forked from the-distro/infra
40 lines
1.9 KiB
Nix
40 lines
1.9 KiB
Nix
{ lib, pkgs, nodes, config, modulesPath, ... }:
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# The way the connection is established is specific to the wob01 site and the Intel S2600KPR blades.
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# Proper netboot is not possible, because while the blades and the APU board (which is the netboot
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# server here) are in the same L2 network, the uplink connection of each blade is an LACP LAG,
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# meaning that the switch on the other side will only enable the port if it sees valid LACP packets.
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# IPXE sends out these LACP packets while it is probing the ports, however the NICs of the blades
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# do not have a flash which IPXE could be written to.
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# We work around this by presenting a virtual floppy drive using the "IUSB" protocol of the BMC.
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# This virtual floppy drive contains an per-blade customized IPXE script which will initialize the
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# network connection including IP configuration and chainload the actual script off the netboot
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# server.
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let
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netboot-server-ip = "2a01:584:11::2";
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in {
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networking.firewall.allowedTCPPorts = [ 80 ];
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systemd.services = lib.mapAttrs' (nodename: node: let
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ip = "2a01:584:11::1:${toString node.config.bagel.baremetal.builders.num}";
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bmcIp = "192.168.1.${toString (node.config.bagel.baremetal.builders.num * 4 + 2)}";
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gw = "2a01:584:11::1";
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dns = "2a01:580:6000::ff01";
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notipxe = node.config.system.build.notipxe.config.system.build.usbImage;
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in lib.nameValuePair "iusb-spoof-${nodename}" {
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# The iusb-spoof service is currently unreliable and may lock up the BMC + block the builder from booting
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# Thus, it has to be started manually per builder when needed.
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#wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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Restart = "always";
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};
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script = ''
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AUTH_TOKEN=$(${pkgs.iusb-spoof}/bin/make-token ${bmcIp})
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exec ${pkgs.iusb-spoof}/bin/iusb-spoof -r ${bmcIp} 5123 $AUTH_TOKEN ${notipxe}
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'';
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}) (lib.filterAttrs (_: node: node.config.bagel.baremetal.builders.enable && node.config.bagel.baremetal.builders.netboot) nodes);
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}
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