app.yaml

service: <service name> # speficy service name; 'default' if not specified
runtime: custom
env: flex

automatic_scaling:
  min_num_instances: 1
  max_num_instances: 2

resources:
  cpu: 1
  memory_gb: 1
  disk_size_gb: 10

liveness_check:
  path: /api/health
  timeout_sec: 3
  check_interval_sec: 30
  failure_threshold: 3
  initial_delay_sec: 300

readiness_check:
  path: /api/health
  timeout_sec: 3
  check_interval_sec: 5
  failure_threshold: 3
  success_threshold: 1
  app_start_timeout_sec: 300

env_variables:
  MB_JETTY_PORT: 8080
  MB_DB_TYPE: postgres
  MB_DB_DBNAME: <db name> # speficy DB name
  MB_DB_PORT: 5432
  MB_DB_USER: <db user> # specify DB user
  MB_DB_PASS: <db pass> # specify DB password
  MB_DB_HOST: 127.0.0.1
  MB_SQL_INSTANCE: <db instance name> # specify DB instance name; ref. https://cloud.google.com/sql/docs/postgres/instance-info
  JAVA_TIMEZONE: <tz name> # speficy timezone for reports; ref. https://en.wikipedia.org/wiki/List_of_tz_database_time_zones