An adapter translates events from incompatible systems and formats into a standardized event model. Separating event publishing from consumption lets a release API collect diverse events while consumers subscribe through one consistent interface. section 9.3.2
A platform can adapt TagCreated events from GitHub, ReleasedToProd events from CircleCI, deployment events from Kubernetes, and canary events from ArgoCD or Flagger. Standardized events then support consumer plugins for JIRA, ServiceNow, source control, CI/CD, and configuration management databases. section 9.3.2
Deployment events in observability
An observability consumer pushes deployment events into a metrics platform. When Team A’s HTTP errors rise after Team B releases version 1.2, correlated deployment data makes the likely upstream change visible, speeding diagnosis and reducing escalations. section 9.3.5
Figure 9.8 To consume the events in our release-api, we’ll need a pattern from the many systems that produce them.
Use the event-source diagram to trace why each producing system needs an adapter before events can enter the release API. section 9.3.2
