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nixos/stratis: enable booting from stratis volume

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Matthias Berndt 2023-05-04 00:44:36 +02:00
parent 2eed1de920
commit 1632e73b19
2 changed files with 70 additions and 0 deletions
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2
nixos/doc/manual/release-notes/rl-2305.section.md
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@ -476,6 +476,8 @@ In addition to numerous new and upgraded packages, this release has the followin
- `boot.initrd.luks.device.<name>` has a new `tryEmptyPassphrase` option, this is useful for OEM's who need to install an encrypted disk with a future settable passphrase
- there is a new `boot/stratisroot.nix` module that enables booting from a volume managed by the Stratis storage management daemon. Use `boot.stratis.rootPoolUuid` to configure the pool containing the root volume
- Lisp gained a [manual section](https://nixos.org/manual/nixpkgs/stable/#lisp), documenting a new and backwards incompatible interface. The previous interface will be removed in a future release.
- The `bind` module now allows the per-zone `allow-query` setting to be configured (previously it was hard-coded to `any`; it still defaults to `any` to retain compatibility).

68
nixos/modules/system/boot/stratisroot.nix Normal file
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@ -0,0 +1,68 @@
{ config, lib, pkgs, ... }:
let
types = lib.types;
in
{
options.boot.stratis = {
rootPoolUuid = lib.mkOption {
type = types.uniq types.str;
description = lib.mdoc ''
UUID of the stratis pool that the root fs is located in
'';
example = "04c68063-90a5-4235-b9dd-6180098a20d9";
};
};
config = {
assertions = [
{
assertion = config.boot.initrd.systemd.enable;
message = "stratis root fs requires systemd initrd";
}
];
boot.initrd = {
systemd = {
storePaths = [
"${pkgs.stratisd}/lib/udev/stratis-base32-decode"
"${pkgs.stratisd}/lib/udev/stratis-str-cmp"
"${pkgs.lvm2.bin}/bin/dmsetup"
"${pkgs.stratisd}/libexec/stratisd-min"
"${pkgs.stratisd.initrd}/bin/stratis-rootfs-setup"
];
packages = [pkgs.stratisd.initrd];
extraBin = {
thin_check = "${pkgs."thin-provisioning-tools"}/bin/thin_check";
thin_repair = "${pkgs."thin-provisioning-tools"}/bin/thin_repair";
thin_metadata_size = "${pkgs."thin-provisioning-tools"}/bin/thin_metadata_size";
stratis-min = "${pkgs.stratisd}/bin/stratis-min";
};
services = {
stratis-setup = {
description = "setup for Stratis root filesystem";
unitConfig.DefaultDependencies = "no";
conflicts = [ "shutdown.target" ];
onFailure = [ "emergency.target" ];
unitConfig.OnFailureJobMode = "isolate";
wants = [ "stratisd-min.service" "plymouth-start.service" "stratis-clevis-setup.service" ];
wantedBy = [ "initrd.target" ];
after = [ "paths.target" "plymouth-start.service" "stratisd-min.service" ];
before = [ "initrd.target" ];
environment.STRATIS_ROOTFS_UUID = config.boot.stratis.rootPoolUuid;
serviceConfig = {
Type = "oneshot";
ExecStart = "${pkgs.stratisd.initrd}/bin/stratis-rootfs-setup";
RemainAfterExit = "yes";
};
};
};
};
availableKernelModules = [ "dm-thin-pool" "dm-crypt" ] ++ [ "aes" "aes_generic" "blowfish" "twofish"
"serpent" "cbc" "xts" "lrw" "sha1" "sha256" "sha512"
"af_alg" "algif_skcipher"
];
services.udev.packages = [
pkgs.stratisd.initrd
pkgs.lvm2
];
};
};
}