Demonstrates creating VMs with various configurations using harmony's KVM module. These examples exercise the same infrastructure primitives needed for the full OKD HA cluster with OPNsense, control plane, and workers with Ceph.

Prerequisites

A working KVM/libvirt setup:

# Manjaro / Arch
sudo pacman -S qemu-full libvirt virt-install dnsmasq ebtables
sudo systemctl enable --now libvirtd
sudo usermod -aG libvirt $USER
# Log out and back in for group membership to take effect

Scenarios

Scenario	VMs	Disks	NICs	Purpose
`alpine`	1	1x2G	1	Minimal VM, fast boot (~5s)
`ubuntu`	1	1x25G	1	Standard server setup
`worker`	1	3 (60G+100G+100G)	1	Multi-disk for Ceph OSD
`gateway`	1	1x10G	2 (WAN+LAN)	Dual-NIC firewall
`ha-cluster`	7	mixed	1 each	Full HA: gateway + 3 CP + 3 workers

Usage

# Deploy a scenario
cargo run -p kvm-vm-examples -- alpine
cargo run -p kvm-vm-examples -- ubuntu
cargo run -p kvm-vm-examples -- worker
cargo run -p kvm-vm-examples -- gateway
cargo run -p kvm-vm-examples -- ha-cluster

# Check status
cargo run -p kvm-vm-examples -- status alpine

# Clean up
cargo run -p kvm-vm-examples -- clean alpine

Environment variables

HARMONY_KVM_URI: libvirt URI (default: qemu:///system)
HARMONY_KVM_IMAGE_DIR: where disk images and ISOs are stored