Use [https://developers.redhat.com/blog/2018/05/30/how-to-install-red-hat-cdk-3-4-on-fedora-28/|How to install Red Hat CDK 3.4 on Fedora 28] as a template.
The procedure should remain the same for CDK 3.5.
Use [https://developers.redhat.com/blog/2018/05/30/how-to-install-red-hat-cdk-3-4-on-fedora-28/|How to install Red Hat CDK 3.4 on Fedora 28] as a template.
The procedure should remain the same for CDK 3.5.