Isolated stacks

# .towbar/datastores/orders-postgres.datastore.yml
id: orders-postgres
name: Orders PostgreSQL
type: postgres
container:
  network: application
  networkAlias: orders-postgres
  resources:
    cpus: 1
    memory: 1g
secrets:
  runtime:
    - POSTGRES_USER
    - POSTGRES_DB
    - POSTGRES_PASSWORD
environments:
  production:
    server: 192.0.2.10

# .towbar/services/orders-api.service.yml
id: orders-api
name: Orders API
deployment:
  type: dockerfile
  context: .
  dockerfile: Dockerfile
container:
  port: 3000
  network: application
health:
  path: /health
environments:
  production:
    server: 192.0.2.10
secrets:
  runtime:
    - DATABASE_URL

# .towbar/datastores/billing-postgres.datastore.yml
id: billing-postgres
name: Billing PostgreSQL
type: postgres
container:
  network: application
  networkAlias: billing-postgres
  resources:
    cpus: 1
    memory: 1g
secrets:
  runtime:
    - POSTGRES_USER
    - POSTGRES_DB
    - POSTGRES_PASSWORD
environments:
  production:
    server: 192.0.2.11

# .towbar/services/billing-api.service.yml
id: billing-api
name: Billing API
deployment:
  type: dockerfile
  context: .
  dockerfile: Dockerfile
container:
  port: 3000
  network: application
health:
  path: /health
environments:
  production:
    server: 192.0.2.11
secrets:
  runtime:
    - DATABASE_URL