sudo -u my_user /bin/bash -l -c 'bundle exec ...'
SHELL=/bin/sh
PATH=/home/deployer/.rbenv/bin:/home/deployer/.rbenv/bin:/home/deployer/.rbenv/bin:/home/deployer/.rbenv/bin:/home/deployer/.rbenv/bin:/home/deployer/.rbenv/shims:/home/deployer/.rbenv/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
cd /home/deployer/scum_cleaner/current && RAILS_ENV=production bundle exec rake kill:all_gays