pvv-nixos-config/hosts/buskerud/containers/salsa/modules/kerberos/heimdal.nix

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2024-01-17 00:25:22 +01:00
{ pkgs, config, lib, ... } :
let
inherit (lib) mapAttrs;
cfg = config.services.kerberos_server;
package = config.security.krb5.package;
aclConfigs = lib.pipe cfg.settings.realms [
(mapAttrs (name: { acl, ... }: lib.concatMapStringsSep "\n" (
{ principal, access, target, ... }:
"${principal}\t${lib.concatStringsSep "," (lib.toList access)}\t${target}"
) acl))
(lib.mapAttrsToList (name: text:
{
dbname = "/var/lib/heimdal/heimdal";
acl_file = pkgs.writeText "${name}.acl" text;
}
))
];
finalConfig = cfg.settings // {
realms = mapAttrs (_: v: removeAttrs v [ "acl" ]) (cfg.settings.realms or { });
kdc = (cfg.settings.kdc or { }) // {
database = aclConfigs;
};
};
format = import ../krb5/krb5-conf-format.nix { inherit pkgs lib; } { };
kdcConfFile = format.generate "kdc.conf" finalConfig;
in
{
config = lib.mkIf (cfg.enable && package.passthru.implementation == "heimdal") {
environment.etc."heimdal-kdc/kdc.conf".source = kdcConfFile;
systemd.tmpfiles.settings."10-heimdal" = let
databases = lib.pipe finalConfig.kdc.database [
(map (dbAttrs: dbAttrs.dbname or null))
(lib.filter (x: x != null))
lib.unique
];
in lib.genAttrs databases (_: {
d = {
user = "root";
group = "root";
mode = "0700";
};
});
systemd.services.kadmind = {
description = "Kerberos Administration Daemon";
partOf = [ "kerberos-server.target" ];
wantedBy = [ "kerberos-server.target" ];
serviceConfig = {
ExecStart = "${package}/libexec/kadmind --config-file=/etc/heimdal-kdc/kdc.conf";
Slice = "system-kerberos-server.slice";
StateDirectory = "heimdal";
};
restartTriggers = [ kdcConfFile ];
};
systemd.services.kdc = {
description = "Key Distribution Center daemon";
partOf = [ "kerberos-server.target" ];
wantedBy = [ "kerberos-server.target" ];
serviceConfig = {
ExecStart = "${package}/libexec/kdc --config-file=/etc/heimdal-kdc/kdc.conf";
Slice = "system-kerberos-server.slice";
StateDirectory = "heimdal";
};
restartTriggers = [ kdcConfFile ];
};
systemd.services.kpasswdd = {
description = "Kerberos Password Changing daemon";
partOf = [ "kerberos-server.target" ];
wantedBy = [ "kerberos-server.target" ];
serviceConfig = {
ExecStart = "${package}/libexec/kpasswdd";
Slice = "system-kerberos-server.slice";
StateDirectory = "heimdal";
};
restartTriggers = [ kdcConfFile ];
};
};
}