Monitoring & Metrics for Keycloak (tracker)

[teolemon]

Problem

### Tasks
- [ ] Add Matomo JS code to Keycloak
- [ ] Add Matomo specific events on key parts (eg 3rd party login…) so that we can have insights about what works and doesn't
- [ ] Is there a built-in Keycloak monitoring system in cases things explode ?

Part of

• #what c

[hangy]

Is there a built-in Keycloak monitoring system in cases things explode ?

There's some Prometheus monitoring for ProductOpener and it's infrastructure, right? Keycloak has built-in support for those metrics: https://www.keycloak.org/server/configuration-metrics