Example PHP-FPM 7.3 & Nginx 1.16 setup for Docker, build on Alpine Linux. The image is only +/- 35MB large.

• Built on the lightweight and secure Alpine Linux distribution
• Very small Docker image size (+/-35MB)
• Uses PHP 7.3 for better performance, lower cpu usage & memory footprint
• Optimized for 100 concurrent users
• Optimized to only use resources when there's traffic (by using PHP-FPM's ondemand PM)
• The servers Nginx, PHP-FPM and supervisord run under a non-privileged user (nobody) to make it more secure
• The logs of all the services are redirected to the output of the Docker container (visible with docker logs -f <container name>)
• Follows the KISS principle (Keep It Simple, Stupid) to make it easy to understand and adjust the image

Start the Docker container:

docker-compose up

See the PHP info on http://localhost, or the static html page on http://localhost/test.html