Focal: securedrop-app-code package held back by unattended-upgrades

[emkll]

Description

securedrop-app-code is not upgraded by unattended-upgrades due to a conffile conflct:

/var/log/unattended-upgrades/unattended-upgrades.log states

package has been backlisted due to conffile promts: [securedrop-app-code]

manual upgrade confirms
/var/www/securedrop/static/i/logo.png is set as a conffile, which means the package will not override what is served by the package

Steps to Reproduce

Please specify your environment if that is necessary to reproduce the bug (if in
doubt, include it).

Expected Behavior

securedrop-app-code should be upgraded

Actual Behavior

securedrop-app-code is not upgraded

Comments

We should add to the unattended-upgrades config:

Dpkg::Options "force-confdef";
Dpkg::Options "force-confold";

[zenmonkeykstop]

Reopening as per discussion, options should be formatted like:

Dpkg::Options  {
    "--force-confdef";
    "--force-confold";
};