fix grafana dashboard for keycloak 23.0.7 / keycloak-spi-metrics 5.0.0

[ptrovatelli]

What

• Put grafana dashboard under version control
• Fix dashboard for keycloak 23.0.7 / keycloak-metrics-spi 5.0.0

Changes:

• switch from graph (angular js deprecated) to timeseries in several widgets
• in widget and in variables, fix field names : usually needed to add total :
  • keycloak_logins -> keycloak_logins_total
  • keycloak_response_errors -> keycloak_response_errors_total
  • keycloak_registrations -> keycloak_registrations_total
  • keycloak_failed_login_attempts -> keycloak_failed_login_attempts_total
  • keycloak_registrations_errors -> keycloak_registrations_errors_total
  • ...
• in widgets, update description to state it's for all instances when there is no instance filter

Checklist

I had to manipulate a little bit the dashboard before publishing it as we have specificities that I needed to strip out. Consequently the version I pushed here is not 100% error proof.

Additional Notes

On openshift, replace kubernetes_pod_name by pod_names