36 lines
1,011 B
Nix
36 lines
1,011 B
Nix
{ config, lib, ... }:
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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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{
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config = mkMerge [
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# Ephemeral by default - assumes btrfs
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(mkIf (config.flake.manifest.hosts.nixos.${hostName}.machine.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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persistFiles = [
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#TODO: move to system config
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"/etc/machine-id"
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#TODO: move to ssh config
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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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];
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persistDirs = [
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"/var/lib/systemd"
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"/var/lib/nixos"
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];
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})
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];
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};
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}
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