[google-cloud-sql-discuss] Error establishing a database connection when install wordpress on app engine

Hi

I have this issue when I tried to install wordpress to app engine Yesterday (2/11/2016)

I have followed all steps at https://googlecloudplatform.github.io/appengine-php-wordpress-starter-project/

And, everything local works well, and I can even deploy successfully, however, when I tried to install wordpress on app engine by

http://<project_id>.appspot.com/wp-admin/install.php

I get an error page saying 

"

Error establishing a database connection

This either means that the username and password information in your wp-config.php file is incorrect or we can't contact the database server at :/cloudsql/<project_id>:testsqlv1. This could mean your host's database server is down.

.....

"

where, testsqlv1 is my CloudSQL instance id. I tried 'wordpress' as the instruction says, not work either.

if I try http://<project_id>.appspot.com, I get page showing:

"

Error establishing a database connection

"

I first tried second gen, and then first gen, none works for me.

I have app.yaml modified with <project_id> at the first line of the file

like this:

application: myprojectid

version: wpfromstarterproject

runtime: php55

api_version: 1

...

my wp-config.php is like this:

...

// ** MySQL settings - You can get this info from your web host ** //

/** The name of the database for WordPress */

define('DB_NAME', 'wp_wordpress');

// since my Cloud SQL instance id is "wordpress", so instance is: is wordpress here !

if(isset($_SERVER['SERVER_SOFTWARE']) && strpos($_SERVER['SERVER_SOFTWARE'],'Google App Engine') !== false) {

  define('DB_HOST', ':/cloudsql/myprojectid:testsqlv1');

  /** MySQL database username */

define('DB_USER', 'root');

/** MySQL database password */

define('DB_PASSWORD', '');

}else{

  define('DB_HOST', 'localhost');

/** MySQL database username */

define('DB_USER', 'myusername');

/** MySQL database password */

define('DB_PASSWORD', 'mypassword');

...

and I have create wp_wordpress through mysql client and instance ip

Can anyone help me on this issue?

Thanks a lot in advance

Hai

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