stockholm/tv/3modules/ejabberd/default.nix
2022-10-08 23:29:23 +02:00

103 lines
2.9 KiB
Nix

{ config, lib, pkgs, ... }@args: with import <stockholm/lib>; let
cfg = config.tv.ejabberd;
gen-dhparam = pkgs.writeDash "gen-dhparam" ''
set -efu
path=$1
bits=2048
# TODO regenerate dhfile after some time?
if ! test -e "$path"; then
${pkgs.openssl}/bin/openssl dhparam "$bits" > "$path"
fi
'';
in {
options.tv.ejabberd = {
enable = mkEnableOption "tv.ejabberd";
certfile = mkOption {
type = types.absolute-pathname;
default = toString <secrets> + "/ejabberd.pem";
};
hosts = mkOption {
type = with types; listOf str;
};
pkgs.ejabberd = mkOption {
type = types.package;
default = pkgs.symlinkJoin {
name = "ejabberd-wrapper";
paths = [
(pkgs.writeDashBin "ejabberdctl" ''
exec ${pkgs.ejabberd}/bin/ejabberdctl \
--config ${toFile "ejabberd.yaml" (import ./config.nix {
inherit pkgs;
config = cfg;
})} \
--ctl-config ${toFile "ejabberdctl.cfg" /* sh */ ''
ERL_OPTIONS='-setcookie ${cfg.stateDir}/.erlang.cookie'
''} \
--logs ${cfg.stateDir} \
--spool ${cfg.stateDir} \
"$@"
'')
pkgs.ejabberd
];
};
};
registration_watchers = mkOption {
type = types.listOf types.str;
default = [
config.krebs.users.tv.mail
];
};
stateDir = mkOption {
type = types.absolute-pathname;
default = "/var/lib/ejabberd";
readOnly = true;
};
};
config = lib.mkIf cfg.enable {
environment.systemPackages = [
(pkgs.symlinkJoin {
name = "ejabberd-sudo-wrapper";
paths = [
(pkgs.writeDashBin "ejabberdctl" ''
exec ${pkgs.systemd}/bin/systemd-run \
--unit=ejabberdctl \
--property=StateDirectory=ejabberd \
--property=User=ejabberd \
--collect \
--pipe \
--quiet \
${cfg.pkgs.ejabberd}/bin/ejabberdctl "$@"
'')
cfg.pkgs.ejabberd
];
})
];
krebs.systemd.services.ejabberd = {};
systemd.services.ejabberd = {
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
serviceConfig = {
ExecStart = pkgs.writeDash "ejabberd" ''
${pkgs.coreutils}/bin/ln -s "$CREDENTIALS_DIRECTORY" /tmp/credentials
${gen-dhparam} ${cfg.stateDir}/dhfile
exec ${cfg.pkgs.ejabberd}/bin/ejabberdctl foreground
'';
LoadCredential = [
"certfile:${cfg.certfile}"
];
PrivateTmp = true;
SyslogIdentifier = "ejabberd";
StateDirectory = "ejabberd";
User = "ejabberd";
DynamicUser = true;
TimeoutStartSec = 60;
};
};
};
}