Description of problem: While creating compute-resource image, there is no validation for image path field and passing any data as path creates image.

How reproducible: always

Steps to Reproduce:
1. Create compute resource from Infrastructure option.
2. Click "Create Image" option.
3. Enter any invalid string in image path field and submit.
Image created

Actual results:
Image is created.

Expected results: Image should not be created and it should raise an error showing invalid image path(uuid).