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report.go
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report.go
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package volumeserver
import (
"encoding/json"
"io/ioutil"
"net/http"
"github.com/pf-qiu/concourse/v6/atc/metric"
"code.cloudfoundry.org/lager"
)
// ReportWorkerVolumes provides an API endpoint for workers to report their current volumes
func (s *Server) ReportWorkerVolumes(w http.ResponseWriter, r *http.Request) {
workerName := r.URL.Query().Get("worker_name")
w.Header().Set("Content-Type", "application/json")
logger := s.logger.Session("report-volumes-for-worker", lager.Data{"name": workerName})
if workerName == "" {
logger.Info("missing-worker-name")
w.WriteHeader(http.StatusNotFound)
return
}
defer r.Body.Close()
data, err := ioutil.ReadAll(r.Body)
if err != nil {
logger.Error("failed-to-read-body", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
var handles []string
err = json.Unmarshal(data, &handles)
if err != nil {
logger.Error("failed-to-unmarshal-body", err)
w.WriteHeader(http.StatusBadRequest)
return
}
logger.Debug("handles-info", lager.Data{
"handles-count": len(handles),
})
numUnknownVolumes, err := s.repository.DestroyUnknownVolumes(workerName, handles)
if err != nil {
logger.Error("failed-to-destroy-unknown-volumes", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
if numUnknownVolumes > 0 {
logger.Info("unknown-volume-handles", lager.Data{
"worker-name": workerName,
"handles-count": numUnknownVolumes,
})
}
metric.WorkerUnknownVolumes{
WorkerName: workerName,
Volumes: numUnknownVolumes,
}.Emit(logger)
err = s.repository.UpdateVolumesMissingSince(workerName, handles)
if err != nil {
logger.Error("failed-to-update-volumes-missing-since", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
err = s.destroyer.DestroyVolumes(workerName, handles)
if err != nil {
logger.Error("failed-to-destroy-volumes", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}