Cluster-wide SleepInfo and namespace exclusion

[ams0]

For cluster with large number of namespaces, it would be more convenient to set a new CRD called ClusterSleepInfo that operates across all namespaces, with default exclusion of kube-system and option list of namespaces and resources to exclude:

apiVersion: kube-green.com/v1alpha1
kind: ClusterSleepInfo
metadata:
  name: working-hours
spec:
  weekdays: "1-5"
  sleepAt: "20:00"
  wakeUpAt: "08:00"
  timeZone: "Europe/Rome"
  suspendCronJobs: true
  excludeRef:
    - apiVersion: "apps/v1"
      kind:       Deployment
      name:       my-deployment
    - apiVersion: "v1"
      kind:       Namespace
      name:       my-namespace

I am aware of the implications here (controller needs access to every namespace) but it sounds like a good idea (at least to me!)

[davidebianchi]

Hi @ams0!
Definitely yes! It's already in the kube-green roadmap as a draft proposal.

For the excludeRef spec, maybe we could use some labels to specify if a namespace and/or a resource should be excluded.

[mimmus]

I'm currently using:
https://codeberg.org/hjacobs/kube-downscaler
and its include/exclude system is quite flexible.

[VarunTyagi86]

@davidebianchi - Do you know by when this enhancement will be available for us to consume ?

[davidebianchi]

Hi @VarunTyagi86! I don't have a schedule for this enhancement, but since it is a high rate request we should work on it after the end of support of generic resources (I'm already working on it).

If someone which needs this feature is interested also in implement it, I can for sure support!