Hello Eduardo,
If I understand the issue correctly, when you are changing the app.yaml file to change the scaling type <https://cloud.google.com/appengine/docs/standard/python/how-instances-are-managed#scaling_types> from dynamic, it starts to give the error. Is my understanding correct? Could you please confirm if you are using this serverless VPC access <https://cloud.google.com/vpc/docs/serverless-vpc-access#supported_services> ? Internally, I didn't see anything reported related to this.Please note, Google Group is intended to provide general information about the Google Cloud Platform. If you believe this issue is related to the product, I would recommend that you open a private issue <https://cloud.google.com/support/docs/issue-trackers> and provide more details with the error logs so that we can investigate this further. I hope it will be helpful. On Tuesday, March 29, 2022 at 9:45:36 AM UTC-4 eduardo....@versia.com wrote: > Hello, > > Migrating from dynamic instances in Java11 GAE to manual/basic instances > results in 403 error when Google services (from IP 0.1.0.3) performs a > "/_ah/start" request. > > App Engine is configured with Private Service Access and is only > accessible from the VPC and specific IP's. No firewall rules apply because > it's an internal request from Google but rules were configured for testing > purposes. Either in manual or basic mode the result is the same, if we roll > back to the dynamic mode it works fine. > > Does anyone with a similar problem? Thank you in advance. > > Eduardo Moraleja > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/e20f282f-e319-41ab-bcaa-d7752af97483n%40googlegroups.com.