Following http://thepugautomatic.com/2016/01/static-sites-alongside-dokku-on-digital-ocean/

deploy_frontend_to_dokku.bash

#!/usr/bin/env bash

first_run=${first_run:-false}
host=${host:-domain.com}
conf=${conf:-'static_sites.conf'}
ssh_cmd=${ssh_cmd:-'ssh}'
curr_user=${curr_user:-'dokku'}
new_user=${new_user:-'static'}

if [ ! -z "$new_pass" ]; then
    new_pass=":$new_pass"
fi

function first_run_f () {
    # eval "$ssh_cmd $curr_user@$host \"sudo adduser $new_user\""
    eval "$ssh_cmd $curr_user@$host 'sudo touch /etc/nginx/conf.d/static_sites.conf && sudo chown static:static /etc/nginx/conf.d/static_sites.conf'"
    rsync -e "$ssh_cmd" -azP "$conf" "${new_user}${new_pass}@${host}":/etc/nginx/conf.d/static_sites.conf
    eval "$ssh_cmd $host sudo service nginx restart"
}

if $first_run; then
    first_run_f
fi

rsync -e "$ssh_cmd" -azP web-frontend "${new_user}${new_pass}@${host}":/tmp
#/home/static/sites/web-frontend