Add frontend support for cluster health alerts

Merged Adriel Santiago requested to merge 5456-add-cluster-health-alert-frontend into master

What does this MR do?

Adds frontend support for cluster health alerts. Changes are behind the prometheus_computed_alerts feature flag

Before After
before after

CE Backport

Related Issues

Local Testing

Enable the changes by enabling the prometheus_computed_alerts feature flag:

bin/rails c
Feature.enable(:prometheus_computed_alerts)

Does this MR meet the acceptance criteria?

Conformity

Performance and testing

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

  • Label as security and @ mention @gitlab-com/gl-security/appsec
  • The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
  • Security reports checked/validated by a reviewer from the AppSec team
Edited by Adriel Santiago