The migrate CLI migrates the entire topology or given appliances.

migrate CLI

$ python3 vm_cn_migration.py migrate -h
usage: vm_cn_migration.py migrate [-h] input_file

Migrates the data from old to the new appliance(s)

positional arguments:  
           input_file  input file containing TCA manager and TCA-CP details.
options:  
        -h, --help  show this help message and exit

Input is same as specified above.

migrate CLI

python3 vm_cn_migration.py migrate input.json