Deployment fails with "Failed to connect to the host via ssh: ssh: connect to host 192.168.30.146 port 8000: Connection refused"

[What-Do-I-Know]

Deployment fails with error

TASK [deploy_bastion : Wait for Bastion machine to start] ***************************************************************************
task path: /home/<user>/git/openshift-aio/playbooks/roles/deploy_bastion/tasks/deploy_bastion_ipi.yml:2
FAILED - RETRYING: Wait for Bastion machine to start (3 retries left).
FAILED - RETRYING: Wait for Bastion machine to start (2 retries left).
FAILED - RETRYING: Wait for Bastion machine to start (1 retries left).
fatal: [192.168.123.100]: FAILED! => {"attempts": 3, "changed": false, "elapsed": 120, "msg": "timed out waiting for ping module test: Failed to connect to the host via ssh: ssh: connect to host 192.168.30.146 port 8000: Connection refused"}

The Bastion VM is up and running, I can ssh to 192.168.30.146, but not on port 8000.