package convert import ( composetypes "github.com/docker/cli/cli/compose/types" "github.com/docker/docker/api/types/mount" "github.com/pkg/errors" ) type volumes map[string]composetypes.VolumeConfig // Volumes from compose-file types to engine api types func Volumes(serviceVolumes []composetypes.ServiceVolumeConfig, stackVolumes volumes, namespace Namespace) ([]mount.Mount, error) { var mounts []mount.Mount for _, volumeConfig := range serviceVolumes { mount, err := convertVolumeToMount(volumeConfig, stackVolumes, namespace) if err != nil { return nil, err } mounts = append(mounts, mount) } return mounts, nil } func convertVolumeToMount( volume composetypes.ServiceVolumeConfig, stackVolumes volumes, namespace Namespace, ) (mount.Mount, error) { result := mount.Mount{ Type: mount.Type(volume.Type), Source: volume.Source, Target: volume.Target, ReadOnly: volume.ReadOnly, Consistency: mount.Consistency(volume.Consistency), } // Anonymous volumes if volume.Source == "" { return result, nil } if volume.Type == "volume" && volume.Bind != nil { return result, errors.New("bind options are incompatible with type volume") } if volume.Type == "bind" && volume.Volume != nil { return result, errors.New("volume options are incompatible with type bind") } if volume.Bind != nil { result.BindOptions = &mount.BindOptions{ Propagation: mount.Propagation(volume.Bind.Propagation), } } // Binds volumes if volume.Type == "bind" { return result, nil } stackVolume, exists := stackVolumes[volume.Source] if !exists { return result, errors.Errorf("undefined volume %q", volume.Source) } result.Source = namespace.Scope(volume.Source) result.VolumeOptions = &mount.VolumeOptions{} if volume.Volume != nil { result.VolumeOptions.NoCopy = volume.Volume.NoCopy } // External named volumes if stackVolume.External.External { result.Source = stackVolume.External.Name return result, nil } result.VolumeOptions.Labels = AddStackLabel(namespace, stackVolume.Labels) if stackVolume.Driver != "" || stackVolume.DriverOpts != nil { result.VolumeOptions.DriverConfig = &mount.Driver{ Name: stackVolume.Driver, Options: stackVolume.DriverOpts, } } // Named volumes return result, nil }