
// Do mandatory map type conversion due to Go shortcomings.
baseLabels := model.LabelSet{}
for label, value := range targetGroup.BaseLabels {
baseLabels[model.LabelName(label)] = model.LabelValue(value)
}
for _, endpoint := range targetGroup.Endpoints {
newTarget := retrieval.NewTarget(endpoint, time.Second*5, baseLabels)
newTargets = append(newTargets, newTarget)
}
}
serv.appState.TargetManager.ReplaceTargets(job, newTargets, serv.appState.Config.Global.ScrapeInterval)
}
}