Ceph » Orchestrator

Maybe we should follow the design/"spirit" embedded in:
[[k8s's Assigning Pods to Nodes:https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#affinity-and-anti-affinity]]

It should be possible to indicate where to deploy a daemon taking into account:

- Nodes where certain resources are available:
- Other daemons are/or not running:

For example:

Host-affinity:
  cpu: '>= 50'
  ram: '>= 50'
  available_devices: '>= 1'
  labelSelector:
  - label: daemon_type
    operator: in
    value: osd
Host-antiaffinity:
  labelSelector:
  - label: daemon_type
    operator: in
    value: mon

and this means:
Deploy this daemon in a host with more than 50% of cpu available, more than 50% free ram, more than one available_devices for OSds.
In this host must run at least another OSD and no Monitors