docker-dpkg-reconfigure

root@d1-ubuntu-nimbus /v/w/h/wordpress# env DEBIAN_FRONTEND=interactive dpkg-reconfigure mysql-server
debconf: unable to initialize frontend: Interactive
debconf: (Can't locate Debconf/FrontEnd/Interactive.pm in @INC (you may need to install the Debconf::FrontEnd::Interactive module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.22.1 /usr/local/share/perl/5.22.1 /usr/lib/x86_64-linux-gnu/perl5/5.22 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.22 /usr/share/perl/5.22 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base .) at (eval 18) line 2.)
debconf: falling back to frontend: Noninteractive