leftypol/docker/doc.md

The php-fpm process runs containerized. The php application always uses /var/www as it's work directory and home folder, and if /var/www is bind mounted it is necessary to adjust the path passed via FastCGI to php-fpm by changing the root directory to /var/www. This can achieved in nginx by setting the fastcgi_param SCRIPT_FILENAME to /var/www/$fastcgi_script_name;

The default docker compose settings are intended for development and testing purposes. The folder structure expected by compose is as follows

<vichan-project>
└── local-instances
    └── 1
        ├── mysql
        └── www

The vichan container is by itself much less rigid.