HealthCheck on helmRelease for customResource

[utsav4214]

Hi All ,

We have a scenario in which helmchart deploys CustomResource (CR), lets say mddf and that mddf CR deploys pods. In case there is an issue with CR then it doesn't deploy respective pods.
Now when same helmchart is getting deployed with flux, it passes the deployment irrespective of CR health and if pods deployed or not , maybe because pods are managed by CR and as a deployment flux only cares about CR deployment but it still passes the deployment even if CR is in failed state.

To handle this , we thought of adding healthCheck on helmrelease itself for this CR but it seems flux doesn't support helmrelease based healthchecks and only support in kustomization.

Request you all to please suggest , how to handle this with flux so that healthcheck on CR could be added for the helmrelease and flux only considers it as passed if healthcheck is passed that means CR is in Passed state.

Regards,
Utsav

[matheuscscp]

Is your Flux HelmRelease being deployed by a Flux Kustomization? If yes, you can use the Flux Kustomization field spec.healthCheckExprs to write custom logic in CEL for assessing the health of each CR type, then use spec.healthChecks to list each object whose health must be assessed:

https://fluxcd.io/flux/components/kustomize/kustomizations/#health-checks

https://fluxcd.io/flux/components/kustomize/kustomizations/#health-check-expressions

https://fluxcd.io/flux/cheatsheets/cel-healthchecks/

https://playcel.undistro.io/

Remember: spec.healthChecks is for objects, spec.healthCheckExprs is for types.

And because it's the Helm chart that will deploy the CRs, you will have to list not only the CRs in spec.healthChecks but also the Flux HelmRelease itself.

[utsav4214]

Hi @matheuscscp ,

I am not directly deploying HelmRelease with flux kustomization that is why unable to add healthcheck on kustomization. I have structure in which multiple helmReleases are grouped under single kustomization and if I put helmthcheck under that then will become applicable for all helmreleases.

Hence would appreciate if there can be any possible solution/way to handle this or should I wait until flux provides healthchecks directly for HelmRelease flux manifest

[matheuscscp]

Please open an issue with a feature request

[utsav4214]

Somebody has already raised thsi as feature request - #5178 Hence I have not duplicated it.

[matheuscscp]

Duplicate of #5178