无法使用Google App Engine连接到Google Cloud MySQL

Question

1. I am trying to follow the steps from Getting Started using Cloud MySQL and PHP however I am still getting the SQL error below.

2. Steps I have done so far,

   a. Created a database in Google Cloud MySQL

   b. Created a user and a password,

My Connection Settings

Is there anything I am missing?

Answer 1

Make sure to open up the firewall on your Cloud SQL instance to allow your IP address to access it. For testing purposes, you can open it for all IP addresses by:

1. Navigating to your Database Instance
2. Clicking 'Edit'
3. Click 'Authorize Networks'
4. Click 'Add Network'
5. Type 0.0.0.0/0 to open up your database to all networks.

NOTE: You should only use that setting for initial testing as it will open up your instance to connections from any IP address. Once you verify that's the issue, remove that entry and create an entry for just the IP addresses you'll be connecting from.

Answer 2

From AppEngine Standard Environment you do not need an IP to connect to a First Generation Cloud MySQL instance. For PDO you can use as DSN:

mysql:unix_socket=/cloudsql/<your-project-id>:<your-mysql-instance-name>;dbname=<database-name>

Starting from AppEngine Flexible Environment or if you use a Second Generation Cloud MySQL you need to install cloud_sql_proxy - see https://cloud.google.com/appengine/docs/flexible/php/using-cloud-sql and/or https://cloud.google.com/appengine/docs/standard/php/cloud-sql/

If what you really want is to test locally with the Cloud SQL from Google Cloud you will also need the same cloud_sql_proxy .