x-web: &web
  proxy: {}

service: app
image: dhh/app
servers:
  web_chicago:
    <<: *web
    hosts:
      - 1.1.1.1
      - 1.1.1.2
  web_tokyo:
    <<: *web
    hosts:
      - 1.1.1.3
      - 1.1.1.4
env:
  REDIS_URL: redis://x/y
registry:
  server: registry.digitalocean.com
  username: user
  password: pw
builder:
  arch: amd64
primary_role: web_tokyo