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volumecollector.go
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volumecollector.go
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package gc
import (
"net/http"
"time"
"code.cloudfoundry.org/lager"
"github.com/concourse/atc/db"
"github.com/concourse/baggageclaim"
bclient "github.com/concourse/baggageclaim/client"
)
type volumeCollector struct {
rootLogger lager.Logger
volumeFactory db.VolumeFactory
workerFactory db.WorkerFactory
baggageclaimClientFactory BaggageclaimClientFactory
}
//go:generate counterfeiter . BaggageclaimClientFactory
type BaggageclaimClientFactory interface {
NewClient(apiURL string, workerName string) bclient.Client
}
type baggageclaimClientFactory struct {
dbWorkerFactory db.WorkerFactory
}
func NewBaggageclaimClientFactory(dbWorkerFactory db.WorkerFactory) BaggageclaimClientFactory {
return &baggageclaimClientFactory{
dbWorkerFactory: dbWorkerFactory,
}
}
func (f *baggageclaimClientFactory) NewClient(apiURL string, workerName string) bclient.Client {
return bclient.NewWithHTTPClient(apiURL, &http.Client{
Transport: &http.Transport{
DisableKeepAlives: true,
ResponseHeaderTimeout: 1 * time.Minute,
},
})
}
func NewVolumeCollector(
logger lager.Logger,
volumeFactory db.VolumeFactory,
workerFactory db.WorkerFactory,
baggageclaimClientFactory BaggageclaimClientFactory,
) Collector {
return &volumeCollector{
rootLogger: logger,
volumeFactory: volumeFactory,
workerFactory: workerFactory,
baggageclaimClientFactory: baggageclaimClientFactory,
}
}
func (vc *volumeCollector) Run() error {
logger := vc.rootLogger.Session("run")
logger.Debug("start")
defer logger.Debug("done")
workers, err := vc.workerFactory.Workers()
if err != nil {
logger.Error("failed-to-get-workers", err)
return err
}
baggageClaimClients := map[string]bclient.Client{}
for _, worker := range workers {
if worker.BaggageclaimURL() != nil {
baggageClaimClients[worker.Name()] = vc.baggageclaimClientFactory.NewClient(*worker.BaggageclaimURL(), worker.Name())
}
}
createdVolumes, destroyingVolumes, err := vc.volumeFactory.GetOrphanedVolumes()
if err != nil {
logger.Error("failed-to-get-orphaned-volumes", err)
return err
}
if len(createdVolumes) > 0 || len(destroyingVolumes) > 0 {
logger.Debug("found-orphaned-volumes", lager.Data{
"created": len(createdVolumes),
"destroying": len(destroyingVolumes),
})
}
for _, createdVolume := range createdVolumes {
vLog := logger.Session("mark-created-as-destroying", lager.Data{
"volume": createdVolume.Handle(),
"worker": createdVolume.WorkerName(),
})
destroyingVolume, err := createdVolume.Destroying()
if err != nil {
vLog.Error("failed-to-transition", err)
continue
}
destroyingVolumes = append(destroyingVolumes, destroyingVolume)
}
for _, destroyingVolume := range destroyingVolumes {
vLog := logger.Session("destroy", lager.Data{
"handle": destroyingVolume.Handle(),
"worker": destroyingVolume.WorkerName(),
})
baggageClaimClient, found := baggageClaimClients[destroyingVolume.WorkerName()]
if !found {
vLog.Info("baggageclaim-client-is-missing")
continue
}
volume, found, err := baggageClaimClient.LookupVolume(vLog, destroyingVolume.Handle())
if err != nil {
vLog.Error("failed-to-lookup-volume-in-baggageclaim", err)
continue
}
if vc.destroyRealVolume(vLog.Session("in-worker"), volume, found) {
vc.destroyDBVolume(vLog.Session("in-db"), destroyingVolume)
}
}
return nil
}
func (vc *volumeCollector) destroyRealVolume(logger lager.Logger, volume baggageclaim.Volume, found bool) bool {
if found {
logger.Debug("destroying")
err := volume.Destroy()
if err != nil {
logger.Error("failed-to-destroy", err)
return false
}
logger.Debug("destroyed")
} else {
logger.Debug("already-removed")
}
return true
}
func (vc *volumeCollector) destroyDBVolume(logger lager.Logger, dbVolume db.DestroyingVolume) {
logger.Debug("destroying")
destroyed, err := dbVolume.Destroy()
if err != nil {
logger.Error("failed-to-destroy", err)
return
}
if !destroyed {
logger.Info("could-not-destroy")
return
}
logger.Debug("destroyed")
}