How can specific rules and alarms be set for a Service?
PagerDuty default is working with Service Builder services and binding the Service to PagerDuty. However, it is possible to drill down into the settings and configuration and create a Service in Service Builder to accommodate specific rules, alarms, hosts and other Foglight available components.
Create a Foglight Service Category which will contains the specific objects desired (e.g., Hosts), and define the alarms to be included in the service by the Alarm filter of the created Foglight Service Category.
Then use the new Service created within PagerDuty dashboard.
Here is an example of the steps how to create a Foglight Service Category.