This image is based on Ubuntu 14.04. It contains an installation of Perlbrew (http://perlbrew.pl) with perl-5.20.1 in home directory of user "perl".
In addition, the Perl web framework Dancer is installed (http://perldancer.org). All prerequisites to get perlbrew up and running are installed as well. (curl, make, gcc). There's a script called "start" which starts the shell to run Perl with Perlbrew.