[Pkg-utopia-maintainers] Bug#845126: firewalld: Please merge configuration during upgrade

[James Valleroy]

Package: firewalld
Severity: wishlist

Dear Maintainer,

firewalld is being used in FreedomBox, but currently is confusing to
upgrade due to a conffile prompt. This was reported here:
http://lists.alioth.debian.org/pipermail/freedombox-discuss/2016-November/007694.html

FreedomBox uses this script to configure firewalld:
https://github.com/freedombox/Plinth/blob/master/data/usr/lib/freedombox/first-run.d/90_firewall
When we run "firewall-cmd --set-default-zone=external", firewalld
modifies /etc/firewalld/firewalld.conf.

However, /etc/firewalld/firewalld.conf is a conffile, and if there are
any changes to this file in a new firewalld package, then it causes the
conffile prompt during upgrade, with no easy way to merge our
configuration with the changes in the new package. This also prevents
unattended-upgrades from upgrading the package automatically.

Please consider using ucf or a similar tool to merge the configuration
during upgrade.

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