Alan,
You can follow sk110194 to deploy a cluster in Azure.
The short short description.
Define a vNet
Define a Frontend Subnet within the vNet
Define a Backend Subnet within the vNet
Deploy CheckPoint vSec Cluster from the marketplace
Follow the steps to deploy. This will take about 10 minutes once you complete all the steps.
Enable vSec on the management server via CLI. Command is vsec on
Create a new cluster object in your domain. Use the public IP created for the cluster as the cluster IP
Add each object to the cluster
Set both interfaces as sync only
You will need to create a service principal that has contributor rights
Run the command azure-ha-conf --client-id (with client-id from the service principal here) --client-secret (with the key created when you created the service principal here) This needs to be done on each firewall in the cluster.
Run the command $FWDIR/scripts/azure-ha-cli.py reconf This also needs to be done on each firewall in the cluster
Install your vsec license in the domain where you are deploying vSec.
Attach the license to the CMA.
Go to CLI of the management server and change to the domain environment mdsenv domain-name-here
Run the command vsec-central-license
That is the very short version.
Hope that helps.