Extends Parapet.SLO.StarterPack.WebSaaS with Mailglass and Chimeway delivery SLO slices.
Register in one line:
config :parapet, providers: [Parapet.SLO.StarterPack.DeliverySaaS]This pack composes the three WebSaaS slices (HTTP availability, login journey, Oban job success) with the full Mailglass and Chimeway delivery catalogs, giving delivery-sending teams a coherent first set of SLOs without any hand-written PromQL.
Conditional Registration
Delivery slices are registered only when the corresponding host library is loaded. If Mailglass is not installed in the host application, Mailglass slices are omitted cleanly — no error, no dead alert rules. Same for Chimeway. Each guard is independent: a team using only Mailglass (without Chimeway) gets WebSaaS + Mailglass slices only.
The module itself is always loadable and fully documented regardless of which host
libraries are present, so mix verify.public_api always passes.
Stable
This module is stable as of v1.0.0. Its public API will not change without a major-version bump and a full deprecation cycle. See Stability & Deprecation Policy for details.
Slices (when all host libs present)
- 3 slices from
Parapet.SLO.StarterPack.WebSaaS(HTTP availability, login journey, Oban job success) - 4 slices from
Parapet.SLO.MailglassDelivery(submit acceptance, confirmed delivery, webhook freshness, suppression drift) - 3 slices from
Parapet.SLO.ChimewayDelivery(provider acceptance, callback confirmation, callback freshness)
Total: 10 slices when both Mailglass and Chimeway host libraries are loaded.
Summary
Functions
Returns the composite SLO slice list: WebSaaS slices plus any loaded delivery slices.
In production, delivery slices are included only when the corresponding host library
(Mailglass or Chimeway) is loaded. When a host library is absent, its slices are
omitted cleanly with no error. Register this provider via
config :parapet, providers: [Parapet.SLO.StarterPack.DeliverySaaS].