nixpkgs/nixos/modules/services/misc/taskserver.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.taskserver;
nixos/taskserver: Refactor module for CA creation Now the service starts up if only the services.taskserver.enable option is set to true. We now also have three systemd services (started in this order): * taskserver-init: For creating the necessary data directory and also includes a refecence to the configuration file in the Nix store. * taskserver-ca: Only enabled if none of the server.key, server.cert, server.crl and caCert options are set, so we can allow for certificates that are issued by another CA. This service creates a new CA key+certificate and a server key+certificate and signs the latter using the CA key. The permissions of these keys/certs are set quite strictly to allow only the root user to sign certificates. * taskserver: The main Taskserver service which just starts taskd. We now also log to stdout and thus to the journal. Of course, there are still a few problems left to solve, for instance: * The CA currently only signs the server certificates, so it's only usable for clients if the server doesn't validate client certs (which is kinda pointless). * Using "taskd <command>" is currently still a bit awkward to use, so we need to properly wrap it in environment.systemPackages to set the dataDir by default. * There are still a few configuration options left to include, for example the "trust" option. * We might want to introduce an extraConfig option. * It might be useful to allow for declarative configuration of organisations and users, especially when it comes to creating client certificates. * The right signal has to be sent for the taskserver service to reload properly. * Currently the CA and server certificates are created using server.host as the common name and doesn't set additional certificate information. This could be improved by adding options that explicitly set that information. As for the config file, we might need to patch taskd to allow for setting not only --data but also a --cfgfile, which then omits the ${dataDir}/config file. We can still use the "include" directive from the file specified using --cfgfile in order to chainload ${dataDir}/config. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-27 19:52:55 +00:00
taskd = "${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}
nixos/taskserver: Refactor module for CA creation Now the service starts up if only the services.taskserver.enable option is set to true. We now also have three systemd services (started in this order): * taskserver-init: For creating the necessary data directory and also includes a refecence to the configuration file in the Nix store. * taskserver-ca: Only enabled if none of the server.key, server.cert, server.crl and caCert options are set, so we can allow for certificates that are issued by another CA. This service creates a new CA key+certificate and a server key+certificate and signs the latter using the CA key. The permissions of these keys/certs are set quite strictly to allow only the root user to sign certificates. * taskserver: The main Taskserver service which just starts taskd. We now also log to stdout and thus to the journal. Of course, there are still a few problems left to solve, for instance: * The CA currently only signs the server certificates, so it's only usable for clients if the server doesn't validate client certs (which is kinda pointless). * Using "taskd <command>" is currently still a bit awkward to use, so we need to properly wrap it in environment.systemPackages to set the dataDir by default. * There are still a few configuration options left to include, for example the "trust" option. * We might want to introduce an extraConfig option. * It might be useful to allow for declarative configuration of organisations and users, especially when it comes to creating client certificates. * The right signal has to be sent for the taskserver service to reload properly. * Currently the CA and server certificates are created using server.host as the common name and doesn't set additional certificate information. This could be improved by adding options that explicitly set that information. As for the config file, we might need to patch taskd to allow for setting not only --data but also a --cfgfile, which then omits the ${dataDir}/config file. We can still use the "include" directive from the file specified using --cfgfile in order to chainload ${dataDir}/config. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-27 19:52:55 +00:00
${if needToCreateCA then ''
ca.cert = ${cfg.dataDir}/keys/ca.cert
server.cert = ${cfg.dataDir}/keys/server.cert
server.key = ${cfg.dataDir}/keys/server.key
nixos/taskserver: Refactor module for CA creation Now the service starts up if only the services.taskserver.enable option is set to true. We now also have three systemd services (started in this order): * taskserver-init: For creating the necessary data directory and also includes a refecence to the configuration file in the Nix store. * taskserver-ca: Only enabled if none of the server.key, server.cert, server.crl and caCert options are set, so we can allow for certificates that are issued by another CA. This service creates a new CA key+certificate and a server key+certificate and signs the latter using the CA key. The permissions of these keys/certs are set quite strictly to allow only the root user to sign certificates. * taskserver: The main Taskserver service which just starts taskd. We now also log to stdout and thus to the journal. Of course, there are still a few problems left to solve, for instance: * The CA currently only signs the server certificates, so it's only usable for clients if the server doesn't validate client certs (which is kinda pointless). * Using "taskd <command>" is currently still a bit awkward to use, so we need to properly wrap it in environment.systemPackages to set the dataDir by default. * There are still a few configuration options left to include, for example the "trust" option. * We might want to introduce an extraConfig option. * It might be useful to allow for declarative configuration of organisations and users, especially when it comes to creating client certificates. * The right signal has to be sent for the taskserver service to reload properly. * Currently the CA and server certificates are created using server.host as the common name and doesn't set additional certificate information. This could be improved by adding options that explicitly set that information. As for the config file, we might need to patch taskd to allow for setting not only --data but also a --cfgfile, which then omits the ${dataDir}/config file. We can still use the "include" directive from the file specified using --cfgfile in order to chainload ${dataDir}/config. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-27 19:52:55 +00:00
'' else ''
ca.cert = ${cfg.caCert}
server.cert = ${cfg.server.cert}
server.key = ${cfg.server.key}
nixos/taskserver: Refactor module for CA creation Now the service starts up if only the services.taskserver.enable option is set to true. We now also have three systemd services (started in this order): * taskserver-init: For creating the necessary data directory and also includes a refecence to the configuration file in the Nix store. * taskserver-ca: Only enabled if none of the server.key, server.cert, server.crl and caCert options are set, so we can allow for certificates that are issued by another CA. This service creates a new CA key+certificate and a server key+certificate and signs the latter using the CA key. The permissions of these keys/certs are set quite strictly to allow only the root user to sign certificates. * taskserver: The main Taskserver service which just starts taskd. We now also log to stdout and thus to the journal. Of course, there are still a few problems left to solve, for instance: * The CA currently only signs the server certificates, so it's only usable for clients if the server doesn't validate client certs (which is kinda pointless). * Using "taskd <command>" is currently still a bit awkward to use, so we need to properly wrap it in environment.systemPackages to set the dataDir by default. * There are still a few configuration options left to include, for example the "trust" option. * We might want to introduce an extraConfig option. * It might be useful to allow for declarative configuration of organisations and users, especially when it comes to creating client certificates. * The right signal has to be sent for the taskserver service to reload properly. * Currently the CA and server certificates are created using server.host as the common name and doesn't set additional certificate information. This could be improved by adding options that explicitly set that information. As for the config file, we might need to patch taskd to allow for setting not only --data but also a --cfgfile, which then omits the ${dataDir}/config file. We can still use the "include" directive from the file specified using --cfgfile in order to chainload ${dataDir}/config. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-27 19:52:55 +00:00
''}
'';
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.str;
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.str;
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;
};
nixos/taskserver: Refactor module for CA creation Now the service starts up if only the services.taskserver.enable option is set to true. We now also have three systemd services (started in this order): * taskserver-init: For creating the necessary data directory and also includes a refecence to the configuration file in the Nix store. * taskserver-ca: Only enabled if none of the server.key, server.cert, server.crl and caCert options are set, so we can allow for certificates that are issued by another CA. This service creates a new CA key+certificate and a server key+certificate and signs the latter using the CA key. The permissions of these keys/certs are set quite strictly to allow only the root user to sign certificates. * taskserver: The main Taskserver service which just starts taskd. We now also log to stdout and thus to the journal. Of course, there are still a few problems left to solve, for instance: * The CA currently only signs the server certificates, so it's only usable for clients if the server doesn't validate client certs (which is kinda pointless). * Using "taskd <command>" is currently still a bit awkward to use, so we need to properly wrap it in environment.systemPackages to set the dataDir by default. * There are still a few configuration options left to include, for example the "trust" option. * We might want to introduce an extraConfig option. * It might be useful to allow for declarative configuration of organisations and users, especially when it comes to creating client certificates. * The right signal has to be sent for the taskserver service to reload properly. * Currently the CA and server certificates are created using server.host as the common name and doesn't set additional certificate information. This could be improved by adding options that explicitly set that information. As for the config file, we might need to patch taskd to allow for setting not only --data but also a --cfgfile, which then omits the ${dataDir}/config file. We can still use the "include" directive from the file specified using --cfgfile in order to chainload ${dataDir}/config. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-27 19:52:55 +00:00
systemd.services.taskserver-ca = mkIf needToCreateCA {
requiredBy = [ "taskserver.service" ];
after = [ "taskserver-init.service" ];
description = "Initialize CA for TaskServer";
serviceConfig.Type = "oneshot";
serviceConfig.UMask = "0077";
script = ''
mkdir -m 0700 -p "${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
nixos/taskserver: Refactor module for CA creation Now the service starts up if only the services.taskserver.enable option is set to true. We now also have three systemd services (started in this order): * taskserver-init: For creating the necessary data directory and also includes a refecence to the configuration file in the Nix store. * taskserver-ca: Only enabled if none of the server.key, server.cert, server.crl and caCert options are set, so we can allow for certificates that are issued by another CA. This service creates a new CA key+certificate and a server key+certificate and signs the latter using the CA key. The permissions of these keys/certs are set quite strictly to allow only the root user to sign certificates. * taskserver: The main Taskserver service which just starts taskd. We now also log to stdout and thus to the journal. Of course, there are still a few problems left to solve, for instance: * The CA currently only signs the server certificates, so it's only usable for clients if the server doesn't validate client certs (which is kinda pointless). * Using "taskd <command>" is currently still a bit awkward to use, so we need to properly wrap it in environment.systemPackages to set the dataDir by default. * There are still a few configuration options left to include, for example the "trust" option. * We might want to introduce an extraConfig option. * It might be useful to allow for declarative configuration of organisations and users, especially when it comes to creating client certificates. * The right signal has to be sent for the taskserver service to reload properly. * Currently the CA and server certificates are created using server.host as the common name and doesn't set additional certificate information. This could be improved by adding options that explicitly set that information. As for the config file, we might need to patch taskd to allow for setting not only --data but also a --cfgfile, which then omits the ${dataDir}/config file. We can still use the "include" directive from the file specified using --cfgfile in order to chainload ${dataDir}/config. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-27 19:52:55 +00:00
if [ ! -e "${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 = ''
nixos/taskserver: Refactor module for CA creation Now the service starts up if only the services.taskserver.enable option is set to true. We now also have three systemd services (started in this order): * taskserver-init: For creating the necessary data directory and also includes a refecence to the configuration file in the Nix store. * taskserver-ca: Only enabled if none of the server.key, server.cert, server.crl and caCert options are set, so we can allow for certificates that are issued by another CA. This service creates a new CA key+certificate and a server key+certificate and signs the latter using the CA key. The permissions of these keys/certs are set quite strictly to allow only the root user to sign certificates. * taskserver: The main Taskserver service which just starts taskd. We now also log to stdout and thus to the journal. Of course, there are still a few problems left to solve, for instance: * The CA currently only signs the server certificates, so it's only usable for clients if the server doesn't validate client certs (which is kinda pointless). * Using "taskd <command>" is currently still a bit awkward to use, so we need to properly wrap it in environment.systemPackages to set the dataDir by default. * There are still a few configuration options left to include, for example the "trust" option. * We might want to introduce an extraConfig option. * It might be useful to allow for declarative configuration of organisations and users, especially when it comes to creating client certificates. * The right signal has to be sent for the taskserver service to reload properly. * Currently the CA and server certificates are created using server.host as the common name and doesn't set additional certificate information. This could be improved by adding options that explicitly set that information. As for the config file, we might need to patch taskd to allow for setting not only --data but also a --cfgfile, which then omits the ${dataDir}/config file. We can still use the "include" directive from the file specified using --cfgfile in order to chainload ${dataDir}/config. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-27 19:52:55 +00:00
mkdir -m 0770 -p "${cfg.dataDir}"
chown "${cfg.user}:${cfg.group}" "${cfg.dataDir}"
'';
nixos/taskserver: Refactor module for CA creation Now the service starts up if only the services.taskserver.enable option is set to true. We now also have three systemd services (started in this order): * taskserver-init: For creating the necessary data directory and also includes a refecence to the configuration file in the Nix store. * taskserver-ca: Only enabled if none of the server.key, server.cert, server.crl and caCert options are set, so we can allow for certificates that are issued by another CA. This service creates a new CA key+certificate and a server key+certificate and signs the latter using the CA key. The permissions of these keys/certs are set quite strictly to allow only the root user to sign certificates. * taskserver: The main Taskserver service which just starts taskd. We now also log to stdout and thus to the journal. Of course, there are still a few problems left to solve, for instance: * The CA currently only signs the server certificates, so it's only usable for clients if the server doesn't validate client certs (which is kinda pointless). * Using "taskd <command>" is currently still a bit awkward to use, so we need to properly wrap it in environment.systemPackages to set the dataDir by default. * There are still a few configuration options left to include, for example the "trust" option. * We might want to introduce an extraConfig option. * It might be useful to allow for declarative configuration of organisations and users, especially when it comes to creating client certificates. * The right signal has to be sent for the taskserver service to reload properly. * Currently the CA and server certificates are created using server.host as the common name and doesn't set additional certificate information. This could be improved by adding options that explicitly set that information. As for the config file, we might need to patch taskd to allow for setting not only --data but also a --cfgfile, which then omits the ${dataDir}/config file. We can still use the "include" directive from the file specified using --cfgfile in order to chainload ${dataDir}/config. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-27 19:52:55 +00:00
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 = {
nixos/taskserver: Refactor module for CA creation Now the service starts up if only the services.taskserver.enable option is set to true. We now also have three systemd services (started in this order): * taskserver-init: For creating the necessary data directory and also includes a refecence to the configuration file in the Nix store. * taskserver-ca: Only enabled if none of the server.key, server.cert, server.crl and caCert options are set, so we can allow for certificates that are issued by another CA. This service creates a new CA key+certificate and a server key+certificate and signs the latter using the CA key. The permissions of these keys/certs are set quite strictly to allow only the root user to sign certificates. * taskserver: The main Taskserver service which just starts taskd. We now also log to stdout and thus to the journal. Of course, there are still a few problems left to solve, for instance: * The CA currently only signs the server certificates, so it's only usable for clients if the server doesn't validate client certs (which is kinda pointless). * Using "taskd <command>" is currently still a bit awkward to use, so we need to properly wrap it in environment.systemPackages to set the dataDir by default. * There are still a few configuration options left to include, for example the "trust" option. * We might want to introduce an extraConfig option. * It might be useful to allow for declarative configuration of organisations and users, especially when it comes to creating client certificates. * The right signal has to be sent for the taskserver service to reload properly. * Currently the CA and server certificates are created using server.host as the common name and doesn't set additional certificate information. This could be improved by adding options that explicitly set that information. As for the config file, we might need to patch taskd to allow for setting not only --data but also a --cfgfile, which then omits the ${dataDir}/config file. We can still use the "include" directive from the file specified using --cfgfile in order to chainload ${dataDir}/config. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-27 19:52:55 +00:00
ExecStart = "@${taskd} taskd server";
User = cfg.user;
Group = cfg.group;
};
};
};
}