45cf7be37a
- Copy the whole webapp/ tree (minus __pycache__) in build-usb.sh and build-proxmox-iso.sh, so config, services/, views/ and blancco_evidence_monthly.py reach the server. - sfdisk --append failure now aborts; the CIDATA partition is the one starting exactly at the computed sector, and nothing that starts before it is ever formatted (the old fallback hit the ISO's EFI partition). - Volume id and El Torito load sizes come from the ISO (xorriso -report_el_torito as_mkisofs); grub.cfg must contain autoinstall after patching. - --image FILE SIZE|auto builds the same layout in a file without root (mkfs.vfat -C + mtools, sfdisk on the file). Plus --payload-root, --skip-enrollment/-bios/-drivers/-boot-tools, --yes. - tests/vm: libvirt harness (pxetest-server, pxetest-client, isolated pxetest-imaging network) with fetch-iso/build-image/create/start/ status/stop/destroy.
61 lines
3.4 KiB
Markdown
61 lines
3.4 KiB
Markdown
# pxetest VM harness
|
|
|
|
Proves a new PXE server can be built from this repo, in two libvirt VMs on
|
|
a laptop, without root and without touching a real network.
|
|
|
|
## Topology
|
|
|
|
| Object | What |
|
|
|-------------------|----------------------------------------------------------------------|
|
|
| `pxetest-imaging` | libvirt network, bridge `virbr-pxetest`. No `<forward>`, no `<ip>`: the host has no address on it and libvirt runs no DHCP there. Only VM taps are on the bridge. |
|
|
| `default` | libvirt NAT, 192.168.122.0/24. Stands in for the GE/corp network. |
|
|
| `pxetest-server` | 2 vCPU, 4 GiB, q35 + OVMF Secure Boot (MS keys), 60G thin qcow2 (`vda`, boot 1), the USB image as a USB disk (`sda`, boot 2). |
|
|
| `pxetest-client` | 2 vCPU, 2 GiB, OVMF Secure Boot (MS keys), 1G blank disk, network boot first (UEFI IPv4 PXE, virtio-net, OVMF driver, no option ROM). |
|
|
|
|
NIC MACs (fixed):
|
|
|
|
| VM | NIC | MAC | Network | Playbook var |
|
|
|--------|---------|---------------------|-------------------|-------------------|
|
|
| server | GE | `52:54:00:9e:10:01` | `default` NAT | `pxe_ge_mac` / corp_nic_mac |
|
|
| server | imaging | `52:54:00:9e:10:02` | `pxetest-imaging` | `pxe_imaging_mac` / pxe_nic_mac |
|
|
| client | - | `52:54:00:9e:10:03` | `pxetest-imaging` | - |
|
|
|
|
The disk boots before the USB on purpose: a blank disk falls through to
|
|
the installer, and after the install the server boots its disk instead of
|
|
re-running autoinstall. CIDATA stays attached for the first-boot playbook.
|
|
|
|
Never attach a pxetest VM to a physical NIC, a host bridge with physical
|
|
ports, or macvtap: the server's dnsmasq serves DHCP/PXE as 172.16.9.1.
|
|
`create.sh`, `start.sh` and `status.sh` check the isolation and refuse to
|
|
continue if `pxetest-imaging` ever gains a `<forward>`, an `<ip>`, a host
|
|
IPv4 address or a non-tap bridge port.
|
|
|
|
## Run it
|
|
|
|
export PXETEST_CACHE=~/.cache/pxetest # ISO + image (about 10 GB)
|
|
export PXETEST_PAYLOAD_ROOT=/home/camp/projects/pxe # checkout holding offline-packages/, boot-files/, ...
|
|
|
|
tests/vm/fetch-iso.sh # Ubuntu 24.04.5 live-server ISO, SHA256SUMS-verified
|
|
tests/vm/build-image.sh # build-usb.sh --image, upload as volume pxetest-usb.img
|
|
tests/vm/create.sh # network, volumes, both VMs (prints the MAC pins)
|
|
tests/vm/start.sh server # autoinstall, reboot, first-boot playbook
|
|
tests/vm/status.sh --shot /tmp/pxetest-shots # states, leases, screenshots
|
|
tests/vm/start.sh client # once the server playbook is done
|
|
tests/vm/stop.sh # ACPI shutdown both, keep them defined
|
|
tests/vm/destroy.sh # remove every pxetest-* object
|
|
|
|
`build-image.sh` skips enrollment/, bios-staging/, drivers-staging/ and
|
|
boot-tools/ by default; `--with-enrollment` and `--with-boot-tools` add
|
|
them back, `--size 20G` fixes the image size (default `auto`). If the host
|
|
has no `sfdisk` or `mtools`, the debs are extracted into
|
|
`$PXETEST_CACHE/tools` (no install, no root).
|
|
|
|
Watch the server with `virt-viewer -c qemu:///system pxetest-server` (VNC on
|
|
127.0.0.1) or screenshots. On the installed system, first-boot output goes
|
|
to `/var/log/first-boot.log`. Once the GE NIC takes a DHCP lease on the NAT
|
|
network, `status.sh` shows its address and `ssh pxe@<address>` works from
|
|
the host.
|
|
|
|
Memory: server 4 GiB + client 2 GiB. Keep other VMs (win11) off while
|
|
both run, and stop them when done.
|