Cannot push image to ostree

[gouyang]

it's a regression issue as it works before.

# buildah push docker.io/library/busybox:latest ostree:busybox:latest
Getting image source signatures
Copying blob sha256:ae25bfd8dcdeab5892b4efa7364c0a1bba59e11491e10415893b8905e3467799
 1.29 MiB / 1.29 MiB [======================================================] 0s
Copying config sha256:807fd4df40d170bfa2b3176ba4524cda95d9ec8073aac3b0d52b3e2d65559565
 1.46 KiB / 1.46 KiB [======================================================] 0s
Writing manifest to image destination
Storing signatures
error pushing image "docker.io/library/busybox:latest" to "ostree:busybox:latest": error copying layers and metadata: Error committing the finished image: gzip: invalid header


# buildah version
Version:       0.10
Go Version:    go1.9.2
Image Spec:    1.0.0
Runtime Spec:  1.0.0
Git Commit:    adfb256
Built:         Mon Jan 15 00:56:51 2018
OS/Arch:       linux/amd64

[rhatdan]

@giuseppe PTAL

[giuseppe]

it is addressed in containers/image#401 by: "ostree: use archive.DecompressStream instead of gzip.NewReader"

[giuseppe]

this can be closed as of #393

[boaz0]

Thanks @gouyang and @giuseppe