Symptoms
Creating an APM policy image file with source_path attribute fails.
Impact
You are unable to use the source_path attribute for creating APM customization image files.
Workaround
Copy the image file to one of the directories of /var/config/rest/, /var/tmp/, /shared/tmp/ and use local_path instead of source_path.
E.g. create apm policy image-file test.jpg local-path /var/tmp/<file name>
