downstream: Include GPG signature in delta from 7.20170209

[cgwalters]

See ostreedev/ostree#748

[cgwalters]

TL;DR, it should work to:

ostree --repo=repo static-delta generate --from d433342b09673c9c4d75ff6eef50a447e73a7541491e5197e1dde14147b164b8 --to 841fae51e5b68716a9996ddbdb4e543855bbfab9c6e4cb433267b24e41e8bbc1
ostree --repo=repo summary -u

[cgwalters]

It worked for me to upgrade from d433342b09673c9c4d75ff6eef50a447e73a7541491e5197e1dde14147b164b8 (7.20170209) ➡️ 91fe03fef75652f68a9974261b391faaeb5bd20f33abf09bb1d45511ba2df04e (7.20170405).

Closing, but please reopen/comment if you see other issues.

[cgwalters]

Actually, I think we have the same problem again:

# rpm-ostree status
State: idle
Deployments:
● centos-atomic-host:centos-atomic-host/7/x86_64/standard
       Version: 7.20170309 (2017-03-13 21:18:01)
        Commit: 841fae51e5b68716a9996ddbdb4e543855bbfab9c6e4cb433267b24e41e8bbc1
        OSName: centos-atomic-host
  GPGSignature: 1 signature
                Signature made Tue 14 Mar 2017 12:37:40 AM UTC using RSA key ID F17E745691BA8335
                Good signature from "CentOS Atomic SIG <security@centos.org>"
-bash-4.2# rpm-ostree upgrade
Updating from: centos-atomic-host:centos-atomic-host/7/x86_64/standard
error: No detached metadata found for GPG verification

There is a GPG signature, but not in the delta. So we need to regenerate the delta.

[cgwalters]

It does work to upgrade from d433342b09673c9c4d75ff6eef50a447e73a7541491e5197e1dde14147b164b8 because there's no delta.

[jasonbrooks]

@kbsingh and I will fix this, but interestingly, I was still able to sudo atomic host deploy 7.20170405 on a system where upgrade wasn't working.