quay.io ACI converter doesn't work for arm64 images

[Geoff Levand]

Hi,

The quay.io ACI converter doesn't seem to work for arm64 images. Here
is the error:

$ sudo rkt --debug fetch quay.io/coreos/etcd:v3.2.0-rc.1-arm64
image: searching for app image quay.io/coreos/etcd
image: remote fetching from URL "https://quay.io/c1/aci/quay.io/coreos/etcd/v3.2.0-rc.1-arm64/aci/linux/aarch64/"
image: fetching image from https://quay.io/c1/aci/quay.io/coreos/etcd/v3.2.0-rc.1-arm64/aci/linux/aarch64/
image: keys already exist for prefix "quay.io/coreos/etcd", not fetching again
image: downloading signature from https://quay.io/c1/aci/quay.io/coreos/etcd/v3.2.0-rc.1-arm64/aci.asc/linux/aarch64/
fetch:
└─error downloading the signature file
└─bad HTTP status code: 404

This needs to work for standard utilities and test programs to work
properly on arm64 platforms. As an example, rkt's TestFetchAny
functional test fails on arm64 because of this.

See https://github.com/rkt/rkt/blob/master/tests/rkt_fetch_test.go#L93.

-Geoff

[Brandon Philips]

My preference: we skip those tests on new platforms like ARM as appc is no longer actively developed: https://github.com/appc/spec#-disclaimer-