Change region in new App Engine Flexible project

Question

I created a new App Engine Flexible Node.js project with a custom runtime (the dockerfile is just based on the node app engine image for now). The first time I deployed it I could select a region and had chosen for EU. But I now get this error because the flexible runtime is not yet available in Europe:

ERROR: (gcloud.app.deploy) INVALID_ARGUMENT: Flexible Environment deployments are not supported in the apps region 'europe-west'.

I'm now trying to change my region, but I have no idea where I can do that. I did gcloud init again and had chosen for us-west1. In ~/.config/gcloud/configurations/config_default I can see that the zone is 'us-west1-b' and the region is 'us-west1'.

But after a new gcloud app deploy I get the same error. Where is the region stored? How can I change it without removing the project.

Answer 1

The selection of a GAE project region is typically done at app creation time, not deployment time, see App Engine - How to create project in region us-central.

But check the comment to that post - it seems it's possible to deploy before selecting the location - I suspect you either actually deployed in a default non-EU location or you didn't deploy a flexible environment app.

Yes, it is possible to change the environment of an app (actually an app's service/module, to be technically correct) from standard to flexible and viceversa at deployment time, depending on the code being deployed.

The region cannot be changed after its initial selection, see Change GAE application location