[Reference: Palo Alto Networks documentation states that for OpenStack environments, the VM-Series firewall is available in a qcow2 image format., Palo Alto Networks VM-Series Deployment Guide, OpenStack heat template in YAML format:, OpenStack Heat Orchestration Templates (HOT) are written in YAML. These templates define the infrastructure needed for deployment and can automate the deployment process., Reference: OpenStack documentation specifies the use of YAML for heat templates, and Palo Alto Networks supports YAML format for ease of integration and automation., OpenStack Heat Documentation, , ]