If an offline installation is necessary, you can install APIIDA API Gateway Manager with docker offline images:
Download the offline archive:
APIIDA_API_Gateway_Manager_Winter20_Offline.tar
Import docker images:
docker image load -i APIIDA_API_Gateway_Manager_Winter20_Offline.tar
Tag the loaded images:
docker tag 5a253fbaec96 apiida/aagm:Winter20
docker tag e4d04cb5f391 apiida/aagmdb:Winter20
You can proceed with the installation steps, like described here: Installing as Docker Container
The image ID changes from every release. Please contact the APIIDA Support for further assistance.