createManagedNodeGroup disable node group auto naming

[Embraser01]

Problem description

A managed node group created throuh createManagedNodeGroup will not have an auto generated name on AWS.

The issue is the same as #294 but is caused by

pulumi-eks/nodejs/eks/nodegroup.ts

Line 850 in 4498d12

nodeGroupName: args.nodeGroupName || name,

introduced in #302:

Refactoring the managed node group API to simplify its use (options in role vs role.ARN, make parent arg optional, and default node group name).

It causes the node group to be deleted before being replaced in case the config change (e.g. isntanceType). Is there a reason to not auto name it?

Errors & Logs

Reproducing the issue

Creating a node group and changing it's instanceType should reproduce the issue.

Suggestions for a fix

Removing the fallback to name should work.

[leezen]

The fix you suggest makes sense and autonaming it here would help with what you're describing. Happy to take a PR here if you'd like to submit one?