anjanesh It may be possible to run Pegasus on your Opalstack server, but since Docker is not available, you will have to try the deployment method described here. I cannot give you specific instructions because there's no way to test the setup process without purchasing a Pegasus license first.
We expect to have new servers with a newer OS available by the end of Q2 2024. We will look into adding Docker support after that, but we cannot commit to a specific ETA at this time.