Self-hosting on Gandi | Questions about Strapi and MySQL

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4

I was also wondering do I need this mySQL index.js file that the documentation recommends?

https://docs.gandi.net/en/web_hosting/languages/nodejs.html#general-functioning

var http = require('http'),
    mysql = require('mysql');

var mysql_conn = mysql.createConnection({
  socketPath: '/srv/run/mysqld/mysqld.sock',
  database: 'default_db',
  user: 'root',
  password: ''
});

var test_mysql_conn = function(callback) {
  mysql_conn.connect(function(err) {
    if (err) {
      console.log(err.code);
      if (callback) callback("NOT WORKING");
    } else {
      console.log('connected...');
      if (callback) callback("OK");
    }
  });
  mysql_conn.end();
};

http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.write('Hello Node.js!\n');
  test_mysql_conn(function(mysql_status) {
    res.write('MySQL connection: ' + mysql_status + '\n');
    res.end();
  });
}).listen(process.env.PORT);