Notifications - how to inform when health degraded application returned to healthy

[luciano-buono]

Hi, I have a need for the following workflow:

An application is deployed succesfully and is on-sync and healthy.
Then, for X reason, a pod enters into a CrashLoopBackoff and the Application health goes into Progressing for 10mins.
As the error persist, the health state goes into degraded.

Sometimes the error could be a commit with an incorrent image tag so kubernetes can't find the image to pull.
So, in the next commit this is fixed and the application health goes into healthy.

---

I need to trigger a notification when the application health goes into degraded, easy to do with the trigger:

trigger.on-health-degraded: |
  - description: Application has degraded
    send:
    - app-health-degraded
    when: app.status.health.status == 'Degraded'

but then I need a way to know when the issue was resolved.
A trigger of the like
when: app.status.health.status == 'Healthy'

would send a notification all time the status goes from progressing to healthy so it would spam the channel with useless info, not only informing that an error was resolved

So I would need a way of adding oncePer that tracks if it was in degraded before

Any help?

[AekarinOngart]

Did you found any solution? I also want to add oncePer on this trigger.