This sample demonstrates how to use PostgreSql on Google App Engine standard Java 11

• Download and initialize the Cloud SDK

  gcloud init

• If this is your first time creating an App engine application:

   gcloud app create

• Setup Application Default Credentials

  gcloud auth application-default login

• Create an Instance

• Create a Database

• Create a User

• Note the Instance connection name under Overview > properties

Edit the app.yaml file and change the 4 env variables to match your environment:

env_variables:
  DB_INSTANCE: PROJECT:us-central1:instance
  DB_DATABASE: DBname
  DB_USER: postgres
  DB_PASSWORD: password

 mvn clean package appengine:deploy -Dapp.deploy.projectId=<your-project-id>

• Delete your Instance