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pinchflat vpn, testbed random, virt-manager

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RingOfStorms (Joshua Bell) 2025-08-12 17:01:21 -05:00
parent d2eaec6860
commit db6d5161ff
13 changed files with 1645 additions and 64 deletions
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95
hosts/testbed/disko-config.nix Normal file
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{ lib, config, ... }:
let
cfg = config.custom_disko;
in
{
options.custom_disko = {
withSwap = lib.mkOption {
type = lib.types.bool;
default = true;
description = "Whether to create a swap file.";
};
};
config = {
disko.devices = {
disk = {
main = {
device = "/dev/vda";
type = "disk";
content = {
type = "gpt";
partitions = {
ESP = {
priority = 1;
name = "ESP";
start = "1M";
size = "512M";
type = "EF00";
content = {
type = "filesystem";
format = "vfat";
mountpoint = "/boot";
formatOptions = [
"-n"
"NIXBOOT"
];
mountOptions = [ "umask=0077" ];
};
};
root = {
size = "100%";
content = {
type = "btrfs";
extraArgs = [
"-f"
"--label NIXROOT"
];
subvolumes =
let
mountOptions = [
"compress=zstd"
"noatime"
];
in
{
"@root" = {
inherit mountOptions;
mountpoint = "/";
};
"@nix" = {
inherit mountOptions;
mountpoint = "/nix";
};
"@persist" = {
inherit mountOptions;
mountpoint = "/persist";
};
"@snapshots" = {
inherit mountOptions;
mountpoint = "/.snapshots";
};
"@swap" = lib.mkIf cfg.withSwap {
inherit mountOptions;
mountpoint = "/.swapfile";
swap.swapfile.size = 8 * 1024; # 8GB
};
};
};
};
};
postCreateHook = ''
MNTPOINT=$(mktemp -d)
mount -t btrfs "${config.disko.devices.disk.main.content.partitions.root.device}" "$MNTPOINT"
trap 'umount $MNTPOINT; rmdir $MNTPOINT' EXIT
# Ensure the snapshots directory exists
mkdir -p $MNTPOINT/@snapshots
# Place readonly empty root snapshot inside snapshots subvol
btrfs subvolume snapshot -r $MNTPOINT/@root $MNTPOINT/@snapshots/_root-empty
'';
};
};
};
};
fileSystems."/persist".neededForBoot = true;
};
}