ovhcloud: Add support for nodepool templating #5586
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Should fix the autoscaler being unable to scale up an empty nodepool with specific template, because the template was not processed when setting up the upscale simulation (with the following error: "node(s) didn't match Pod's node affinity/selector") Signed-off-by: Xavier Duthil <xavier.duthil@ovhcloud.com>
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: mwielgus, XavierDuthil The full list of commands accepted by this bot can be found here. The pull request process is described here
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What type of PR is this?
/kind feature
What this PR does / why we need it:
Allows the autoscaler to scale up an empty OVHCloud nodepool with specific templating (e.g. labels) that is needed to accommodate the Pending pods.
The templating was not taken into account when generating the node upscale simulation, which resulted in errors of the following kind:
With this PR the simulation is closer to the truth and the node group is successfully scaled up by the autoscaler.
This fix has already been released in production for the cluster-autoscaler instances running on the OVHcloud Managed Kubernetes product.
Which issue(s) this PR fixes:
Special notes for your reviewer:
The OVHCloud nodepool template feature is described in the following documentation: https://support.us.ovhcloud.com/hc/en-us/articles/1500005054502-How-to-Manage-Nodes-and-Node-Pools-with-the-OVHcloud-API
Does this PR introduce a user-facing change?
Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.: