Map health checks

[jzaefferer]

This is a bit more complicated. Durations needs to be mapped to seconds, the test property needs to be restricted to something mappable.

docker-compose.yml sample:

healthcheck:
  test: ["CMD", "curl", "-f", "http://localhost"]
  interval: 1m30s
  timeout: 10s
  retries: 3
  start_period: 40s

sloppy.yml sample:

healthchecks:
- timeout: 10
  interval: 10
  max_consecutive_failures: 3
  path: "/"
  type: "HTTP"
  grace_period_seconds: 3

• interval as duration to interval in seconds
• timeout as duration to timeout in seconds
• start_period as duration to grace_period_seconds in seconds
• retries to max_consecutive_failures (I guess)
• test somehow to type and, optionally, path

sloppy.io health checks can be of type: "HTTP", along with a path property, or type: "TCP", without an additional property.

A potential heuristic: Check if test contains a URL and use the path (if none, use /) for a HTTP type check. If there is no URL, use TCP.

This

healthcheck:
  test: ["CMD", "curl", "-f", "http://localhost"]

would map to

health_checks:
  - type: "HTTP"
    path: "/"

See https://docs.docker.com/compose/compose-file/#healthcheck and https://kb.sloppy.io/features/health-checks

Definitely lower priority than everything else.