44 lines
1.1 KiB
Nix
44 lines
1.1 KiB
Nix
{
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config,
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lib,
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inputs,
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...
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}:
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let
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inherit (lib) mkMerge mkIf mkAfter;
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in
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{
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flake.modules.nixos.default =
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{ hostName, ... }:
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let
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inherit (config.flake.manifest.hosts.nixos.${hostName}.machine) root;
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in
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{
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imports = [ inputs.impermanence.nixosModules.impermanence ];
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config = mkMerge [
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# Ephemeral by default - assumes btrfs
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(mkIf (root.ephemeral or true) {
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boot.initrd.postDeviceCommands = mkAfter ''
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mkdir /btrfs_tmp
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mount /dev/root_vg/root /btrfs_tmp
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if [[ -e /btrfs_tmp/root ]]; then
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btrfs subvolume delete "/btrfs_tmp/root"
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fi
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'';
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programs.fuse.userAllowOther = true;
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fileSystems."/persist".neededForBoot = true;
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environment.persistence."/persist" = {
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hideMounts = true;
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files = [
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"/etc/ssh/ssh_host_ed25519_key"
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"/etc/ssh/ssh_host_ed25519_key.pub"
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"/etc/ssh/ssh_host_rsa_key"
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"/etc/ssh/ssh_host_rsa_key.pub"
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"/etc/machine-id"
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];
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};
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})
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];
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};
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}
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