[RA2 Ch4] Is there a need for different node labels for the different Cloud Infrastructure Profiles?

[CsatariGergely]

RA2 should describe if a Kubernetes cluster should have different node labels for the different hosts supporting different CNTT Cloud Infrastructure Profiles.

[tomkivlin]

Yes good idea. Anyone know if a similar approach has been taken in RA1 and any standards for label names etc.

e.g.
cntt_profile=basic
cntt_profile=network_intensive

or

cntt_basic=true
cntt_network_intensive=true

Just thinking through whether a basic workload would want to be scheduled onto any node, with only network intensive needing to be directed?

[pgoyal01]

@tomkivlin In RA-1 the nodes are not labeled as they are created based on a profile (basic, network-intensive) and can be searched based on the profile. I don't think there are OpenStack APIs for node labeling. Need OpenStack experts to help.

[gkunz]

Assuming there might be more profiles over time (e.g., compute intensive [AI/ML]), I'd go for the second approach, allowing profiles to be overlapping and nodes meeting the requirements of multiple profiles to be used flexibly with regards to the workload running on them.