nixpkgs/nixos/modules/services/misc/taskserver.nix
aszlig 411c6f77a3
nixos/taskserver: Add trust option to config file
The server starts up without that option anyway, but it complains about
its value not being set. As we probably want to have access to that
configuration value anyway, let's expose this via the NixOS module as
well.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2016-04-05 18:53:31 +02:00

365 lines
10 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.taskserver;
taskd = "${pkgs.taskserver}/bin/taskd";
mkVal = val:
if val == true then "true"
else if val == false then "false"
else if isList val then concatStringsSep ", " val
else toString val;
mkConfLine = key: val: let
result = "${key} = ${mkVal val}";
in optionalString (val != null && val != []) result;
needToCreateCA = all isNull (with cfg; [
server.key server.cert server.crl caCert
]);
configFile = pkgs.writeText "taskdrc" ''
# systemd related
daemon = false
log = -
# logging
${mkConfLine "debug" cfg.debug}
${mkConfLine "ip.log" cfg.ipLog}
# general
${mkConfLine "ciphers" cfg.ciphers}
${mkConfLine "confirmation" cfg.confirmation}
${mkConfLine "extensions" cfg.extensions}
${mkConfLine "queue.size" cfg.queueSize}
${mkConfLine "request.limit" cfg.requestLimit}
# client
${mkConfLine "client.cert" cfg.client.cert}
${mkConfLine "client.allow" cfg.client.allow}
${mkConfLine "client.deny" cfg.client.deny}
# server
server = ${cfg.server.host}:${toString cfg.server.port}
${mkConfLine "server.crl" cfg.server.crl}
# certificates
${mkConfLine "trust" cfg.server.trust}
${if needToCreateCA then ''
ca.cert = ${cfg.dataDir}/keys/ca.cert
server.cert = ${cfg.dataDir}/keys/server.cert
server.key = ${cfg.dataDir}/keys/server.key
'' else ''
ca.cert = ${cfg.caCert}
server.cert = ${cfg.server.cert}
server.key = ${cfg.server.key}
''}
'';
in {
options = {
services.taskserver = {
enable = mkEnableOption "the Taskwarrior server";
user = mkOption {
type = types.str;
default = "taskd";
description = "User for Taskserver.";
};
group = mkOption {
type = types.str;
default = "taskd";
description = "Group for Taskserver.";
};
dataDir = mkOption {
type = types.path;
default = "/var/lib/taskserver";
description = "Data directory for Taskserver.";
};
caCert = mkOption {
type = types.nullOr types.path;
default = null;
description = "Fully qualified path to the CA certificate.";
};
ciphers = mkOption {
type = types.nullOr types.string;
default = null;
example = "NORMAL";
description = ''
List of GnuTLS ciphers to use. See the GnuTLS documentation for full
details.
'';
};
confirmation = mkOption {
type = types.bool;
default = true;
description = ''
Determines whether certain commands are confirmed.
'';
};
debug = mkOption {
type = types.bool;
default = false;
description = ''
Logs debugging information.
'';
};
extensions = mkOption {
type = types.nullOr types.path;
default = null;
description = ''
Fully qualified path of the Taskserver extension scripts.
Currently there are none.
'';
};
ipLog = mkOption {
type = types.bool;
default = false;
description = ''
Logs the IP addresses of incoming requests.
'';
};
queueSize = mkOption {
type = types.int;
default = 10;
description = ''
Size of the connection backlog, see <citerefentry>
<refentrytitle>listen</refentrytitle>
<manvolnum>2</manvolnum>
</citerefentry>.
'';
};
requestLimit = mkOption {
type = types.int;
default = 1048576;
description = ''
Size limit of incoming requests, in bytes.
'';
};
client = {
allow = mkOption {
type = types.listOf types.str;
default = [];
example = [ "[Tt]ask [2-9]+" ];
description = ''
A list of regular expressions that are matched against the reported
client id (such as <literal>task 2.3.0</literal>).
The values <literal>all</literal> or <literal>none</literal> have
special meaning. Overidden by any entry in the option
<option>services.taskserver.client.deny</option>.
'';
};
cert = mkOption {
type = types.nullOr types.path;
default = null;
description = ''
Fully qualified path of the client cert. This is used by the
<command>client</command> command.
'';
};
deny = mkOption {
type = types.listOf types.str;
default = [];
example = [ "[Tt]ask [2-9]+" ];
description = ''
A list of regular expressions that are matched against the reported
client id (such as <literal>task 2.3.0</literal>).
The values <literal>all</literal> or <literal>none</literal> have
special meaning. Any entry here overrides these in
<option>services.taskserver.client.allow</option>.
'';
};
};
server = {
host = mkOption {
type = types.string;
default = "localhost";
description = ''
The address (IPv4, IPv6 or DNS) of the Taskserver.
'';
};
port = mkOption {
type = types.int;
default = 53589;
description = ''
Port number of the Taskserver.
'';
};
cert = mkOption {
type = types.nullOr types.path;
default = null;
description = "Fully qualified path to the server certificate";
};
crl = mkOption {
type = types.nullOr types.path;
default = null;
description = ''
Fully qualified path to the server certificate revocation list.
'';
};
key = mkOption {
type = types.nullOr types.path;
default = null;
description = ''
Fully qualified path to the server key.
Note that reloading the <literal>taskserver.service</literal> causes
a configuration file reload before the next request is handled.
'';
};
trust = mkOption {
type = types.enum [ "allow all" "strict" ];
default = "strict";
description = ''
Determines how client certificates are validated.
The value <literal>allow all</literal> performs no client
certificate validation. This is not recommended. The value
<literal>strict</literal> causes the client certificate to be
validated against a CA.
'';
};
};
};
};
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.taskserver ];
users.users = optional (cfg.user == "taskd") {
name = "taskd";
uid = config.ids.uids.taskd;
description = "Taskserver user";
group = cfg.group;
};
users.groups = optional (cfg.group == "taskd") {
name = "taskd";
gid = config.ids.gids.taskd;
};
systemd.services.taskserver-ca = mkIf needToCreateCA {
requiredBy = [ "taskserver.service" ];
after = [ "taskserver-init.service" ];
description = "Initialize CA for TaskServer";
serviceConfig.Type = "oneshot";
serviceConfig.UMask = "0077";
script = ''
mkdir -m 0700 -p "${cfg.dataDir}/keys"
chown root:root "${cfg.dataDir}/keys"
if [ ! -e "${cfg.dataDir}/keys/ca.key" ]; then
${pkgs.gnutls}/bin/certtool -p \
--bits 2048 \
--outfile "${cfg.dataDir}/keys/ca.key"
${pkgs.gnutls}/bin/certtool -s \
--template "${pkgs.writeText "taskserver-ca.template" ''
cn = ${cfg.server.host}
cert_signing_key
ca
''}" \
--load-privkey "${cfg.dataDir}/keys/ca.key" \
--outfile "${cfg.dataDir}/keys/ca.cert"
chgrp "${cfg.group}" "${cfg.dataDir}/keys/ca.cert"
chmod g+r "${cfg.dataDir}/keys/ca.cert"
fi
if [ ! -e "${cfg.dataDir}/keys/server.key" ]; then
${pkgs.gnutls}/bin/certtool -p \
--bits 2048 \
--outfile "${cfg.dataDir}/keys/server.key"
${pkgs.gnutls}/bin/certtool -s \
--template "${pkgs.writeText "taskserver-cert.template" ''
cn = ${cfg.server.host}
tls_www_server
encryption_key
signing_key
''}" \
--load-ca-privkey "${cfg.dataDir}/keys/ca.key" \
--load-ca-certificate "${cfg.dataDir}/keys/ca.cert" \
--load-privkey "${cfg.dataDir}/keys/server.key" \
--outfile "${cfg.dataDir}/keys/server.cert"
chgrp "${cfg.group}" "${cfg.dataDir}/keys/server.key"
chmod g+r "${cfg.dataDir}/keys/server.key"
chmod a+r "${cfg.dataDir}/keys/server.cert"
fi
chmod go+x "${cfg.dataDir}/keys"
'';
};
systemd.services.taskserver-init = {
requiredBy = [ "taskserver.service" ];
description = "Initialize Taskserver Data Directory";
preStart = ''
mkdir -m 0770 -p "${cfg.dataDir}"
chown "${cfg.user}:${cfg.group}" "${cfg.dataDir}"
'';
script = ''
${taskd} init
echo "include ${configFile}" > "${cfg.dataDir}/config"
touch "${cfg.dataDir}/.is_initialized"
'';
environment.TASKDDATA = cfg.dataDir;
unitConfig.ConditionPathExists = "!${cfg.dataDir}/.is_initialized";
serviceConfig.Type = "oneshot";
serviceConfig.User = cfg.user;
serviceConfig.Group = cfg.group;
serviceConfig.PermissionsStartOnly = true;
};
systemd.services.taskserver = {
description = "Taskwarrior Server";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
environment.TASKDDATA = cfg.dataDir;
serviceConfig = {
ExecStart = "@${taskd} taskd server";
User = cfg.user;
Group = cfg.group;
};
};
};
}