An ubuntu 16.04 box (from phusion/baseimage) with nginx, php-fpm, wp-cli (plus a wrapper that enables wp-cli as root) and certbot installed. GitHub: Dockerfile
docker pull revoltmedia/ubuntu
Eventually options will be added to change the versions and which packages are installed.
software-properties-common bash sudo nano curl nginx php7.0-fpm php7.0-mysql php7.0-curl php7.0-gd php7.0-intl php-pear php-imagick php7.0-imap php7.0-mcrypt php-memcache php7.0-pspell php7.0-recode php7.0-sqlite3 php7.0-tidy php7.0-xmlrpc php7.0-xsl php7.0-mbstring php-gettext php-apcu certbot wp-cli