mirror of
https://github.com/ryan4yin/nix-config.git
synced 2026-11-13 12:13:46 +01:00
Ryan Yin
2c7629000f
Drop the now-meaningless kubevirt- prefix and move the hosts out of hosts/k8s/, following the existing 12kingdoms-shoukei layout: the directory and output carry the theme prefix while the configuration, hostname and colmena target are the bare name (shoryu, shushou, youko). - hosts/k8s/kubevirt-* -> hosts/12kingdoms-*; the shared disko config becomes host-disko-fs.nix; the now-different relative imports are fixed - outputs, vars/networking.nix keys, the Justfile recipes/tags, the eval tests and the docs follow - colmena reaches these hosts by IP (a new targetHost override), since their DNS name changes with the hostname and is not resolvable until the router learns it
83 lines
2.5 KiB
Nix
83 lines
2.5 KiB
Nix
{
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pkgs,
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lib,
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mylib,
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...
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}:
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let
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genXml = import (mylib.relativeToRoot "lib/genLibvirtDomainXml.nix") { inherit lib; };
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# Declarative libvirt domains. The disk image is a one-time copy (reflink) of
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# the VM's former KubeVirt disk, e.g.:
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# cp --reflink=auto /var/lib/rancher/k3s/storage/vms/<vm>-disk/disk.img \
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# /var/lib/libvirt/images/<vm>.img
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domains = {
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idols-kana = {
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uuid = "e744f563-7c7d-45e6-bc71-61980790208d";
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vcpu = 4;
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memoryGiB = 8;
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disk = "/var/lib/libvirt/images/idols-kana.img";
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mac = "52:54:00:5a:51:02";
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vncPort = 5902;
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};
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idols-ruby = {
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uuid = "3a959d02-11de-498d-bce7-85f78713ca63";
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vcpu = 4;
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memoryGiB = 8;
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disk = "/var/lib/libvirt/images/idols-ruby.img";
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mac = "52:54:00:5a:51:03";
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vncPort = 5903;
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};
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};
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in
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{
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# libvirt/QEMU -- runs the VMs directly instead of on KubeVirt. Used for the
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# VMs that need to feel like a real machine (the agent desktops kana/ruby) and
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# for Windows.
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virtualisation.libvirtd.enable = true;
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# The VMs attach to our existing bridge (br0), so allow it explicitly.
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virtualisation.libvirtd.allowedBridges = [ "br0" ];
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# We don't want libvirt's NAT network (virbr0): every VM uses br0.
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systemd.services.libvirt-disable-default-net = {
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description = "Disable libvirt's default NAT network";
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after = [ "libvirtd.service" ];
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requires = [ "libvirtd.service" ];
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wantedBy = [ "multi-user.target" ];
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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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script = ''
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${pkgs.libvirt}/bin/virsh net-destroy default || true
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${pkgs.libvirt}/bin/virsh net-autostart --disable default || true
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'';
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};
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# Define (and autostart) the declarative domains on every activation.
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systemd.services.libvirt-define-domains = {
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description = "Define the declarative libvirt domains";
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after = [ "libvirtd.service" ];
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requires = [ "libvirtd.service" ];
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wantedBy = [ "multi-user.target" ];
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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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script = lib.concatStringsSep "\n" (
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lib.mapAttrsToList (name: args: ''
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${pkgs.libvirt}/bin/virsh define ${
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pkgs.writeText "libvirt-domain-${name}.xml" (genXml (args // { inherit name; }))
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}
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${pkgs.libvirt}/bin/virsh autostart ${name} || true
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'') domains
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);
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};
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# VM disk images (the declarative domains reference files here).
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systemd.tmpfiles.rules = [
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"d /var/lib/libvirt/images 0755 root root -"
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];
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}
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