You have to contact TAC to get ISO link for this, they will take up your case if you have failed install situations

Installation as a VM or custom UCS server is not supported

DNA Assurance supported by wireless controller AIR-CT3504. Kindly find the attached DNA supported device list.  

You can execute commands through Template Editor. Please refer the 2nd page in the link.   https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/1-1/user_guide/b_dnac_ug_1_1/b_dnac_ug_1_1_chapter_...