; To "run" a milestone service,
;  - assert that it is both started and ready
;  - that's it!
;
? <run-service <milestone ?m>> [
  <service-state <milestone $m> started>
  <service-state <milestone $m> ready>
  $log ! <log "-" { service: <milestone $m> state: up }>
  ?- <log "-" { service: <milestone $m> state: down }>
]