Is it possible to create

Web identity

IAM role type (as shown on the screenshot below) using Pulumi? I don’t see type option under the RoleArgs. I need to create web identity role type and select custom identity provider needed to enable eks cluster autoscaling

Yes. These are roles just like any other. They just follow a template, and that radio button just selects the template. You can read through what needs to be in the role, its policies and its trust policy here: https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_create_for-idp_oidc.html