Hack hack hack
This commit is contained in:
parent
0a86a649a6
commit
c4df21da3b
@ -106,8 +106,8 @@ in
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{
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name = "build-netboot";
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category = "tasks";
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help = "Build NixOS configuration as netboot archive";
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command = ''nix build "''${@:2}" ".#nixfiles.config.nixos.systems.\"$1\".configuration.config.my.buildAs.netbootArchive"'';
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help = "Build NixOS configuration as netboot tree";
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command = ''nix build "''${@:2}" ".#nixfiles.config.nixos.systems.\"$1\".configuration.config.my.buildAs.netbootTree"'';
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}
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{
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name = "build-home";
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@ -148,9 +148,11 @@ in
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};
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};
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};
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nginx.enable = true;
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};
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networking.domain = "h.${pubDomain}";
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networking = { inherit domain; };
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systemd.services = {
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ipsec =
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@ -376,6 +378,11 @@ in
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}
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'';
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};
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netboot.server = {
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enable = true;
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ip = vips.lo.v4;
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host = "boot.${domain}";
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};
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};
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};
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};
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@ -130,6 +130,7 @@ in
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}}
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${elemAt routers 0} IN AAAA ${net.cidr.host 1 prefixes.hi.v6}
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${elemAt routers 1} IN AAAA ${net.cidr.host 2 prefixes.hi.v6}
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boot IN CNAME router-hi.${config.networking.domain}.
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@ IN NS ns1
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@ IN NS ns2
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@ -1,4 +1,4 @@
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index: { lib, pkgs, assignments, ... }:
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index: { lib, pkgs, config, assignments, ... }:
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let
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inherit (lib) mkForce;
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inherit (lib.my) net;
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@ -59,6 +59,7 @@ in
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always-send = true;
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}
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];
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client-classes = config.my.netboot.server.keaClientClasses;
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subnet4 = [
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{
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id = 1;
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@ -19,5 +19,6 @@
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borgthin = ./borgthin.nix;
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nvme = ./nvme;
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spdk = ./spdk.nix;
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netboot = ./netboot;
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};
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}
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@ -1,6 +1,6 @@
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{ lib, pkgs, extendModules, modulesPath, options, config, ... }:
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let
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inherit (lib) recursiveUpdate mkOption mkDefault mkIf mkMerge flatten optional;
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inherit (lib) recursiveUpdate mkOption mkDefault mkIf mkMerge mkForce flatten optional;
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inherit (lib.my) mkBoolOpt' dummyOption;
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cfg = config.my.build;
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@ -43,15 +43,206 @@ let
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modules = flatten [
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"${modulesPath}/installer/netboot/netboot.nix"
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allHardware
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({ pkgs, config, ... }: {
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system.build.netbootArchive = pkgs.runCommand "netboot-${config.system.name}-archive.tar" { } ''
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${pkgs.gnutar}/bin/tar -rvC "${config.system.build.kernel}" \
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-f "$out" "${config.system.boot.loader.kernelFile}"
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${pkgs.gnutar}/bin/tar -rvC "${config.system.build.netbootRamdisk}" \
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-f "$out" initrd
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${pkgs.gnutar}/bin/tar -rvC "${config.system.build.netbootIpxeScript}" \
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-f "$out" netboot.ipxe
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(mkIf config.boot.initrd.systemd.enable {
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boot.initrd.systemd.services.setup-overlay-dirs = {
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description = "Create overlayfs dirs";
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after = [ "sysroot-nix-.rw\\x2dstore.mount" ];
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before = [ "sysroot-nix-store.mount" ];
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script = ''
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mkdir /sysroot/nix/.rw-store/{store,work}
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'';
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wantedBy = [ "initrd-fs.target" ];
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};
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fileSystems."/nix/store" = mkForce {
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fsType = "overlay";
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device = "overlay";
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options = [
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"lowerdir=/sysroot/nix/.ro-store"
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"upperdir=/sysroot/nix/.rw-store/store"
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"workdir=/sysroot/nix/.rw-store/work"
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];
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};
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systemd.units."nix-store.mount".enable = false;
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})
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];
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};
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asNetboot = extendModules {
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modules = flatten [
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allHardware
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({ pkgs, config, ... }:
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let
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initrdNbdWrapper = pkgs.writeCBin "nbd-wrapper" ''
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#include <stdio.h>
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#include <unistd.h>
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int main(int argc, char **argv) {
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if (argc < 3) {
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fprintf(stderr, "usage: %s <export> <server>\n", argv[0]);
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return -1;
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}
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argv[0][0] = '@';
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char* args[] = {
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"@", "-nofork", "-N", argv[1], argv[2], "/dev/nbd0", NULL
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};
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execv("${pkgs.nbd}/bin/nbd-client", args);
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return 0;
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};
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'';
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nbd = pkgs.nbd.overrideAttrs (o: {
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# TODO: Remove once this makes it to us
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# https://github.com/NixOS/nixpkgs/commit/52f1d9b03ae38126e7f648634fcad35897f464ed
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configureFlags = [ "--sysconfdir=/etc" ];
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});
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in
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{
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boot = {
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loader.grub.enable = false;
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kernelParams = [ "console=ttyS0,115200n8" ];
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initrd = {
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kernelModules = [ "nbd" ];
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systemd = {
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storePaths = with pkgs; [
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gnused
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nbd
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initrdNbdWrapper
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netcat
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];
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extraBin = with pkgs; {
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dmesg = "${util-linux}/bin/dmesg";
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ip = "${iproute2}/bin/ip";
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nbd-client = "${nbd}/bin/nbd-client";
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};
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extraConfig = ''
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DefaultTimeoutStartSec=10
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DefaultDeviceTimeoutSec=10
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'';
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network = {
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enable = true;
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wait-online.enable = true;
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networks."10-nbd" = {
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matchConfig.Name = "et-nbd";
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DHCP = "yes";
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};
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};
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services = {
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# gennbdtab = {
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# description = "Generate nbdtab";
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# script = ''
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# get_cmdline() {
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# ${pkgs.gnused}/bin/sed -rn "s/^.*$1=(\\S+).*\$/\\1/p" < /proc/cmdline
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# }
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# e="$(get_cmdline nbd_export)"
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# s="$(get_cmdline nbd_server)"
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# echo "Setting nbdtab for $e @ $s"
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# echo "nbd0 $s $e persist" > /etc/nbdtab
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# '';
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# serviceConfig.Type = "oneshot";
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# # wantedBy = [ "initrd-root-device.target" ];
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# };
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nbd = {
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description = "NBD Nix store";
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# before = [ "initrd-root-device.target" ];
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# after = [ "gennbdtab.service" "systemd-networkd-wait-online.service" ];
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# wants = [ "gennbdtab.service" "systemd-networkd-wait-online.service" ];
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# after = [ "systemd-networkd-wait-online.service" ];
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# wants = [ "systemd-networkd-wait-online.service" ];
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script = ''
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get_cmdline() {
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${pkgs.gnused}/bin/sed -rn "s/^.*$1=(\\S+).*\$/\\1/p" < /proc/cmdline
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}
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s="$(get_cmdline nbd_server)"
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until ${pkgs.netcat}/bin/nc -zv "$s" 22; do
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sleep 0.1
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done
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exec ${nbd}/bin/nbd-client -systemd-mark -N "$(get_cmdline nbd_export)" "$s" /dev/nbd0
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# exec ${initrdNbdWrapper}/bin/nbd-wrapper "$(get_cmdline nbd_export)" "$(get_cmdline nbd_server)"
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'';
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unitConfig = {
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IgnoreOnIsolate = "yes";
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DefaultDependencies = "no";
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};
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serviceConfig = {
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Type = "forking";
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# ExecStart = "${nbd}/bin/nbd-client -nofork -systemd-mark nbd0";
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Restart = "on-failure";
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RestartSec = 10;
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};
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# wantedBy = [ "initrd-root-device.target" ];
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};
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};
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};
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};
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};
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programs.nbd.enable = true;
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fileSystems = {
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"/" = {
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fsType = "tmpfs";
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options = [ "mode=0755" ];
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};
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"/nix/store" = {
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fsType = "squashfs";
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device = "/dev/nbd0";
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options = [ "x-systemd.requires=nbd.service" ];
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};
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};
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system.build = {
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squashfsStore = pkgs.callPackage "${modulesPath}/../lib/make-squashfs.nix" {
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storeContents = [ config.system.build.toplevel ];
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comp = "zstd";
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};
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netbootScript = pkgs.writeText "boot.ipxe" ''
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#!ipxe
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kernel ${pkgs.stdenv.hostPlatform.linux-kernel.target} init=${config.system.build.toplevel}/init initrd=initrd ifname=et-nbd:''${mac} nbd_server=''${next-server} ${toString config.boot.kernelParams} ''${cmdline}
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initrd initrd
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boot
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'';
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netbootTree = pkgs.linkFarm "netboot-${config.system.name}" [
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{
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name = config.system.boot.loader.kernelFile;
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path = "${config.system.build.kernel}/${config.system.boot.loader.kernelFile}";
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}
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{
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name = "initrd";
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path = "${config.system.build.initialRamdisk}/initrd";
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}
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{
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name = "nix-store.sfs";
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path = config.system.build.squashfsStore;
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}
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{
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name = "boot.ipxe";
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path = config.system.build.netbootScript;
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}
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];
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netbootArchive = pkgs.runCommand "netboot-${config.system.name}.tar" { } ''
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add() {
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${pkgs.gnutar}/bin/tar --dereference -rvC "$1" -f "$out" "$2"
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}
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add "${config.system.build.kernel}" "${config.system.boot.loader.kernelFile}"
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add "${config.system.build.initialRamdisk}" initrd
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tmpdir="$(mktemp -d sfsStore.XXXXXX)"
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ln -s "${config.system.build.squashfsStore}" "$tmpdir"/nix-store.sfs
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add "$tmpdir" nix-store.sfs
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add "${config.system.build.netbootScript}" boot.ipxe
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'';
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};
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})
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];
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};
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@ -77,6 +268,7 @@ in
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asISO = mkAsOpt asISO "a bootable .iso image";
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asContainer = mkAsOpt asContainer "a container";
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asKexecTree = mkAsOpt asKexecTree "a kexec-able kernel and initrd";
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asNetboot = mkAsOpt asNetboot "a netboot-able kernel initrd, and iPXE script";
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buildAs = options.system.build;
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};
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@ -109,7 +301,7 @@ in
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iso = config.my.asISO.config.system.build.isoImage;
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container = config.my.asContainer.config.system.build.toplevel;
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kexecTree = config.my.asKexecTree.config.system.build.kexecTree;
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netbootArchive = config.my.asKexecTree.config.system.build.netbootArchive;
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netbootTree = config.my.asNetboot.config.system.build.netbootTree;
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};
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};
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};
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228
nixos/modules/netboot/default.nix
Normal file
228
nixos/modules/netboot/default.nix
Normal file
@ -0,0 +1,228 @@
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{ lib, pkgs, config, systems, ... }:
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let
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inherit (builtins) toJSON;
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inherit (lib) optional optionalAttrs mapAttrsToList mkMerge mkIf withFeature mkOption;
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inherit (lib.my) mkOpt' mkBoolOpt';
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rpcOpts = with lib.types; {
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options = {
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method = mkOpt' str null "RPC method name.";
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params = mkOpt' (attrsOf unspecified) { } "RPC params";
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};
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};
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cfg = config.my.netboot;
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config' = {
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subsystems = mapAttrsToList (subsystem: c: {
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inherit subsystem;
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config = map (rpc: {
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inherit (rpc) method;
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} // (optionalAttrs (rpc.params != { }) { inherit (rpc) params; })) c;
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}) cfg.config.subsystems;
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};
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configJSON = pkgs.writeText "spdk-config.json" (toJSON config');
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spdk = pkgs.spdk.overrideAttrs (o: {
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configureFlags = o.configureFlags ++ (map (withFeature true) [ "rdma" "ublk" ]);
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buildInputs = o.buildInputs ++ (with pkgs; [ liburing ]);
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});
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spdk-rpc = (pkgs.writeShellScriptBin "spdk-rpc" ''
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exec ${pkgs.python3}/bin/python3 ${spdk.src}/scripts/rpc.py "$@"
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'');
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spdk-setup = (pkgs.writeShellScriptBin "spdk-setup" ''
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exec ${spdk.src}/scripts/setup.sh "$@"
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'');
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spdk-debug = pkgs.writeShellApplication {
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name = "spdk-debug";
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runtimeInputs = [ spdk ];
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text = ''
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set -m
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if [ "$(id -u)" -ne 0 ]; then
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echo "I need to be root!"
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exit 1
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fi
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spdk_tgt ${cfg.extraArgs} --wait-for-rpc &
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until spdk-rpc spdk_get_version > /dev/null; do
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sleep 0.5
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done
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spdk-rpc bdev_set_options --disable-auto-examine
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spdk-rpc framework_start_init
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${cfg.debugCommands}
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fg %1
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'';
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};
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tftpRoot = pkgs.linkFarm "tftp-root" [
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{
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name = "ipxe-x86_64.efi";
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path = "${pkgs.ipxe}/ipxe.efi";
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}
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];
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menuFile = pkgs.runCommand "menu.ipxe" {
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bootHost = cfg.server.host;
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} ''
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substituteAll ${./menu.ipxe} "$out"
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'';
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in
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{
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options.my.netboot = with lib.types; {
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client = {
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enable = mkBoolOpt' false "Whether network booting should be enabled.";
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};
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server = {
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enable = mkBoolOpt' false "Whether a netboot server should be enabled.";
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ip = mkOpt' str null "IP clients should connect to via TFTP.";
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host = mkOpt' str config.networking.fqdn "Hostname clients should connect to over HTTP.";
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instances = mkOpt' (listOf str) [ ] "Systems to hold boot files for.";
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keaClientClasses = mkOption {
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type = listOf (attrsOf str);
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description = "Kea client classes for PXE boot.";
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readOnly = true;
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};
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};
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};
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config = mkMerge [
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(mkIf cfg.client.enable {
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environment.systemPackages = [
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spdk
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spdk-setup
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spdk-rpc
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] ++ (optional (cfg.debugCommands != "") spdk-debug);
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systemd.services = {
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spdk-tgt = {
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description = "SPDK target";
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path = with pkgs; [
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bash
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python3
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kmod
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gawk
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util-linux
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];
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serviceConfig = {
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ExecStartPre = "${spdk.src}/scripts/setup.sh";
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ExecStart = "${spdk}/bin/spdk_tgt ${cfg.extraArgs} -c ${configJSON}";
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};
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wantedBy = [ "multi-user.target" ];
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};
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};
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})
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(mkIf cfg.server.enable {
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environment = {
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etc = {
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"netboot/menu.ipxe".source = menuFile;
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"netboot/shell.efi".source = "${pkgs.edk2-uefi-shell}/shell.efi";
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};
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};
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systemd = {
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services = {
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netboot-update = {
|
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description = "Update netboot images";
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after = [ "systemd-networkd-wait-online.service" ];
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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};
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path = with pkgs; [
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coreutils curl jq gnutar
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];
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script = ''
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update_nixos() {
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latestShort="$(curl -s https://git.nul.ie/api/v1/repos/dev/nixfiles/tags/installer \
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| jq -r .commit.sha | cut -c -7)"
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if [ -f nixos-installer/tag.txt ] && [ "$(< nixos-installer/tag.txt)" = "$latestShort" ]; then
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echo "NixOS installer is up to date"
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return
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fi
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echo "Updating NixOS installer to $latestShort"
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mkdir -p nixos-installer
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fname="nixos-installer-devplayer0-netboot-$latestShort.tar"
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downloadUrl="$(curl -s https://git.nul.ie/api/v1/repos/dev/nixfiles/releases/tags/installer | \
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jq -r ".assets[] | select(.name == \"$fname\").browser_download_url")"
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curl -Lo /tmp/nixos-installer-netboot.tar "$downloadUrl"
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tar -C nixos-installer -xf /tmp/nixos-installer-netboot.tar
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rm /tmp/nixos-installer-netboot.tar
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echo "$latestShort" > nixos-installer/tag.txt
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}
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mkdir -p /srv/netboot
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||||
cd /srv/netboot
|
||||
|
||||
ln -sf ${menuFile} boot.ipxe
|
||||
ln -sf "${pkgs.edk2-uefi-shell}/shell.efi"
|
||||
update_nixos
|
||||
'';
|
||||
startAt = "06:00";
|
||||
wantedBy = [ "network-online.target" ];
|
||||
};
|
||||
|
||||
nbd-server.preStart = ''
|
||||
mkdir /tmp/nbdcow
|
||||
'';
|
||||
};
|
||||
};
|
||||
|
||||
services = {
|
||||
atftpd = {
|
||||
enable = true;
|
||||
root = tftpRoot;
|
||||
};
|
||||
|
||||
nginx = {
|
||||
virtualHosts."${cfg.server.host}" = {
|
||||
locations."/" = {
|
||||
root = "/srv/netboot";
|
||||
extraConfig = ''
|
||||
autoindex on;
|
||||
'';
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
nbd.server = {
|
||||
enable = true;
|
||||
extraOptions = {
|
||||
allowlist = true;
|
||||
};
|
||||
exports = {
|
||||
nixos-installer = {
|
||||
path = "/srv/netboot/nixos-installer/nix-store.sfs";
|
||||
extraOptions = {
|
||||
copyonwrite = true;
|
||||
cowdir = "/tmp/nbdcow";
|
||||
sparse_cow = true;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
my = {
|
||||
tmproot.persistence.config.directories = [ "/srv/netboot" ];
|
||||
netboot.server.keaClientClasses = [
|
||||
{
|
||||
name = "ipxe";
|
||||
test = "substring(option[user-class].hex, 0, 4) == 'iPXE'";
|
||||
next-server = cfg.server.ip;
|
||||
server-hostname = cfg.server.host;
|
||||
boot-file-name = "http://${cfg.server.host}/boot.ipxe";
|
||||
}
|
||||
{
|
||||
name = "efi-x86_64";
|
||||
test = "option[client-system].hex == 0x0007";
|
||||
next-server = cfg.server.ip;
|
||||
server-hostname = cfg.server.host;
|
||||
boot-file-name = "ipxe-x86_64.efi";
|
||||
}
|
||||
];
|
||||
};
|
||||
})
|
||||
];
|
||||
}
|
||||
68
nixos/modules/netboot/menu.ipxe
Normal file
68
nixos/modules/netboot/menu.ipxe
Normal file
@ -0,0 +1,68 @@
|
||||
#!ipxe
|
||||
|
||||
set server http://@bootHost@
|
||||
|
||||
# Figure out if client is 64-bit capable
|
||||
cpuid --ext 29 && set arch x86_64 || set arch i386
|
||||
|
||||
isset ${menu-default} || set menu-default exit
|
||||
|
||||
:start
|
||||
menu Welcome to /dev/player0's humble iPXE boot menu
|
||||
item --gap -- Operating Systems
|
||||
iseq ${arch} x86_64 &&
|
||||
item --key n nixos NixOS installer
|
||||
# iseq ${arch} x86_64 &&
|
||||
# item --key a archlinux Arch Linux (archiso x86_64)
|
||||
# iseq ${arch} x86_64 &&
|
||||
# item --key p alpine Alpine Linux
|
||||
item --gap -- Other Options
|
||||
item --key e efi_shell UEFI Shell
|
||||
item --key x xyz netboot.xyz
|
||||
item --key c config iPXE settings
|
||||
item --key s shell Drop to iPXE shell
|
||||
item --key r reboot Reboot
|
||||
item --key q exit Exit (and continue to next boot device)
|
||||
choose --timeout 0 --default ${menu-default} selected || goto cancel
|
||||
goto ${selected}
|
||||
|
||||
:cancel
|
||||
echo You cancelled the menu, dropping you to an iPXE shell
|
||||
|
||||
:shell
|
||||
echo Type 'exit' to go back to the menu
|
||||
shell
|
||||
set menu-default nixos
|
||||
goto start
|
||||
|
||||
:failed
|
||||
echo Booting failed, dropping to shell
|
||||
goto shell
|
||||
|
||||
:reboot
|
||||
reboot
|
||||
|
||||
:exit
|
||||
exit
|
||||
|
||||
:config
|
||||
config
|
||||
set menu-default config
|
||||
goto start
|
||||
|
||||
:efi_shell
|
||||
chain ${server}/efi-shell-${arch}.efi || goto failed
|
||||
|
||||
:xyz
|
||||
chain --autofree https://boot.netboot.xyz || goto failed
|
||||
|
||||
:nixos
|
||||
set cmdline nbd_export=nixos-installer
|
||||
chain ${server}/nixos-installer/boot.ipxe || goto failed
|
||||
|
||||
:archlinux
|
||||
# set mirrorurl https://arch.nul.ie/
|
||||
chain ${server}/arch.ipxe || goto failed
|
||||
|
||||
:alpine
|
||||
chain ${server}/alpine.ipxe || goto failed
|
||||
Loading…
x
Reference in New Issue
Block a user