Limiting hosts
You can limit hosts to run a playbook through configuring the meta data in an event’s data. The limiting hosts must be a subset of the hosts (inventory) selected in the rules file.
Event data example:
{
"i": 0,
"meta": {"hosts": "localhost"}
}
The value for “hosts” can be a comma delimited string of multiple host names, but typically it is a single host. This is useful to restrict a remedy playbook to run only on the problematical host that emits a monitored event. Be sure that the source plugin already sends this metadata.