Error deploying java google app engine flexible application - Timed out waiting for the app infrastructure to become healthy

Question

Writing this issue as I have no idea how to investigate it.

We're having problems in deploying an app engine flexible application. The problem is, that the only error we get is the following:

GCLOUD: ERROR: (gcloud.app.deploy) Error Response: [4] Timed out waiting for the app infrastructure to become healthy.

I tried already the following:

• Try a simple helloWorld app, to make sure it's not an application issue
• Check quota settings -> All green
• Check activity stream for warnings or errors
• Check logs for warngings or errors
• Grant owner role to service account which is deploying the app

App.yaml:

service: test-service # Id of the service
env: flex       # Flex environment
runtime: java   # Java runtime
runtime_config:
  jdk: openjdk8 # use OpenJDK 8
resources:
  cpu: 1
  memory_gb: 2.8

gcloud version

Google Cloud SDK 214.0.0 alpha 2018.08.24 
app-engine-java 1.9.64
app-engine-python 1.9.74 beta 2018.08.24 bq 2.0.34
cloud-datastore-emulator 2.0.2 
core 2018.08.24 
gsutil 4.33 
kubectl 2018.08.24 
pubsub-emulator 2018.08.24

Answer 1

After contacting the google technical support, we found out, that the default app engine service account didn't have the Editor role. After assigning the editor role the deployment worked again.