[Merge] lp:~mvo/ubuntu-archive-publishing/sync-cnf-metadata into lp:ubuntu-archive-publishing

[Colin Watson]

Firewall rules: https://code.launchpad.net/~cjwatson/canonical-is-firewalls/+git/firewall-configs/+merge/363371
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https://code.launchpad.net/~mvo/ubuntu-archive-publishing/sync-cnf-metadata/+merge/356117
Your team Ubuntu Package Archive Administrators is requested to review the proposed merge of lp:~mvo/ubuntu-archive-publishing/sync-cnf-metadata into lp:ubuntu-archive-publishing.