Files
egress-proxies-operator/internal/provider/kvm/kvm.go
T
kacerrandClaude Fable 5.1 7aea14fbb3 Add KVM provider pure builders: domain XML, volumes, seed ISO, metadata
Introduces internal/provider/kvm with the side-effect-free pieces of the
provider: providerID format/parse, the namespaced <metadata> element that
carries the GC contract, q35 domain XML over pool volumes, volume XML for
overlays and raw seeds, the NoCloud seed ISO built with kdomanski/iso9660,
and config defaults. All unit-tested.

Step 2 of docs/plans/2026-09-04-1404-kvm-provider.md.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-04 20:26:17 +00:00

48 lines
1.4 KiB
Go

// Package kvm implements the provider contract on libvirt/KVM hypervisors.
// Each configured host is reached over SSH with the libvirt unix socket
// forwarded through the connection, so the hypervisors need no libvirtd TCP
// or TLS listener and the operator image needs no libvirt libraries. VMs
// boot a stock cloud image (fetched into the host's storage pool on first
// use) through a qcow2 overlay, with the Proxy's cloud-init delivered on a
// NoCloud seed ISO built in-process.
package kvm
import "gitea.home.hrajfrisbee.cz/kacerr/egress-proxies-operator/internal/provider"
const (
defaultDiskSizeGB = 10
defaultSocket = "/var/run/libvirt/libvirt-sock"
defaultPool = "default"
formatQcow2 = "qcow2"
formatRaw = "raw"
)
func withDefaults(cfg provider.KVMConfig) provider.KVMConfig {
if cfg.DiskSizeGB == 0 {
cfg.DiskSizeGB = defaultDiskSizeGB
}
if cfg.VendorData == "" {
cfg.VendorData = defaultVendorData
}
images := make(map[string]provider.KVMImage, len(cfg.Images))
for k, img := range cfg.Images {
if img.Format == "" {
img.Format = formatQcow2
}
images[k] = img
}
cfg.Images = images
hosts := make([]provider.KVMHost, len(cfg.Hosts))
for i, h := range cfg.Hosts {
if h.Socket == "" {
h.Socket = defaultSocket
}
if h.Pool == "" {
h.Pool = defaultPool
}
hosts[i] = h
}
cfg.Hosts = hosts
return cfg
}