100% non-interactive Debian installations

[martinezlc99]

When installing the common-utils feature, the feature installation fails since apparently my base container configuration (in this case /etc/issue) would be modified and an interactive prompt causes the install to fail:

Configuration file '/etc/issue'
 ==> Modified (by you or by a script) since installation.
 ==> Package distributor has shipped an updated version.
   What would you like to do about it ?  Your options are:
    Y or I  : install the package maintainer's version
    N or O  : keep your currently-installed version
      D     : show the differences between the versions
      Z     : start a shell to examine the situation
 The default action is to keep your current version.

One option would be to use the following apt-get options when installing packages:

• -o Dpkg::Options::="--force-confdef" - use the default answer if a configuration file should be replaced.
• -o Dpkg::Options::="--force-confold" - use the old configuration file if a configuration file should be replaced. Just in case the --force-confdef doesn't work.

Note this happened to me using the common-utils features, but I would assume its not isolated to this feature.

Would a pull request be accepted for this?

[martinezlc99]

Just bumping to ask if a PR would be accepted. Or for any workarounds.