Running FinalBuilder in Docker

I'm using microsoft/windowsservercore. Basically, this is my dockerfile (so far). This microsoft/windowsservercore already comes with PowerShell 5.0

FROM microsoft/windowsservercore
RUN ["powershell.exe", "Install-WindowsFeature NET-Framework-45-ASPNET"]
WORKDIR /installer
ADD /resources/installer /installer
The installer installation log appears OK, no error message appears. The installer folder contains the installer and the license key, properly copied to the ProgramData folder as you suggested.
Thanks for your help