[Plugin: Google App Engine for WordPress] functing app.yaml

Removing the $ at the end of the upload line(s) should make it work.

So for example change:

upload: wordpress/.*\.(htm|html|css|js)$

to

upload: wordpress/.*\.(htm|html|css|js)

Thanks I tried that. I also had to modify the handlers as I want wordpress to run in the webroot not a /wordpress/ subfolder.

I’ve gotten the app to upload but still not sure I have all the handlers correct. Would you mind sharing your handler definitions from a working app.yaml?

If by running from the webroot you mean that you don’t see an extra /wordpress/ in the url on your browser then you can use the yaml below:

application: your-application-id
version: wp
runtime: php
api_version: 1

handlers:
- url: /(.*\.(htm|html|css|js))$
  static_files: wordpress/\1
  upload: wordpress/.*\.(htm|html|css|js)
  application_readable: true

- url: /wp-content/(.*\.(ico|jpg|png|gif))$
  static_files: wordpress/wp-content/\1
  upload: wordpress/wp-content/.*\.(ico|jpg|png|gif)
  application_readable: true

- url: /(.*\.(ico|jpg|png|gif))$
  static_files: wordpress/\1
  upload: wordpress/.*\.(ico|jpg|png|gif)

- url: /wp-admin/(.+)
  script: wordpress/wp-admin/\1
  secure: always

- url: /wp-admin/
  script: wordpress/wp-admin/index.php
  secure: always

- url: /wp-login.php
  script: wordpress/wp-login.php
  secure: always

- url: /wp-cron.php
  script: wordpress/wp-cron.php
  login: admin

- url: /xmlrpc.php
  script: wordpress/xmlrpc.php

- url: /wp-(.+).php
  script: wordpress/wp-\1.php

- url: /(.+)?/?
  script: wordpress/index.php

This is exactly the app.yaml from https://developers.google.com/appengine/articles/wordpress
but with the trailing $ removed from (just) the upload lines.

For me this works as a charm.

If I use those handlers, I get a blank page on appspot.com & 404 errors in the app logs

handlers:
- url: /(.*\.(htm|html|css|js))$
  static_files: wordpress/\1
  upload: wordpress/.*\.(htm|html|css|js)
  application_readable: true

- url: /wp-content/(.*\.(ico|jpg|png|gif))$
  static_files: wordpress/wp-content/\1
  upload: wordpress/wp-content/.*\.(ico|jpg|png|gif)
  application_readable: true

- url: /(.*\.(ico|jpg|png|gif))$
  static_files: wordpress/\1
  upload: wordpress/.*\.(ico|jpg|png|gif)

- url: /wp-admin/(.+)
  script: wordpress/wp-admin/\1
  secure: always

- url: /wp-admin/
  script: wordpress/wp-admin/index.php
  secure: always

- url: /wp-login.php
  script: wordpress/wp-login.php
  secure: always

- url: /wp-cron.php
  script: wordpress/wp-cron.php
  login: admin

- url: /xmlrpc.php
  script: wordpress/xmlrpc.php

- url: /wp-(.+).php
  script: wordpress/wp-\1.php

- url: /(.+)?/?
  script: wordpress/index.php

On the other hand if I use these handlers I get the
Error establishing a database connection

handlers:
- url: /(.*\.(htm|html|css|js))$
  static_files: wordpress/\1
  upload: /.*\.(htm|html|css|js)
  application_readable: true

- url: /wp-content/(.*\.(ico|jpg|png|gif))$
  static_files: /wp-content/\1
  upload: /wp-content/.*\.(ico|jpg|png|gif)
  application_readable: true

- url: /(.*\.(ico|jpg|png|gif))$
  static_files: /\1
  upload: /.*\.(ico|jpg|png|gif)

- url: /wp-admin/(.+)
  script: /wp-admin/\1
  secure: always

- url: /wp-admin/
  script: /wp-admin/index.php
  secure: always

- url: /wp-login.php
  script: /wp-login.php
  secure: always

- url: /wp-cron.php
  script: wp-cron.php
  login: admin

- url: /xmlrpc.php
  script: xmlrpc.php

- url: /wp-(.+).php
  script: wp-\1.php

- url: /(.+)?/?
  script: index.php

I suspect that you don’t have wordpress in a subfolder wordpress inside your app folder.
Because of that wordpress could have an issue finding the wp-config.php

Correct, I’m trying to get WordPress to run my projects appspot.com root directory.

Did you have to make a changes to the wp-config to get it to find your database besides supplying the dbname, user & password values?

You also need to set the correct host

define('DB_HOST', ':/cloudsql/your-app-id:sql');

Replace the your-app-id:sql with your own app-id and Cloud SQL instance name.

I’ve done that but with debug set to true the connection still fails for ‘user’@’localhost’ in wp-db.php line 1147

I copied the instance ID from the cloud sql summary page and the value
:/cloudsql/Project:Instance is displaying on the error page

I’m also able to connect to the db using the wordpress username & password using MySQL Workbench and have tried re-creating the database, user and password

You’re better off asking this question on stackoverflow using the tags [google-app-engine] and [php].

Resolving as this is not a plugin issue.