2e751c0772
the conversion procedure is simple: - find all things that look like options, ie calls to either `mkOption` or `lib.mkOption` that take an attrset. remember the attrset as the option - for all options, find a `description` attribute who's value is not a call to `mdDoc` or `lib.mdDoc` - textually convert the entire value of the attribute to MD with a few simple regexes (the set from mdize-module.sh) - if the change produced a change in the manual output, discard - if the change kept the manual unchanged, add some text to the description to make sure we've actually found an option. if the manual changes this time, keep the converted description this procedure converts 80% of nixos options to markdown. around 2000 options remain to be inspected, but most of those fail the "does not change the manual output check": currently the MD conversion process does not faithfully convert docbook tags like <code> and <package>, so any option using such tags will not be converted at all.
72 lines
2 KiB
Nix
72 lines
2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.security.googleOsLogin;
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package = pkgs.google-guest-oslogin;
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in
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{
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options = {
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security.googleOsLogin.enable = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Whether to enable Google OS Login.
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The OS Login package enables the following components:
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AuthorizedKeysCommand to query valid SSH keys from the user's OS Login
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profile during ssh authentication phase.
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NSS Module to provide user and group information
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PAM Module for the sshd service, providing authorization and
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authentication support, allowing the system to use data stored in
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Google Cloud IAM permissions to control both, the ability to log into
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an instance, and to perform operations as root (sudo).
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'';
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};
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};
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config = mkIf cfg.enable {
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security.pam.services.sshd = {
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makeHomeDir = true;
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googleOsLoginAccountVerification = true;
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googleOsLoginAuthentication = true;
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};
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security.sudo.extraConfig = ''
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#includedir /run/google-sudoers.d
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'';
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systemd.tmpfiles.rules = [
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"d /run/google-sudoers.d 750 root root -"
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"d /var/google-users.d 750 root root -"
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];
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systemd.packages = [ package ];
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systemd.timers.google-oslogin-cache.wantedBy = [ "timers.target" ];
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# enable the nss module, so user lookups etc. work
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system.nssModules = [ package ];
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system.nssDatabases.passwd = [ "cache_oslogin" "oslogin" ];
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system.nssDatabases.group = [ "cache_oslogin" "oslogin" ];
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# Ugly: sshd refuses to start if a store path is given because /nix/store is group-writable.
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# So indirect by a symlink.
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environment.etc."ssh/authorized_keys_command_google_oslogin" = {
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mode = "0755";
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text = ''
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#!/bin/sh
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exec ${package}/bin/google_authorized_keys "$@"
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'';
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};
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services.openssh.authorizedKeysCommand = "/etc/ssh/authorized_keys_command_google_oslogin %u";
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services.openssh.authorizedKeysCommandUser = "nobody";
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};
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}
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