"To take advantage of container licensing, IBM License Service must be used to track license usage and determine your required entitlement. There are no exceptions to this rule."
https://www.ibm.com/software/passportadvantage/containerlicenses.html
I find it ironic that IBM requires a special discovery/reporting tool that does NOT interface with their asset management system (ICD) and does not work with their discovery tool ILMT. Containers and IBM Cloud Pak are new challenges.