nixos/initrd-ssh: Add authorizedKeyFiles option

This commit is contained in:
Jonas Heinrich 2023-12-30 18:42:40 +01:00
parent 99c3b54654
commit 30036c3d10
2 changed files with 28 additions and 4 deletions

View file

@ -261,6 +261,8 @@ The pre-existing [services.ankisyncd](#opt-services.ankisyncd.enable) has been m
- The Matrix homeserver [Synapse](https://element-hq.github.io/synapse/) module now supports configuring UNIX domain socket [listeners](#opt-services.matrix-synapse.settings.listeners) through the `path` option.
The default replication worker on the main instance has been migrated away from TCP sockets to UNIX domain sockets.
- The initrd ssh daemon module got a new option to add authorized keys via a list of files using `boot.initrd.network.ssh.authorizedKeyFiles`.
- Programs written in [Nim](https://nim-lang.org/) are built with libraries selected by lockfiles.
The `nimPackages` and `nim2Packages` sets have been removed.
See https://nixos.org/manual/nixpkgs/unstable#nim for more information.

View file

@ -93,6 +93,21 @@ in
defaultText = literalExpression "config.users.users.root.openssh.authorizedKeys.keys";
description = lib.mdDoc ''
Authorized keys for the root user on initrd.
You can combine the `authorizedKeys` and `authorizedKeyFiles` options.
'';
example = [
"ssh-rsa AAAAB3NzaC1yc2etc/etc/etcjwrsh8e596z6J0l7 example@host"
"ssh-ed25519 AAAAC3NzaCetcetera/etceteraJZMfk3QPfQ foo@bar"
];
};
authorizedKeyFiles = mkOption {
type = types.listOf types.path;
default = config.users.users.root.openssh.authorizedKeys.keyFiles;
defaultText = literalExpression "config.users.users.root.openssh.authorizedKeys.keyFiles";
description = lib.mdDoc ''
Authorized keys taken from files for the root user on initrd.
You can combine the `authorizedKeyFiles` and `authorizedKeys` options.
'';
};
@ -152,7 +167,7 @@ in
in mkIf enabled {
assertions = [
{
assertion = cfg.authorizedKeys != [];
assertion = cfg.authorizedKeys != [] || cfg.authorizedKeyFiles != [];
message = "You should specify at least one authorized key for initrd SSH";
}
@ -206,6 +221,9 @@ in
${concatStrings (map (key: ''
echo ${escapeShellArg key} >> /root/.ssh/authorized_keys
'') cfg.authorizedKeys)}
${concatStrings (map (keyFile: ''
cat ${keyFile} >> /root/.ssh/authorized_keys
'') cfg.authorizedKeyFiles)}
${flip concatMapStrings cfg.hostKeys (path: ''
# keys from Nix store are world-readable, which sshd doesn't like
@ -236,9 +254,13 @@ in
users.root.shell = mkIf (config.boot.initrd.network.ssh.shell != null) config.boot.initrd.network.ssh.shell;
contents."/etc/ssh/authorized_keys.d/root".text =
concatStringsSep "\n" config.boot.initrd.network.ssh.authorizedKeys;
contents."/etc/ssh/sshd_config".text = sshdConfig;
contents = {
"/etc/ssh/sshd_config".text = sshdConfig;
"/etc/ssh/authorized_keys.d/root".text =
concatStringsSep "\n" (
config.boot.initrd.network.ssh.authorizedKeys ++
(map (file: lib.fileContents file) config.boot.initrd.network.ssh.authorizedKeyFiles));
};
storePaths = ["${package}/bin/sshd"];
services.sshd = {