app.yaml

runtime: php
env: flex

runtime_config:
  document_root: public

# Ensure we skip ".env", which is only for local development
skip_files:
  - .env

env_variables:
  # Put production environment variables here.
  APP_LOG: errorlog
  APP_KEY: example_key_1234
  STORAGE_DIR: /tmp    
  CACHE_DRIVER: database
  SESSION_DRIVER: database
  ## Set these environment variables according to your CloudSQL configuration.
  DB_HOST: localhost
  DB_DATABASE: laravel
  DB_USERNAME: root
  DB_PASSWORD: YOUR_DB_PASSWORD
  DB_SOCKET: "/cloudsql/YOUR_CLOUDSQL_CONNECTION_NAME"

CACHE_DRIVER: database
  SESSION_DRIVER: database
  ## Set these environment variables according to your CloudSQL configuration.
  DB_HOST: localhost
  DB_DATABASE: laravel
  DB_USERNAME: root
  DB_PASSWORD: YOUR_DB_PASSWORD
  DB_SOCKET: "/cloudsql/YOUR_CLOUDSQL_CONNECTION_NAME"