remove image podman no prune

Signed-off-by: Karthik Elango <kelango@redhat.com>

cmd/podman/images/rm.go

@@ -61,6 +61,7 @@ func imageRemoveFlagSet(flags *pflag.FlagSet) {
 	flags.BoolVarP(&imageOpts.All, "all", "a", false, "Remove all images")
 	flags.BoolVarP(&imageOpts.Ignore, "ignore", "i", false, "Ignore errors if a specified image does not exist")
 	flags.BoolVarP(&imageOpts.Force, "force", "f", false, "Force Removal of the image")
+	flags.BoolVar(&imageOpts.NoPrune, "no-prune", false, "Do not remove dangling images")
 }
 
 func rm(cmd *cobra.Command, args []string) error {

docs/source/markdown/podman-rmi.1.md

@@ -28,6 +28,9 @@ This option will cause podman to remove all containers that are using the image
 
 If a specified image does not exist in the local storage, ignore it and do not throw an error.
 
+#### **--no-prune**
+
+This options will not remove dangling parents of specified image
 
 Remove an image by its short ID
 ```

pkg/api/handlers/libpod/images.go

@@ -547,6 +547,7 @@ func ImagesBatchRemove(w http.ResponseWriter, r *http.Request) {
 		Ignore         bool     `schema:"ignore"`
 		LookupManifest bool     `schema:"lookupManifest"`
 		Images         []string `schema:"images"`
+		NoPrune        bool     `schema:"noprune"`
 	}{}
 
 	if err := decoder.Decode(&query, r.URL.Query()); err != nil {
@@ -554,7 +555,7 @@ func ImagesBatchRemove(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	opts := entities.ImageRemoveOptions{All: query.All, Force: query.Force, Ignore: query.Ignore, LookupManifest: query.LookupManifest}
+	opts := entities.ImageRemoveOptions{All: query.All, Force: query.Force, Ignore: query.Ignore, LookupManifest: query.LookupManifest, NoPrune: query.NoPrune}
 	imageEngine := abi.ImageEngine{Libpod: runtime}
 	rmReport, rmErrors := imageEngine.Remove(r.Context(), query.Images, opts)
 	strErrs := errorhandling.ErrorsToStrings(rmErrors)

pkg/bindings/images/types.go

@@ -15,6 +15,8 @@ type RemoveOptions struct {
 	Ignore *bool
 	// Confirms if given name is a manifest list and removes it, otherwise returns error.
 	LookupManifest *bool
+	// Does not remove dangling parent images
+	NoPrune *bool
 }
 
 //go:generate go run ../generator/generator.go DiffOptions

pkg/bindings/images/types_remove_options.go

@@ -76,3 +76,18 @@ func (o *RemoveOptions) GetLookupManifest() bool {
 	}
 	return *o.LookupManifest
 }
+
+// WithNoPrune set field NoPrune to given value
+func (o *RemoveOptions) WithNoPrune(value bool) *RemoveOptions {
+	o.NoPrune = &value
+	return o
+}
+
+// GetNoPrune returns value of field NoPrune
+func (o *RemoveOptions) GetNoPrune() bool {
+	if o.NoPrune == nil {
+		var z bool
+		return z
+	}
+	return *o.NoPrune
+}

pkg/domain/entities/images.go

@@ -94,6 +94,8 @@ type ImageRemoveOptions struct {
 	Ignore bool
 	// Confirms if given name is a manifest list and removes it, otherwise returns error.
 	LookupManifest bool
+	// NoPrune will not remove dangling images
+	NoPrune bool
 }
 
 // ImageRemoveReport is the response for removing one or more image(s) from storage

pkg/domain/infra/abi/images.go

@@ -565,6 +565,7 @@ func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entitie
 	libimageOptions.Force = opts.Force
 	libimageOptions.Ignore = opts.Ignore
 	libimageOptions.LookupManifest = opts.LookupManifest
+	libimageOptions.NoPrune = opts.NoPrune
 	if !opts.All {
 		libimageOptions.Filters = append(libimageOptions.Filters, "intermediate=false")
 	}
@@ -581,7 +582,7 @@ func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entitie
 
 	rmErrors = libimageErrors
 
-	return
+	return report, rmErrors
 }
 
 // Shutdown Libpod engine

pkg/domain/infra/tunnel/images.go

@@ -28,7 +28,7 @@ func (ir *ImageEngine) Exists(_ context.Context, nameOrID string) (*entities.Boo
 }
 
 func (ir *ImageEngine) Remove(ctx context.Context, imagesArg []string, opts entities.ImageRemoveOptions) (*entities.ImageRemoveReport, []error) {
-	options := new(images.RemoveOptions).WithForce(opts.Force).WithIgnore(opts.Ignore).WithAll(opts.All).WithLookupManifest(opts.LookupManifest)
+	options := new(images.RemoveOptions).WithForce(opts.Force).WithIgnore(opts.Ignore).WithAll(opts.All).WithLookupManifest(opts.LookupManifest).WithNoPrune(opts.NoPrune)
 	return images.Remove(ir.ClientCtx, imagesArg, options)
 }
 

test/e2e/rmi_test.go

@@ -307,4 +307,82 @@ RUN touch %s`, CIRROS_IMAGE, imageName)
 		}
 		wg.Wait()
 	})
+
+	It("podman rmi --no-prune with dangling parents", func() {
+		podmanTest.AddImageToRWStore(ALPINE)
+		session := podmanTest.Podman([]string{"create", "--name", "c_test1", ALPINE, "true"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"commit", "-q", "c_test1", "test1"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"create", "--name", "c_test2", "test1", "true"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"commit", "-q", "c_test2", "test2"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+		imageID2 := session.OutputToString()
+
+		session = podmanTest.Podman([]string{"create", "--name", "c_test3", "test2", "true"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"commit", "-q", "c_test3", "test3"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+		imageID3 := session.OutputToString()
+
+		session = podmanTest.Podman([]string{"untag", "test2"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"untag", "test1"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"rmi", "-f", "--no-prune", "test3"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+		Expect(session.OutputToString()).To(ContainSubstring(imageID3))
+		Expect(session.OutputToString()).NotTo(ContainSubstring(imageID2))
+	})
+
+	It("podman rmi --no-prune with undangling parents", func() {
+		podmanTest.AddImageToRWStore(ALPINE)
+		session := podmanTest.Podman([]string{"create", "--name", "c_test1", ALPINE, "true"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"commit", "-q", "c_test1", "test1"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"create", "--name", "c_test2", "test1", "true"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"commit", "-q", "c_test2", "test2"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+		imageID2 := session.OutputToString()
+
+		session = podmanTest.Podman([]string{"create", "--name", "c_test3", "test2", "true"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"commit", "-q", "c_test3", "test3"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+		imageID3 := session.OutputToString()
+
+		session = podmanTest.Podman([]string{"rmi", "-f", "--no-prune", "test3"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+		Expect(session.OutputToString()).To(ContainSubstring(imageID3))
+		Expect(session.OutputToString()).NotTo(ContainSubstring(imageID2))
+	})
 })