manifest: unable to create from oci path

[terinjokes]

Description

I'm unable to create a manifest list from an OCI path created by buildah.

Steps to reproduce the issue:

$ buildah manifest create --all my-list docker-archive:./save1.tar.gz docker-archive:./save2.tar.gz
47eca6eb64ff422a846eafc11f4370a450f896674cc75c5b3209311969728839

$ buildah manifest inspect my-list
{
    "schemaVersion": 2,
    "mediaType": "application/vnd.docker.distribution.manifest.list.v2+json",
    "manifests": [
        {
            "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
            "size": 1573,
            "digest": "sha256:da4598a9bf14f0352c4c56518d40e02be88ea0304afd4b4fe67175e842a2ee99",
            "platform": {
                "architecture": "amd64",
                "os": "linux"
            }
        },
        {
            "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
            "size": 1081,
            "digest": "sha256:2cd11cdae3be614099e7f412cc55d9df5af14163fe592ed4285ce4687871deb0",
            "platform": {
                "architecture": "arm64",
                "os": "linux"
            }
        }
    ]
}

$ buildah manifest push --all --format v2s2 --purge my-list oci:list

$ buildah manifest create --all oci:list
error encountered while expanding image name "oci:list": error parsing name "list:": invalid reference format

Describe the results you received:

Got an error message unable to import the list exported. I can see index.json points at a "application/vnd.docker.distribution.manifest.list.v2+json" like expected.

Describe the results you expected:

Buildah should be able to import manifests it creates, so I expected it to print an image hash.

Output of buildah version:

Version:         1.18.0
Go Version:      go1.15.6
Image Spec:      1.0.1-dev
Runtime Spec:    1.0.2-dev
CNI Spec:        0.4.0
libcni Version:  v0.7.2-0.20190904153231-83439463f784
image Version:   5.8.0
Git Commit:      unknown
Built:           Mon Dec 31 16:00:00 1979
OS/Arch:         linux/amd64

Output of cat /etc/*release:

PRETTY_NAME="Debian GNU/Linux 10 (buster)"
NAME="Debian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

Output of uname -a:

Linux penguin 5.4.58-07649-ge120df5deade #1 SMP PREEMPT Wed Aug 26 04:56:33 PDT 2020 x86_64 GNU/Linux

[terinjokes]

If you push while giving it a tag, it does re-import correctly.

$ buildah manifest push --all -f v2s2 --purge my-list oci:oci:latest

$ buildah manifest create --all my-list2 oci:oci
8fe16205d301946fcaa8691bdbe4fe5ea0ad52404e31d939603ae3cce3ccba29

If the tag is required, it should probably be enforced on exporting.

[rhatdan]

Since I have been playing with manifest I guess I will take this one.

[github-actions]

A friendly reminder that this issue had no activity for 30 days.

[rhatdan]

Could you check this against the current master branch, I believe it works now, reopen if I am mistaken.