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Description

I would like to use a reserved public IP for an instance to keep the same IP if the instance is re-created. I can create the reserved public IP with resource "oci_core_public_ip". Now for the instance, the block resource "oci_core_instance" does not have an option to attach or associate the existing VNIC.
Is there another resource block to attach the existing VNIC to the instance? I see the opcion in the OCI web console as explained in this article

New or Affected Resource(s)

resource "oci_core_instance" could be modified to allow this option. Maybe a new resource to assign and unassign public ip.

Potential Terraform Configuration

A new section that assign a VNIC. This would be the most basic since OCI allows more VNIC.

resource "oci_core_instance" "test_instance" {
    ...
    assign_vnic_details {
        public_ip = oci_core_public_ip.test_public_ip.id
        ...
    }
    ...
}

References