Dynamic config loading for gatus

[rouke-broersma]

Would you be interested in making the gatus config loading dynamic? Many helm projects such as grafana use the kiwigrid config loader sidecar to dynamically load config from configmaps and secrets. I am planning to add this to my own gatus deployment. If you're interested I can contribute this here as an option.

[TwiN]

Gatus should support dynamic config loading (hot loading) out of the box

[rouke-broersma]

Gatus should support dynamic config loading (hot loading) out of the box

Yes gatus supports this but the Helm chart does not assist with this. What the kiwigrid sidecar does is watch a namespace for configmaps and secrets and place those in q specific folder within a volume. Combined with the composable dynamic configuration gatus itself already supports this would make it possible to deploy a new config map in the cluster for a new endpoint and this automatically being picked up by the sidecar, placed in the config dir and processed by gatus. I have already implemented this in my homelab.

See: https://github.com/broersma-forslund/homelab/blob/main/apps%2Fmonitoring%2Fgatus%2Fvalues.yaml

And how it's used: https://github.com/broersma-forslund/homelab/blob/main/apps%2Fcluster%2Fargocd%2Ftemplates%2Fgatus-monitoring-cm.yaml

It's a similar idea to prometheus operator ServiceMonitor but without needing an operator and CRDs.