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-rw-r--r--cmd/podman/images.go28
-rw-r--r--libpod/image/image.go101
-rw-r--r--libpod/runtime_img.go36
-rw-r--r--test/e2e/rmi_test.go96
4 files changed, 225 insertions, 36 deletions
diff --git a/cmd/podman/images.go b/cmd/podman/images.go
index fdf2eb02c..092326b1f 100644
--- a/cmd/podman/images.go
+++ b/cmd/podman/images.go
@@ -7,7 +7,8 @@ import (
"strings"
"time"
- "github.com/containers/storage"
+ "github.com/sirupsen/logrus"
+
"github.com/docker/go-units"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
@@ -259,12 +260,16 @@ func sortImagesOutput(sortBy string, imagesOutput imagesSorted) imagesSorted {
}
// getImagesTemplateOutput returns the images information to be printed in human readable format
-func getImagesTemplateOutput(ctx context.Context, runtime *libpod.Runtime, images []*image.Image, opts imagesOptions, storageLayers []storage.Layer) (imagesOutput imagesSorted) {
+func getImagesTemplateOutput(ctx context.Context, runtime *libpod.Runtime, images []*image.Image, opts imagesOptions) (imagesOutput imagesSorted) {
for _, img := range images {
// If all is false and the image doesn't have a name, check to see if the top layer of the image is a parent
// to another image's top layer. If it is, then it is an intermediate image so don't print out if the --all flag
// is not set.
- if !opts.all && len(img.Names()) == 0 && !layerIsLeaf(storageLayers, img.TopLayer()) {
+ isParent, err := img.IsParent()
+ if err != nil {
+ logrus.Errorf("error checking if image is a parent %q: %v", img.ID(), err)
+ }
+ if !opts.all && len(img.Names()) == 0 && isParent {
continue
}
createdTime := img.Created()
@@ -325,17 +330,13 @@ func generateImagesOutput(ctx context.Context, runtime *libpod.Runtime, images [
return nil
}
var out formats.Writer
- storageLayers, err := runtime.GetLayers()
- if err != nil {
- return errors.Wrap(err, "error getting layers from store")
- }
switch opts.format {
case formats.JSONString:
imagesOutput := getImagesJSONOutput(ctx, runtime, images)
out = formats.JSONStructArray{Output: imagesToGeneric([]imagesTemplateParams{}, imagesOutput)}
default:
- imagesOutput := getImagesTemplateOutput(ctx, runtime, images, opts, storageLayers)
+ imagesOutput := getImagesTemplateOutput(ctx, runtime, images, opts)
out = formats.StdoutTemplateArray{Output: imagesToGeneric(imagesOutput, []imagesJSONParams{}), Template: opts.outputformat, Fields: imagesOutput[0].HeaderMap()}
}
return formats.Writer(out).Out()
@@ -391,14 +392,3 @@ func CreateFilterFuncs(ctx context.Context, r *libpod.Runtime, c *cli.Context, i
}
return filterFuncs, nil
}
-
-// layerIsLeaf goes through the layers in the store and checks if "layer" is
-// the parent of any other layer in store.
-func layerIsLeaf(storageLayers []storage.Layer, layer string) bool {
- for _, storeLayer := range storageLayers {
- if storeLayer.Parent == layer {
- return false
- }
- }
- return true
-}
diff --git a/libpod/image/image.go b/libpod/image/image.go
index 5dd2c57f3..082c4906f 100644
--- a/libpod/image/image.go
+++ b/libpod/image/image.go
@@ -59,6 +59,9 @@ type Runtime struct {
SignaturePolicyPath string
}
+// ErrRepoTagNotFound is the error returned when the image id given doesn't match a rep tag in store
+var ErrRepoTagNotFound = errors.New("unable to match user input to any specific repotag")
+
// NewImageRuntimeFromStore creates an ImageRuntime based on a provided store
func NewImageRuntimeFromStore(store storage.Store) *Runtime {
return &Runtime{
@@ -333,9 +336,39 @@ func (i *Image) TopLayer() string {
// Remove an image; container removal for the image must be done
// outside the context of images
+// TODO: the force param does nothing as of now. Need to move container
+// handling logic here eventually.
func (i *Image) Remove(force bool) error {
- _, err := i.imageruntime.store.DeleteImage(i.ID(), true)
- return err
+ parent, err := i.GetParent()
+ if err != nil {
+ return err
+ }
+ if _, err := i.imageruntime.store.DeleteImage(i.ID(), true); err != nil {
+ return err
+ }
+ for parent != nil {
+ nextParent, err := parent.GetParent()
+ if err != nil {
+ return err
+ }
+ children, err := parent.GetChildren()
+ if err != nil {
+ return err
+ }
+ // Do not remove if image is a base image and is not untagged, or if
+ // the image has more children.
+ if (nextParent == nil && len(parent.Names()) > 0) || len(children) > 0 {
+ return nil
+ }
+ id := parent.ID()
+ if _, err := i.imageruntime.store.DeleteImage(id, true); err != nil {
+ logrus.Debugf("unable to remove intermediate image %q: %v", id, err)
+ } else {
+ fmt.Println(id)
+ }
+ parent = nextParent
+ }
+ return nil
}
// Decompose an Image
@@ -902,7 +935,7 @@ func (i *Image) MatchRepoTag(input string) (string, error) {
}
}
if maxCount == 0 {
- return "", errors.Errorf("unable to match user input to any specific repotag")
+ return "", ErrRepoTagNotFound
}
if len(results[maxCount]) > 1 {
return "", errors.Errorf("user input matched multiple repotags for the image")
@@ -916,6 +949,68 @@ func splitString(input string) string {
return split[len(split)-1]
}
+// IsParent goes through the layers in the store and checks if i.TopLayer is
+// the parent of any other layer in store. Double check that image with that
+// layer exists as well.
+func (i *Image) IsParent() (bool, error) {
+ children, err := i.GetChildren()
+ if err != nil {
+ return false, err
+ }
+ return len(children) > 0, nil
+}
+
+// GetParent returns the image ID of the parent. Return nil if a parent is not found.
+func (i *Image) GetParent() (*Image, error) {
+ images, err := i.imageruntime.GetImages()
+ if err != nil {
+ return nil, err
+ }
+ layer, err := i.imageruntime.store.Layer(i.TopLayer())
+ if err != nil {
+ return nil, err
+ }
+ for _, img := range images {
+ if img.TopLayer() == layer.Parent {
+ return img, nil
+ }
+ }
+ return nil, nil
+}
+
+// GetChildren returns a list of the imageIDs that depend on the image
+func (i *Image) GetChildren() ([]string, error) {
+ var children []string
+ images, err := i.imageruntime.GetImages()
+ if err != nil {
+ return nil, err
+ }
+ layers, err := i.imageruntime.store.Layers()
+ if err != nil {
+ return nil, err
+ }
+
+ for _, layer := range layers {
+ if layer.Parent == i.TopLayer() {
+ if imageID := getImageOfTopLayer(images, layer.ID); len(imageID) > 0 {
+ children = append(children, imageID...)
+ }
+ }
+ }
+ return children, nil
+}
+
+// getImageOfTopLayer returns the image ID where layer is the top layer of the image
+func getImageOfTopLayer(images []*Image, layer string) []string {
+ var matches []string
+ for _, img := range images {
+ if img.TopLayer() == layer {
+ matches = append(matches, img.ID())
+ }
+ }
+ return matches
+}
+
// InputIsID returns a bool if the user input for an image
// is the image's partial or full id
func (i *Image) InputIsID() bool {
diff --git a/libpod/runtime_img.go b/libpod/runtime_img.go
index 8b0c08cd3..d127d753f 100644
--- a/libpod/runtime_img.go
+++ b/libpod/runtime_img.go
@@ -75,7 +75,7 @@ type CopyOptions struct {
// RemoveImage deletes an image from local storage
// Images being used by running containers can only be removed if force=true
-func (r *Runtime) RemoveImage(ctx context.Context, image *image.Image, force bool) (string, error) {
+func (r *Runtime) RemoveImage(ctx context.Context, img *image.Image, force bool) (string, error) {
r.lock.Lock()
defer r.lock.Unlock()
@@ -90,50 +90,58 @@ func (r *Runtime) RemoveImage(ctx context.Context, image *image.Image, force boo
}
imageCtrs := []*Container{}
for _, ctr := range ctrs {
- if ctr.config.RootfsImageID == image.ID() {
+ if ctr.config.RootfsImageID == img.ID() {
imageCtrs = append(imageCtrs, ctr)
}
}
- if len(imageCtrs) > 0 && len(image.Names()) <= 1 {
+ if len(imageCtrs) > 0 && len(img.Names()) <= 1 {
if force {
for _, ctr := range imageCtrs {
if err := r.removeContainer(ctx, ctr, true); err != nil {
- return "", errors.Wrapf(err, "error removing image %s: container %s using image could not be removed", image.ID(), ctr.ID())
+ return "", errors.Wrapf(err, "error removing image %s: container %s using image could not be removed", img.ID(), ctr.ID())
}
}
} else {
- return "", fmt.Errorf("could not remove image %s as it is being used by %d containers", image.ID(), len(imageCtrs))
+ return "", fmt.Errorf("could not remove image %s as it is being used by %d containers", img.ID(), len(imageCtrs))
}
}
- if len(image.Names()) > 1 && !image.InputIsID() {
+ hasChildren, err := img.IsParent()
+ if err != nil {
+ return "", err
+ }
+
+ if (len(img.Names()) > 1 && !img.InputIsID()) || hasChildren {
// If the image has multiple reponames, we do not technically delete
// the image. we figure out which repotag the user is trying to refer
// to and untag it.
- repoName, err := image.MatchRepoTag(image.InputName)
+ repoName, err := img.MatchRepoTag(img.InputName)
+ if hasChildren && err == image.ErrRepoTagNotFound {
+ return "", errors.Errorf("unable to delete %q (cannot be forced) - image has dependent child images", img.ID())
+ }
if err != nil {
return "", err
}
- if err := image.UntagImage(repoName); err != nil {
+ if err := img.UntagImage(repoName); err != nil {
return "", err
}
return fmt.Sprintf("Untagged: %s", repoName), nil
- } else if len(image.Names()) > 1 && image.InputIsID() && !force {
+ } else if len(img.Names()) > 1 && img.InputIsID() && !force {
// If the user requests to delete an image by ID and the image has multiple
// reponames and no force is applied, we error out.
- return "", fmt.Errorf("unable to delete %s (must force) - image is referred to in multiple tags", image.ID())
+ return "", fmt.Errorf("unable to delete %s (must force) - image is referred to in multiple tags", img.ID())
}
- err = image.Remove(force)
+ err = img.Remove(force)
if err != nil && errors.Cause(err) == storage.ErrImageUsedByContainer {
- if errStorage := r.rmStorageContainers(force, image); errStorage == nil {
+ if errStorage := r.rmStorageContainers(force, img); errStorage == nil {
// Containers associated with the image should be deleted now,
// let's try removing the image again.
- err = image.Remove(force)
+ err = img.Remove(force)
} else {
err = errStorage
}
}
- return image.ID(), err
+ return img.ID(), err
}
// Remove containers that are in storage rather than Podman.
diff --git a/test/e2e/rmi_test.go b/test/e2e/rmi_test.go
index 399fcd0fc..2d096d7ba 100644
--- a/test/e2e/rmi_test.go
+++ b/test/e2e/rmi_test.go
@@ -103,4 +103,100 @@ var _ = Describe("Podman rmi", func() {
resultForce.WaitWithDefaultTimeout()
Expect(resultForce.ExitCode()).To(Equal(0))
})
+
+ It("podman rmi image that is a parent of another image", func() {
+ session := podmanTest.Podman([]string{"rmi", "-fa"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.Podman([]string{"run", "--name", "c_test", ALPINE, "true"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.Podman([]string{"commit", "-q", "c_test", "test"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.Podman([]string{"rm", "c_test"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.Podman([]string{"rmi", ALPINE})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.Podman([]string{"images", "-q"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ Expect(len(session.OutputToStringArray())).To(Equal(1))
+
+ session = podmanTest.Podman([]string{"images", "-q", "-a"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ Expect(len(session.OutputToStringArray())).To(Equal(2))
+ untaggedImg := session.OutputToStringArray()[1]
+
+ session = podmanTest.Podman([]string{"rmi", "-f", untaggedImg})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Not(Equal(0)))
+ })
+
+ It("podman rmi with cached images", func() {
+ session := podmanTest.Podman([]string{"rmi", "-fa"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ dockerfile := `FROM docker.io/library/alpine:latest
+ RUN mkdir hello
+ RUN touch test.txt
+ ENV foo=bar
+ `
+ podmanTest.BuildImage(dockerfile, "test", "true")
+
+ dockerfile = `FROM docker.io/library/alpine:latest
+ RUN mkdir hello
+ RUN touch test.txt
+ RUN mkdir blah
+ ENV foo=bar
+ `
+ podmanTest.BuildImage(dockerfile, "test2", "true")
+
+ session = podmanTest.Podman([]string{"images", "-q", "-a"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ numOfImages := len(session.OutputToStringArray())
+
+ session = podmanTest.Podman([]string{"rmi", "test2"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.Podman([]string{"images", "-q", "-a"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ Expect(numOfImages - len(session.OutputToStringArray())).To(Equal(2))
+
+ session = podmanTest.Podman([]string{"rmi", "test"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.Podman([]string{"images", "-q", "-a"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ Expect(len(session.OutputToStringArray())).To(Equal(1))
+
+ podmanTest.BuildImage(dockerfile, "test3", "true")
+
+ session = podmanTest.Podman([]string{"rmi", ALPINE})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.Podman([]string{"rmi", "test3"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.Podman([]string{"images", "-q", "-a"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ Expect(len(session.OutputToString())).To(Equal(0))
+ })
})
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-09-25 10:34:19 +0000