These will directly zap your php.ini file with the settings you want.
sudo sed -i "s/memory_limit = .*/memory_limit = 512M/" /etc/php/7.1/fpm/php.ini
sudo sed -i "s/upload_max_filesize = .*/upload_max_filesize = 100M/" /etc/php/7.1/fpm/php.ini
sudo sed -i "s/post_max_size = .*/post_max_size = 100M/" /etc/php/7.1/fpm/php.ini
Then, we need to set a proper client_max_body_size in the nginx.config file:
sudo nano /etc/nginx/nginx.conf
and add
client_max_body_size 100m;
within the http {} block.
To restart nginx and php:
sudo service nginx restart
sudo service php7.1-fpm restart
Ok, but here's the thing - the nginx.conf edit done above doesn't seem to take unfortunately. So, what you'll have to do is go to your site directly and edit the config file there. To do this, first cd to the proper folder:
cd /etc/nginx/sites-available/
From there, sudo nano your project's .app file and add
client_max_body_size 1000m
inside the server {} block. That should do you just fine.
I found this a little strange that while everything has been very elegant while using Homestead - I wasn't able to easily set my upload_max_filesize and post_max_size settings. Would have figured it would be configuarble in the yaml file. Anyways - just ssh into you box and run these commands. In the future you may need to may need to adjust the paths or whatever (if something like the PHP version changes).