From 22f55ce406cfea7feebb34b469f11e6cf657c51e Mon Sep 17 00:00:00 2001 From: Sascha Grunert Date: Mon, 19 Aug 2019 12:06:11 +0200 Subject: Fix directory pull image name for OCI images This is a breaking change and modifies the resulting image name when pulling from an directory via `oci:...`. Without this patch, the image names pulled via a local directory got processed incorrectly, like this: ``` > podman pull oci:alpine > podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/oci alpine 4fa153a82426 5 weeks ago 5.85 MB ``` We now use the same approach as in the corresponding [buildah fix][1] to adapt the behavior for correct `localhost/` prefixing. [1]: https://github.com/containers/buildah/pull/1800 After applying the patch the same OCI image pull looks like this: ``` > ./bin/podman pull oci:alpine > podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/alpine latest 4fa153a82426 5 weeks ago 5.85 MB ``` End-to-end tests have been adapted as well to cover the added scenario. Relates to: https://github.com/containers/buildah/issues/1797 Signed-off-by: Sascha Grunert --- libpod/image/pull.go | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) (limited to 'libpod') diff --git a/libpod/image/pull.go b/libpod/image/pull.go index 78cfe3626..dbf3a4ef5 100644 --- a/libpod/image/pull.go +++ b/libpod/image/pull.go @@ -13,6 +13,7 @@ import ( dockerarchive "github.com/containers/image/docker/archive" "github.com/containers/image/docker/tarfile" ociarchive "github.com/containers/image/oci/archive" + oci "github.com/containers/image/oci/layout" is "github.com/containers/image/storage" "github.com/containers/image/transports" "github.com/containers/image/transports/alltransports" @@ -37,6 +38,9 @@ var ( DirTransport = directory.Transport.Name() // DockerTransport is the transport for docker registries DockerTransport = docker.Transport.Name() + // OCIDirTransport is the transport for pushing and pulling + // images to and from a directory containing an OCI image + OCIDirTransport = oci.Transport.Name() // AtomicTransport is the transport for atomic registries AtomicTransport = "atomic" // DefaultTransport is a prefix that we apply to an image name @@ -189,12 +193,12 @@ func (ir *Runtime) pullGoalFromImageReference(ctx context.Context, srcRef types. return ir.getSinglePullRefPairGoal(srcRef, dest) case DirTransport: - path := srcRef.StringWithinTransport() - image := path - if image[:1] == "/" { - // Set localhost as the registry so docker.io isn't prepended, and the path becomes the repository - image = DefaultLocalRegistry + image - } + image := toLocalImageName(srcRef.StringWithinTransport()) + return ir.getSinglePullRefPairGoal(srcRef, image) + + case OCIDirTransport: + split := strings.SplitN(srcRef.StringWithinTransport(), ":", 2) + image := toLocalImageName(split[0]) return ir.getSinglePullRefPairGoal(srcRef, image) default: @@ -202,6 +206,15 @@ func (ir *Runtime) pullGoalFromImageReference(ctx context.Context, srcRef types. } } +// toLocalImageName converts an image name into a 'localhost/' prefixed one +func toLocalImageName(imageName string) string { + return fmt.Sprintf( + "%s/%s", + DefaultLocalRegistry, + strings.TrimLeft(imageName, "/"), + ) +} + // pullImageFromHeuristicSource pulls an image based on inputName, which is heuristically parsed and may involve configured registries. // Use pullImageFromReference if the source is known precisely. func (ir *Runtime) pullImageFromHeuristicSource(ctx context.Context, inputName string, writer io.Writer, authfile, signaturePolicyPath string, signingOptions SigningOptions, dockerOptions *DockerRegistryOptions, label *string) ([]string, error) { -- cgit v1.2.3-54-g00ecf