healthStatus

The health status of the instances that you want to discover. This parameter is ignored for services that don't have a health check configured, and all instances are returned.

HEALTHY

Returns healthy instances.

UNHEALTHY

Returns unhealthy instances.

ALL

Returns all instances.

HEALTHY_OR_ELSE_ALL

Returns healthy instances, unless none are reporting a healthy state. In that case, return all instances. This is also called failing open.