mirror of
https://github.com/prometheus/prometheus
synced 2024-12-26 08:33:06 +00:00
ea54751431
This repository moved from matttproud/prometheus to prometheus/prometheus, and all import paths need to be updated.
94 lines
2.4 KiB
Go
94 lines
2.4 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 retrieval
|
|
|
|
import (
|
|
"container/heap"
|
|
"github.com/prometheus/prometheus/config"
|
|
"github.com/prometheus/prometheus/model"
|
|
"github.com/prometheus/prometheus/retrieval/format"
|
|
"log"
|
|
"time"
|
|
)
|
|
|
|
type TargetManager interface {
|
|
acquire()
|
|
release()
|
|
Add(t Target)
|
|
Remove(t Target)
|
|
AddTargetsFromConfig(config *config.Config)
|
|
}
|
|
|
|
type targetManager struct {
|
|
requestAllowance chan bool
|
|
pools map[time.Duration]*TargetPool
|
|
results chan format.Result
|
|
}
|
|
|
|
func NewTargetManager(results chan format.Result, requestAllowance int) TargetManager {
|
|
return &targetManager{
|
|
requestAllowance: make(chan bool, requestAllowance),
|
|
results: results,
|
|
pools: make(map[time.Duration]*TargetPool),
|
|
}
|
|
}
|
|
|
|
func (m *targetManager) acquire() {
|
|
m.requestAllowance <- true
|
|
}
|
|
|
|
func (m *targetManager) release() {
|
|
<-m.requestAllowance
|
|
}
|
|
|
|
func (m *targetManager) Add(t Target) {
|
|
targetPool, ok := m.pools[t.Interval()]
|
|
|
|
if !ok {
|
|
targetPool = NewTargetPool(m)
|
|
log.Printf("Pool %s does not exist; creating and starting...", t.Interval())
|
|
go targetPool.Run(m.results, t.Interval())
|
|
}
|
|
|
|
heap.Push(targetPool, t)
|
|
m.pools[t.Interval()] = targetPool
|
|
}
|
|
|
|
func (m targetManager) Remove(t Target) {
|
|
panic("not implemented")
|
|
}
|
|
|
|
func (m *targetManager) AddTargetsFromConfig(config *config.Config) {
|
|
for _, job := range config.Jobs {
|
|
for _, configTargets := range job.Targets {
|
|
baseLabels := model.LabelSet{
|
|
model.LabelName("job"): model.LabelValue(job.Name),
|
|
}
|
|
for label, value := range configTargets.Labels {
|
|
baseLabels[label] = value
|
|
}
|
|
|
|
interval := job.ScrapeInterval
|
|
if interval == 0 {
|
|
interval = config.Global.ScrapeInterval
|
|
}
|
|
|
|
for _, endpoint := range configTargets.Endpoints {
|
|
target := NewTarget(endpoint, time.Second*5, interval, baseLabels)
|
|
m.Add(target)
|
|
}
|
|
}
|
|
}
|
|
}
|