Nginx dynamic document root folder and sub-domain configuration

nginx-cert.sh

#!/bin/sh

# Self signed certificate for Nginx HTTPS
#

openssl req -x509 -nodes -days 1825 -newkey rsa:2048 -keyout /etc/nginx/ssl/my-domain.key -out /etc/nginx/ssl/my-domain.crt

nginx-my-domain.conf

server {
    listen 80;

    listen 443 ssl;
    ssl_certificate /etc/nginx/ssl/my-domain.crt;
    ssl_certificate_key /etc/nginx/ssl/my-domain.key;

    server_name my-domain.com;
    rewrite ^(.*) http://www.my-domain.com$1 permanent;
}

server {
    listen 80;

    listen 443 ssl;
    ssl_certificate /etc/nginx/ssl/my-domain.crt;
    ssl_certificate_key /etc/nginx/ssl/my-domain.key;

    server_name ~^(.*)\.my-domain\.com$;
    set $subdomain $1;
    set $baseroot "/home/my-domain/sites";
    set $docroot "";

    if (-d "${baseroot}/${subdomain}/webroot") {
        set $docroot "/webroot";
    }
    if (-d "${baseroot}/${subdomain}/public") {
        set $docroot "/public";
    }
    if (-d "${baseroot}/${subdomain}/public_html") {
        set $docroot "/public_html";
    }
    
    root "${baseroot}/${subdomain}${docroot}";
    index index.html index.htm index.php;
    autoindex on;

    error_log /var/log/nginx/my-domain-error.log error;
    access_log /var/log/nginx/my-domain-access.log;

    location ~* \.(jpg|jpeg|gif|png|css|js|ico)$ {
        access_log        off;
        log_not_found     off;
    }

    location / {
        try_files $uri $uri/ /index.php?$args;
    }

    include alias.d/*.conf;
    
    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_pass unix:/var/run/php-fpm/my-domain.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    location ~ /\. {
        access_log        off;
        log_not_found     off;
        deny all;
    }
}

nginx-phpMyAdmin.conf

location ^~ /phpMyAdmin {

    #allow 203.128.67.2;
    #deny all;

    if ($scheme = 'http') {
        rewrite ^ https://$http_host$request_uri? permanent;
    }

    # Assuming /home/website/phpMyAdmin is exists
    root /home/website;
    index index.php;
    access_log off;

    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_pass unix:/var/run/php-fpm/my-domain.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
}