What license do i need for Docker containers (Windows)

I am trying to test Cobol Server in Docker, but all licenses we own are recected when building initial image:
...
Step 18/19 : RUN set MFLICFILE=${MFLICFILE} &&     "%RMT_DIR%\\MFLicenseAdmin.exe" -install %MFLICFILE%
 ---> Running in 60dec237fcc1
Non-STANDALONE license ignored:
10 SolarNativeRuntimeDeploy 1.0 LONG NORMAL NETWORK ADD INFINITE_KEYS INFINITE_KEYS 1 JAN 2009 NEVER NO_SHR SLM_CODE 2_LOG_ENCRYPTION_LEVEL NON_COMMUTER NO_GRACE DEMO NON_REDUNDANT NiL NiL Ni NO_HLD NiL 5_MINS xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Non-STANDALONE license ignored:
xxxxxxx

The command 'cmd /S /C set MFLICFILE=${MFLICFILE} &&     "%RMT_DIR%\\MFLicenseAdmin.exe" -install %MFLICFILE%' returned a non-zero code: 8030720
...

What kind of license do i need. Where can i get at least a test license.