func (b *configMapVolumeMounter) SetUpAt(dir string, fsGroup *int64) error { glog.V(3).Infof("Setting up volume %v for pod %v at %v", b.volName, b.pod.UID, dir) // Wrap EmptyDir, let it do the setup. wrapped, err := b.plugin.host.NewWrapperMounter(b.volName, wrappedVolumeSpec, &b.pod, *b.opts) if err != nil { return err } if err := wrapped.SetUpAt(dir, fsGroup); err != nil { return err } kubeClient := b.plugin.host.GetKubeClient() if kubeClient == nil { return fmt.Errorf("Cannot setup configMap volume %v because kube client is not configured", b.volName) } configMap, err := kubeClient.Core().ConfigMaps(b.pod.Namespace).Get(b.source.Name) if err != nil { glog.Errorf("Couldn't get configMap %v/%v: %v", b.pod.Namespace, b.source.Name, err) return err } totalBytes := totalBytes(configMap) glog.V(3).Infof("Received configMap %v/%v containing (%v) pieces of data, %v total bytes", b.pod.Namespace, b.source.Name, len(configMap.Data), totalBytes) payload, err := makePayload(b.source.Items, configMap) if err != nil { return err } writerContext := fmt.Sprintf("pod %v/%v volume %v", b.pod.Namespace, b.pod.Name, b.volName) writer, err := volumeutil.NewAtomicWriter(dir, writerContext) if err != nil { glog.Errorf("Error creating atomic writer: %v", err) return err } err = writer.Write(payload) if err != nil { glog.Errorf("Error writing payload to dir: %v", err) return err } err = volume.SetVolumeOwnership(b, fsGroup) if err != nil { glog.Errorf("Error applying volume ownership settings for group: %v", fsGroup) return err } return nil }
func (b *downwardAPIVolumeMounter) SetUpAt(dir string, fsGroup *int64) error { glog.V(3).Infof("Setting up a downwardAPI volume %v for pod %v/%v at %v", b.volName, b.pod.Namespace, b.pod.Name, dir) // Wrap EmptyDir. Here we rely on the idempotency of the wrapped plugin to avoid repeatedly mounting wrapped, err := b.plugin.host.NewWrapperMounter(b.volName, wrappedVolumeSpec(), b.pod, *b.opts) if err != nil { glog.Errorf("Couldn't setup downwardAPI volume %v for pod %v/%v: %s", b.volName, b.pod.Namespace, b.pod.Name, err.Error()) return err } if err := wrapped.SetUpAt(dir, fsGroup); err != nil { glog.Errorf("Unable to setup downwardAPI volume %v for pod %v/%v: %s", b.volName, b.pod.Namespace, b.pod.Name, err.Error()) return err } data, err := b.collectData(b.source.DefaultMode) if err != nil { glog.Errorf("Error preparing data for downwardAPI volume %v for pod %v/%v: %s", b.volName, b.pod.Namespace, b.pod.Name, err.Error()) return err } writerContext := fmt.Sprintf("pod %v/%v volume %v", b.pod.Namespace, b.pod.Name, b.volName) writer, err := volumeutil.NewAtomicWriter(dir, writerContext) if err != nil { glog.Errorf("Error creating atomic writer: %v", err) return err } err = writer.Write(data) if err != nil { glog.Errorf("Error writing payload to dir: %v", err) return err } err = volume.SetVolumeOwnership(b, fsGroup) if err != nil { glog.Errorf("Error applying volume ownership settings for group: %v", fsGroup) return err } return nil }