forked from grafana/loki
/
targetmanager.go
81 lines (72 loc) · 1.99 KB
/
targetmanager.go
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package cloudflare
import (
"github.com/go-kit/log"
"github.com/grafana/loki/clients/pkg/logentry/stages"
"github.com/grafana/loki/clients/pkg/promtail/api"
"github.com/grafana/loki/clients/pkg/promtail/positions"
"github.com/grafana/loki/clients/pkg/promtail/scrapeconfig"
"github.com/grafana/loki/clients/pkg/promtail/targets/target"
)
// TargetManager manages a series of cloudflare targets.
type TargetManager struct {
logger log.Logger
targets map[string]*Target
}
// NewTargetManager creates a new cloudflare target managers.
func NewTargetManager(
metrics *Metrics,
logger log.Logger,
positions positions.Positions,
pushClient api.EntryHandler,
scrapeConfigs []scrapeconfig.Config,
) (*TargetManager, error) {
tm := &TargetManager{
logger: logger,
targets: make(map[string]*Target),
}
for _, cfg := range scrapeConfigs {
if cfg.CloudflareConfig == nil {
continue
}
pipeline, err := stages.NewPipeline(log.With(logger, "component", "cloudflare_pipeline"), cfg.PipelineStages, &cfg.JobName, metrics.reg)
if err != nil {
return nil, err
}
t, err := NewTarget(metrics, log.With(logger, "target", "cloudflare"), pipeline.Wrap(pushClient), positions, cfg.CloudflareConfig)
if err != nil {
return nil, err
}
tm.targets[cfg.JobName] = t
}
return tm, nil
}
// Ready returns true if at least one cloudflare target is active.
func (tm *TargetManager) Ready() bool {
for _, t := range tm.targets {
if t.Ready() {
return true
}
}
return false
}
func (tm *TargetManager) Stop() {
for _, t := range tm.targets {
t.Stop()
}
}
func (tm *TargetManager) ActiveTargets() map[string][]target.Target {
result := make(map[string][]target.Target, len(tm.targets))
for k, v := range tm.targets {
if v.Ready() {
result[k] = []target.Target{v}
}
}
return result
}
func (tm *TargetManager) AllTargets() map[string][]target.Target {
result := make(map[string][]target.Target, len(tm.targets))
for k, v := range tm.targets {
result[k] = []target.Target{v}
}
return result
}