nixpkgs/nixos/modules/services/security/privacyidea.nix
2021-10-04 12:47:20 +02:00

304 lines
9.1 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.privacyidea;
uwsgi = pkgs.uwsgi.override { plugins = [ "python3" ]; };
python = uwsgi.python3;
penv = python.withPackages (const [ pkgs.privacyidea ]);
logCfg = pkgs.writeText "privacyidea-log.cfg" ''
[formatters]
keys=detail
[handlers]
keys=stream
[formatter_detail]
class=privacyidea.lib.log.SecureFormatter
format=[%(asctime)s][%(process)d][%(thread)d][%(levelname)s][%(name)s:%(lineno)d] %(message)s
[handler_stream]
class=StreamHandler
level=NOTSET
formatter=detail
args=(sys.stdout,)
[loggers]
keys=root,privacyidea
[logger_privacyidea]
handlers=stream
qualname=privacyidea
level=INFO
[logger_root]
handlers=stream
level=ERROR
'';
piCfgFile = pkgs.writeText "privacyidea.cfg" ''
SUPERUSER_REALM = [ '${concatStringsSep "', '" cfg.superuserRealm}' ]
SQLALCHEMY_DATABASE_URI = 'postgresql:///privacyidea'
SECRET_KEY = '${cfg.secretKey}'
PI_PEPPER = '${cfg.pepper}'
PI_ENCFILE = '${cfg.encFile}'
PI_AUDIT_KEY_PRIVATE = '${cfg.auditKeyPrivate}'
PI_AUDIT_KEY_PUBLIC = '${cfg.auditKeyPublic}'
PI_LOGCONFIG = '${logCfg}'
${cfg.extraConfig}
'';
in
{
options = {
services.privacyidea = {
enable = mkEnableOption "PrivacyIDEA";
environmentFile = mkOption {
type = types.nullOr types.path;
default = null;
example = "/root/privacyidea.env";
description = ''
File to load as environment file. Environment variables
from this file will be interpolated into the config file
using <package>envsubst</package> which is helpful for specifying
secrets:
<programlisting>
{ <xref linkend="opt-services.privacyidea.secretKey" /> = "$SECRET"; }
</programlisting>
The environment-file can now specify the actual secret key:
<programlisting>
SECRET=veryverytopsecret
</programlisting>
'';
};
stateDir = mkOption {
type = types.str;
default = "/var/lib/privacyidea";
description = ''
Directory where all PrivacyIDEA files will be placed by default.
'';
};
superuserRealm = mkOption {
type = types.listOf types.str;
default = [ "super" "administrators" ];
description = ''
The realm where users are allowed to login as administrators.
'';
};
secretKey = mkOption {
type = types.str;
example = "t0p s3cr3t";
description = ''
This is used to encrypt the auth_token.
'';
};
pepper = mkOption {
type = types.str;
example = "Never know...";
description = ''
This is used to encrypt the admin passwords.
'';
};
encFile = mkOption {
type = types.str;
default = "${cfg.stateDir}/enckey";
description = ''
This is used to encrypt the token data and token passwords
'';
};
auditKeyPrivate = mkOption {
type = types.str;
default = "${cfg.stateDir}/private.pem";
description = ''
Private Key for signing the audit log.
'';
};
auditKeyPublic = mkOption {
type = types.str;
default = "${cfg.stateDir}/public.pem";
description = ''
Public key for checking signatures of the audit log.
'';
};
adminPasswordFile = mkOption {
type = types.path;
description = "File containing password for the admin user";
};
adminEmail = mkOption {
type = types.str;
example = "admin@example.com";
description = "Mail address for the admin user";
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = ''
Extra configuration options for pi.cfg.
'';
};
user = mkOption {
type = types.str;
default = "privacyidea";
description = "User account under which PrivacyIDEA runs.";
};
group = mkOption {
type = types.str;
default = "privacyidea";
description = "Group account under which PrivacyIDEA runs.";
};
ldap-proxy = {
enable = mkEnableOption "PrivacyIDEA LDAP Proxy";
configFile = mkOption {
type = types.path;
description = ''
Path to PrivacyIDEA LDAP Proxy configuration (proxy.ini).
'';
};
user = mkOption {
type = types.str;
default = "pi-ldap-proxy";
description = "User account under which PrivacyIDEA LDAP proxy runs.";
};
group = mkOption {
type = types.str;
default = "pi-ldap-proxy";
description = "Group account under which PrivacyIDEA LDAP proxy runs.";
};
};
};
};
config = mkMerge [
(mkIf cfg.enable {
environment.systemPackages = [ pkgs.privacyidea ];
services.postgresql.enable = mkDefault true;
systemd.services.privacyidea = let
piuwsgi = pkgs.writeText "uwsgi.json" (builtins.toJSON {
uwsgi = {
plugins = [ "python3" ];
pythonpath = "${penv}/${uwsgi.python3.sitePackages}";
socket = "/run/privacyidea/socket";
uid = cfg.user;
gid = cfg.group;
chmod-socket = 770;
chown-socket = "${cfg.user}:nginx";
chdir = cfg.stateDir;
wsgi-file = "${penv}/etc/privacyidea/privacyideaapp.wsgi";
processes = 4;
harakiri = 60;
reload-mercy = 8;
stats = "/run/privacyidea/stats.socket";
max-requests = 2000;
limit-as = 1024;
reload-on-as = 512;
reload-on-rss = 256;
no-orphans = true;
vacuum = true;
};
});
in {
wantedBy = [ "multi-user.target" ];
after = [ "postgresql.service" ];
path = with pkgs; [ openssl ];
environment.PRIVACYIDEA_CONFIGFILE = "${cfg.stateDir}/privacyidea.cfg";
preStart = let
pi-manage = "${config.security.sudo.package}/bin/sudo -u privacyidea -HE ${penv}/bin/pi-manage";
pgsu = config.services.postgresql.superUser;
psql = config.services.postgresql.package;
in ''
mkdir -p ${cfg.stateDir} /run/privacyidea
chown ${cfg.user}:${cfg.group} -R ${cfg.stateDir} /run/privacyidea
umask 077
${lib.getBin pkgs.envsubst}/bin/envsubst -o ${cfg.stateDir}/privacyidea.cfg \
-i "${piCfgFile}"
chown ${cfg.user}:${cfg.group} ${cfg.stateDir}/privacyidea.cfg
if ! test -e "${cfg.stateDir}/db-created"; then
${config.security.sudo.package}/bin/sudo -u ${pgsu} ${psql}/bin/createuser --no-superuser --no-createdb --no-createrole ${cfg.user}
${config.security.sudo.package}/bin/sudo -u ${pgsu} ${psql}/bin/createdb --owner ${cfg.user} privacyidea
${pi-manage} create_enckey
${pi-manage} create_audit_keys
${pi-manage} createdb
${pi-manage} admin add admin -e ${cfg.adminEmail} -p "$(cat ${cfg.adminPasswordFile})"
${pi-manage} db stamp head -d ${penv}/lib/privacyidea/migrations
touch "${cfg.stateDir}/db-created"
chmod g+r "${cfg.stateDir}/enckey" "${cfg.stateDir}/private.pem"
fi
${pi-manage} db upgrade -d ${penv}/lib/privacyidea/migrations
'';
serviceConfig = {
Type = "notify";
ExecStart = "${uwsgi}/bin/uwsgi --json ${piuwsgi}";
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
EnvironmentFile = lib.mkIf (cfg.environmentFile != null) cfg.environmentFile;
ExecStop = "${pkgs.coreutils}/bin/kill -INT $MAINPID";
NotifyAccess = "main";
KillSignal = "SIGQUIT";
};
};
users.users.privacyidea = mkIf (cfg.user == "privacyidea") {
group = cfg.group;
isSystemUser = true;
};
users.groups.privacyidea = mkIf (cfg.group == "privacyidea") {};
})
(mkIf cfg.ldap-proxy.enable {
systemd.services.privacyidea-ldap-proxy = let
ldap-proxy-env = pkgs.python2.withPackages (ps: [ ps.privacyidea-ldap-proxy ]);
in {
description = "privacyIDEA LDAP proxy";
wantedBy = [ "multi-user.target" ];
serviceConfig = {
User = cfg.ldap-proxy.user;
Group = cfg.ldap-proxy.group;
ExecStart = ''
${ldap-proxy-env}/bin/twistd \
--nodaemon \
--pidfile= \
-u ${cfg.ldap-proxy.user} \
-g ${cfg.ldap-proxy.group} \
ldap-proxy \
-c ${cfg.ldap-proxy.configFile}
'';
Restart = "always";
};
};
users.users.pi-ldap-proxy = mkIf (cfg.ldap-proxy.user == "pi-ldap-proxy") {
group = cfg.ldap-proxy.group;
isSystemUser = true;
};
users.groups.pi-ldap-proxy = mkIf (cfg.ldap-proxy.group == "pi-ldap-proxy") {};
})
];
}