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-rw-r--r--libpod/image/prune.go164
1 files changed, 0 insertions, 164 deletions
diff --git a/libpod/image/prune.go b/libpod/image/prune.go
deleted file mode 100644
index e0480d3d1..000000000
--- a/libpod/image/prune.go
+++ /dev/null
@@ -1,164 +0,0 @@
-package image
-
-import (
- "context"
- "strconv"
- "strings"
-
- "github.com/containers/podman/v3/libpod/events"
- "github.com/containers/podman/v3/pkg/domain/entities/reports"
- "github.com/containers/podman/v3/pkg/util"
- "github.com/containers/storage"
- "github.com/pkg/errors"
- "github.com/sirupsen/logrus"
-)
-
-func generatePruneFilterFuncs(filter, filterValue string) (ImageFilter, error) {
- switch filter {
- case "label":
- return func(i *Image) bool {
- labels, err := i.Labels(context.Background())
- if err != nil {
- return false
- }
- return util.MatchLabelFilters([]string{filterValue}, labels)
- }, nil
-
- case "until":
- until, err := util.ComputeUntilTimestamp([]string{filterValue})
- if err != nil {
- return nil, err
- }
- return func(i *Image) bool {
- if !until.IsZero() && i.Created().Before(until) {
- return true
- }
- return false
- }, nil
- case "dangling":
- danglingImages, err := strconv.ParseBool(filterValue)
- if err != nil {
- return nil, errors.Wrapf(err, "invalid filter dangling=%s", filterValue)
- }
- return ImageFilter(DanglingFilter(danglingImages)), nil
- }
- return nil, nil
-}
-
-// GetPruneImages returns a slice of images that have no names/unused
-func (ir *Runtime) GetPruneImages(ctx context.Context, all bool, filterFuncs []ImageFilter) ([]*Image, error) {
- var (
- pruneImages []*Image
- )
-
- allImages, err := ir.GetRWImages()
- if err != nil {
- return nil, err
- }
-
- tree, err := ir.layerTree()
- if err != nil {
- return nil, err
- }
-
- for _, i := range allImages {
- // filter the images based on this.
- for _, filterFunc := range filterFuncs {
- if !filterFunc(i) {
- continue
- }
- }
-
- if all {
- containers, err := i.Containers()
- if err != nil {
- return nil, err
- }
- if len(containers) < 1 {
- pruneImages = append(pruneImages, i)
- continue
- }
- }
-
- // skip the cache (i.e., with parent) and intermediate (i.e.,
- // with children) images
- intermediate, err := tree.hasChildrenAndParent(ctx, i)
- if err != nil {
- return nil, err
- }
- if intermediate {
- continue
- }
-
- if i.Dangling() {
- pruneImages = append(pruneImages, i)
- }
- }
- return pruneImages, nil
-}
-
-// PruneImages prunes dangling and optionally all unused images from the local
-// image store
-func (ir *Runtime) PruneImages(ctx context.Context, all bool, filter []string) ([]*reports.PruneReport, error) {
- preports := make([]*reports.PruneReport, 0)
- filterFuncs := make([]ImageFilter, 0, len(filter))
- for _, f := range filter {
- filterSplit := strings.SplitN(f, "=", 2)
- if len(filterSplit) < 2 {
- return nil, errors.Errorf("filter input must be in the form of filter=value: %s is invalid", f)
- }
-
- generatedFunc, err := generatePruneFilterFuncs(filterSplit[0], filterSplit[1])
- if err != nil {
- return nil, errors.Wrapf(err, "invalid filter")
- }
- filterFuncs = append(filterFuncs, generatedFunc)
- }
-
- prev := 0
- for {
- toPrune, err := ir.GetPruneImages(ctx, all, filterFuncs)
- if err != nil {
- return nil, errors.Wrap(err, "unable to get images to prune")
- }
- numImages := len(toPrune)
- if numImages == 0 || numImages == prev {
- // If there's nothing left to do, return.
- break
- }
- prev = numImages
- for _, img := range toPrune {
- repotags, err := img.RepoTags()
- if err != nil {
- return nil, err
- }
- nameOrID := img.ID()
- s, err := img.Size(ctx)
- imgSize := uint64(0)
- if err != nil {
- logrus.Warnf("Failed to collect image size for: %s, %s", nameOrID, err)
- } else {
- imgSize = *s
- }
- if err := img.Remove(ctx, false); err != nil {
- if errors.Cause(err) == storage.ErrImageUsedByContainer {
- logrus.Warnf("Failed to prune image %s as it is in use: %v.\nA container associated with containers/storage (e.g., Buildah, CRI-O, etc.) maybe associated with this image.\nUsing the rmi command with the --force option will remove the container and image, but may cause failures for other dependent systems.", img.ID(), err)
- continue
- }
- return nil, errors.Wrap(err, "failed to prune image")
- }
- defer img.newImageEvent(events.Prune)
-
- if len(repotags) > 0 {
- nameOrID = repotags[0]
- }
-
- preports = append(preports, &reports.PruneReport{
- Id: nameOrID,
- Err: nil,
- Size: uint64(imgSize),
- })
- }
- }
- return preports, nil
-}