Block volume provisioning customization in instance-pool mode

[ddevadat]

Community Note

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• Please do not leave "+1" or "me too" comments, they generate extra noise for issue followers and do not help prioritize the request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

Description

Block volume provisioning customization in instance-pool mode

New or Affected Resource(s)

When we create worker node in instance-pool mode, the module creates a 50Gb Block volume and attaches the compute instance.

Right now there is no option to opt out of this. I have seen use case where customer want to create worker pool in instance-pool mode, but dont really need the block volume. Its an extra unwanted cost to them and they cant opt out.

Also if a customer do want to opt in, it would be better to customize the block volume size. Just a thought.

Potential Terraform Configuration

https://github.com/oracle-terraform-modules/terraform-oci-oke/blob/2c7037a41cc4bea47e648e2f622d22bae2db9f40/modules/workers/instanceconfig.tf#L119C1-L132C6

# Copy-paste any Terraform configurations for how the requested feature may be used. 
    block_volumes {
      attach_details {
        type                                = each.value.block_volume_type
        is_pv_encryption_in_transit_enabled = each.value.pv_transit_encryption
      }

      create_details {
        // Limit to first candidate placement AD for cluster-network; undefined for all otherwise
        availability_domain = each.value.mode == "cluster-network" ? element(each.value.availability_domains, 1) : null
        compartment_id      = each.value.compartment_id
        display_name        = each.key
        kms_key_id          = each.value.volume_kms_key_id
      }
    }

References