Nginx phpmyadmin.conf file

phpmyadmin.conf

server {
         listen       443;
    ssl on;
    ssl_certificate /etc/nginx/ssl/server.crt;
    ssl_certificate_key /etc/nginx/ssl/server.key;

        server_name phpmyadmin.example.loc;
        root /var/www/vhosts/pma/;
        index index.php;

        # set expiration of assets to MAX for caching
        location ~* \.(ico|css|js)(\?[0-9]+)?$ {
                expires max;
                log_not_found off;
        }


        location ~* \.php$ {
                fastcgi_pass 127.0.0.1:9000;
                fastcgi_index index.php;
                fastcgi_split_path_info ^(.+\.php)(.*)$;
                include fastcgi_params;
                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        }
}
-Make sure to put you root path
-Make sure YOU HAVE CREATED the config file of phpmyadmin
-if you don't want https just change the port to 80 and remove the ssl part 
ssl on;
sslcertificate /etc/nginx/ssl/server.crt;
sslcertificate_key /etc/nginx/ssl/server.key;