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deleter.go
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/
deleter.go
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package groot
import (
"fmt"
"time"
"code.cloudfoundry.org/lager"
)
type Deleter struct {
imageCloner ImageCloner
dependencyManager DependencyManager
metricsEmitter MetricsEmitter
}
func IamDeleter(imageCloner ImageCloner, dependencyManager DependencyManager, metricsEmitter MetricsEmitter) *Deleter {
return &Deleter{
imageCloner: imageCloner,
dependencyManager: dependencyManager,
metricsEmitter: metricsEmitter,
}
}
func (d *Deleter) Delete(logger lager.Logger, id string) error {
startTime := time.Now()
defer d.metricsEmitter.TryEmitDuration(logger, MetricImageDeletionTime, time.Since(startTime))
logger = logger.Session("groot-deleting", lager.Data{"imageID": id})
logger.Info("start")
defer logger.Info("end")
err := d.imageCloner.Destroy(logger, id)
imageRefName := fmt.Sprintf(ImageReferenceFormat, id)
if derErr := d.dependencyManager.Deregister(imageRefName); derErr != nil {
logger.Error("failed-to-deregister-dependencies", derErr)
}
return err
}