I'm hitting a http 500 error, I'd like to log or view the actual PHP error causing this issue.
How can I enable the log? I've looked around for a php.ini file but it does not seem to be present?
The specific image I'm using is php:7.1-fpm-stretch
You may add your own .ini files in this path on the container:
/usr/local/etc/php/conf.d
This path is indicated in the response to the php --ini command which you can run in a shell inside your container.
You will have to restart the web server (i.e. the container) for your changes to take effect.