As a user I should be able to specify shapes for control and worker nodes separately

[joekr]

What would you like to be added:
Right now if a cluster is defined as a BM.Standard3.64 shape both the control plane and all worker nodes are that same shape when the user is using our defined templates. We would like the ability to allow users to specify the control plane as on shape (example: VM.Standard.E4.Flex ) while the worker nodes are a different shape (example: BM.Standard3.64).

Why is this needed:
Customers have asked for this feature.

[shyamradhakrishnan]

@joekr this is already available. The default template uses the same shape, but users can customize the template to have different shapes. Is the ask here that we have a template for this?

[joekr]

Is the ask here that we have a template for this?

@hyder can better answer that question. My assumption is yes, our provided templates should allow for a control plane ENV as well as a worker ENV.

[shyamradhakrishnan]

Discussed with @hyder , the ask here is change the templates to have separate env variables for control plane and worker machines.

[joekr]

I've updated the original comment to reflect that. Thanks @shyamradhakrishnan

[joekr]

So I believe we will want to update our templates with the following:

• OCI_SHAPE
• OCI_SHAPE_OCPUS
• OCI_SHAPE_MEMORY_IN_GBS
• OCI_PV_TRANSIT_ENCRYPTION

For now I'm going to assume we want to keep things like OCI_IMAGE_ID and OCI_SSH_KEY standard across both control plane and worker node.