Without explicit dhcp-leasefile and pid-file, dnsmasq reaches for
its distro defaults (/var/lib/misc/dnsmasq.leases,
/run/dnsmasq.pid) — both outside the systemd unit's
ReadWritePaths=/var/lib/vetting /var/log/vetting sandbox, causing
'Read-only file system' on every start.
RuntimeDir is already writable by construction (Supervisor.Start
mkdir's it), so writing both files there keeps dnsmasq entirely
inside the sandbox.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Collapses the LXC side of PXE enablement from a six-step manual dance
(build, fetch iPXE, scp, bridge, hand-edit yaml) into:
make release # dev box (Linux/WSL)
scp bundle.tar.gz lxc:/tmp/
sudo ./install.sh # base install, unchanged
sudo ./pxe-setup.sh --interface ... --dhcp-range ... --orchestrator-url ...
pxe-setup.sh fetches iPXE from boot.ipxe.org, verifies against pinned
SHA256s in deploy/ipxe-shas.txt (fail-closed), places vmlinuz/initrd.img
from the bundle, and rewrites only the pxe: block of vetting.yaml.
Idempotent; --force gates overwriting a hand-edited block.
Adds Supervisor.Validate() — called before dnsmasq spawn — so typo'd
configs fail at orchestrator startup with clear errors naming the
missing file or yaml key, instead of silently serving broken TFTP
until a real host tries to PXE-boot. Nine tests cover missing files,
bogus interface, malformed dhcp_range, bad orchestrator_url, and
aggregate reporting.
Hypervisor bridge creation stays documented (LXC can't do it) but
everything downstream of the bridge is now scripted.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
josh