Add OCI instance-pool based cloud provider

[jlamillan]

Hello Community,

This pull-request adds support for a node autoscaler for Oracle Cloud Infrastructure (OCI) that uses Instance Pools
combined with Instance Configurations.

It's currently being used internally as well as by a couple of early access customers who are using it in combination with Rancher/RKE. We'd like to subset it here for broader community use.

It has the basic support you would expect - automatically adjusting the number of instances in the configured instance pool(s) based on Kubernetes resource, affinity, requirements, etc.

We're here if you have any questions!

[k8s-ci-robot]

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[jlamillan]

FYI @ericrrath

[jlamillan]

/assign @aleksandra-malinowska

[EladGabay]

Hey, any plans to merge this soon? :) @jlamillan

[mwielgus]

We don't accept any new dependencies for new cloud providers. Please put all required dependencies into you cloud provider directory.

[mwielgus]

Moreover, inside OWNERS, please comment out people who are not in K8S organization. So that we pass globally imposed validation and know who to contact for reviews.

[jlamillan]

We don't accept any new dependencies for new cloud providers. Please put all required dependencies into you cloud provider directory.

@mwielgus, all files and the OCI SDK are already stored in cluster-autoscaler/cloudprovider/oci/ directory. Was there something else you were referring to?

[jlamillan]

Moreover, inside OWNERS, please comment out people who are not in K8S organization. So that we pass globally imposed validation and know who to contact for reviews.

commented out.

[EladGabay]

@jlamillan hey, is it possible to use "nodepool" instead of "instancepool"?
I mean, the same as in https://docs.oracle.com/en-us/iaas/Content/ContEng/Tasks/contengusingclusterautoscaler.htm

[mwielgus]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jlamillan, mwielgus

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[EladGabay]

@jlamillan Congrats :)
Any plans to add nodepool option instead of instance-pool?
Thanks!

[jlamillan]

@EladGabay checkout OKE nodepool autoscaler here:
https://docs.oracle.com/en-us/iaas/Content/ContEng/Tasks/contengusingclusterautoscaler.htm

[EladGabay]

@jlamillan thanks, I already use that version. I'm looking for its source code so I'll able to add some modification to my use case. Any chance to get it?

[jlamillan]

@EladGabay

I believe that team has plans to release it at some point, but it is not available yet.