Strapi +mysql deployment on google app engine

Hi Everyone,
I’d deployed my app on google app engine , but I got the following error
getaddrinfo EAI_AGAIN /cloudsql/instance_conection_name
Does I need some command thst works for mysql like npm install pg ?
This is my database config
module.exports = ({ env }) => ({
defaultConnection: ‘default’,
connections: {
default: {
connector: ‘bookshelf’,
settings: {
client: ‘mysql’,
host: /cloudsql/${env('INSTANCE_CONNECTION_NAME')},
database: env(‘DATABASE_NAME’),
username: env(‘DATABASE_USERNAME’),
password: env(‘DATABASE_PASSWORD’),
},
options: {},
},
},
});

Is something I need to change?
Thanks in advance

System Information
  • Strapi Version: 3.3.4
  • Operating System: Windows
  • Database: Mysql
  • Node Version: 12.18.3
  • NPM Version: 6.14.9