366 lines
12 KiB
Nix
366 lines
12 KiB
Nix
{ config, lib, options, pkgs, ... }:
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with lib;
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let
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cfg = config.services.privacyidea;
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opt = options.services.privacyidea;
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uwsgi = pkgs.uwsgi.override { plugins = [ "python3" ]; python3 = pkgs.python39; };
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python = uwsgi.python3;
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penv = python.withPackages (const [ pkgs.privacyidea ]);
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logCfg = pkgs.writeText "privacyidea-log.cfg" ''
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[formatters]
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keys=detail
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[handlers]
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keys=stream
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[formatter_detail]
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class=privacyidea.lib.log.SecureFormatter
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format=[%(asctime)s][%(process)d][%(thread)d][%(levelname)s][%(name)s:%(lineno)d] %(message)s
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[handler_stream]
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class=StreamHandler
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level=NOTSET
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formatter=detail
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args=(sys.stdout,)
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[loggers]
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keys=root,privacyidea
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[logger_privacyidea]
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handlers=stream
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qualname=privacyidea
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level=INFO
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[logger_root]
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handlers=stream
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level=ERROR
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'';
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piCfgFile = pkgs.writeText "privacyidea.cfg" ''
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SUPERUSER_REALM = [ '${concatStringsSep "', '" cfg.superuserRealm}' ]
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SQLALCHEMY_DATABASE_URI = 'postgresql:///privacyidea'
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SECRET_KEY = '${cfg.secretKey}'
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PI_PEPPER = '${cfg.pepper}'
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PI_ENCFILE = '${cfg.encFile}'
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PI_AUDIT_KEY_PRIVATE = '${cfg.auditKeyPrivate}'
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PI_AUDIT_KEY_PUBLIC = '${cfg.auditKeyPublic}'
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PI_LOGCONFIG = '${logCfg}'
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${cfg.extraConfig}
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'';
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renderValue = x:
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if isList x then concatMapStringsSep "," (x: ''"${x}"'') x
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else if isString x && hasInfix "," x then ''"${x}"''
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else x;
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ldapProxyConfig = pkgs.writeText "ldap-proxy.ini"
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(generators.toINI {}
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(flip mapAttrs cfg.ldap-proxy.settings
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(const (mapAttrs (const renderValue)))));
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in
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{
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options = {
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services.privacyidea = {
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enable = mkEnableOption "PrivacyIDEA";
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environmentFile = mkOption {
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type = types.nullOr types.path;
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default = null;
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example = "/root/privacyidea.env";
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description = ''
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File to load as environment file. Environment variables
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from this file will be interpolated into the config file
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using <package>envsubst</package> which is helpful for specifying
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secrets:
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<programlisting>
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{ <xref linkend="opt-services.privacyidea.secretKey"/> = "$SECRET"; }
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</programlisting>
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The environment-file can now specify the actual secret key:
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<programlisting>
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SECRET=veryverytopsecret
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</programlisting>
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'';
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};
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stateDir = mkOption {
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type = types.str;
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default = "/var/lib/privacyidea";
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description = lib.mdDoc ''
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Directory where all PrivacyIDEA files will be placed by default.
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'';
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};
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superuserRealm = mkOption {
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type = types.listOf types.str;
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default = [ "super" "administrators" ];
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description = lib.mdDoc ''
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The realm where users are allowed to login as administrators.
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'';
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};
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secretKey = mkOption {
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type = types.str;
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example = "t0p s3cr3t";
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description = lib.mdDoc ''
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This is used to encrypt the auth_token.
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'';
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};
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pepper = mkOption {
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type = types.str;
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example = "Never know...";
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description = lib.mdDoc ''
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This is used to encrypt the admin passwords.
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'';
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};
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encFile = mkOption {
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type = types.str;
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default = "${cfg.stateDir}/enckey";
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defaultText = literalExpression ''"''${config.${opt.stateDir}}/enckey"'';
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description = lib.mdDoc ''
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This is used to encrypt the token data and token passwords
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'';
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};
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auditKeyPrivate = mkOption {
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type = types.str;
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default = "${cfg.stateDir}/private.pem";
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defaultText = literalExpression ''"''${config.${opt.stateDir}}/private.pem"'';
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description = lib.mdDoc ''
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Private Key for signing the audit log.
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'';
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};
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auditKeyPublic = mkOption {
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type = types.str;
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default = "${cfg.stateDir}/public.pem";
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defaultText = literalExpression ''"''${config.${opt.stateDir}}/public.pem"'';
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description = lib.mdDoc ''
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Public key for checking signatures of the audit log.
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'';
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};
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adminPasswordFile = mkOption {
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type = types.path;
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description = lib.mdDoc "File containing password for the admin user";
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};
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adminEmail = mkOption {
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type = types.str;
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example = "admin@example.com";
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description = lib.mdDoc "Mail address for the admin user";
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = lib.mdDoc ''
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Extra configuration options for pi.cfg.
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'';
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};
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user = mkOption {
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type = types.str;
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default = "privacyidea";
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description = lib.mdDoc "User account under which PrivacyIDEA runs.";
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};
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group = mkOption {
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type = types.str;
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default = "privacyidea";
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description = lib.mdDoc "Group account under which PrivacyIDEA runs.";
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};
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ldap-proxy = {
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enable = mkEnableOption "PrivacyIDEA LDAP Proxy";
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configFile = mkOption {
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type = types.nullOr types.path;
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default = null;
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description = lib.mdDoc ''
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Path to PrivacyIDEA LDAP Proxy configuration (proxy.ini).
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'';
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};
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user = mkOption {
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type = types.str;
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default = "pi-ldap-proxy";
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description = lib.mdDoc "User account under which PrivacyIDEA LDAP proxy runs.";
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};
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group = mkOption {
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type = types.str;
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default = "pi-ldap-proxy";
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description = lib.mdDoc "Group account under which PrivacyIDEA LDAP proxy runs.";
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};
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settings = mkOption {
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type = with types; attrsOf (attrsOf (oneOf [ str bool int (listOf str) ]));
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default = {};
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description = ''
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Attribute-set containing the settings for <package>privacyidea-ldap-proxy</package>.
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It's possible to pass secrets using env-vars as substitutes and
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use the option <xref linkend="opt-services.privacyidea.ldap-proxy.environmentFile"/>
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to inject them via <package>envsubst</package>.
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'';
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};
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environmentFile = mkOption {
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default = null;
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type = types.nullOr types.str;
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description = lib.mdDoc ''
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Environment file containing secrets to be substituted into
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[](#opt-services.privacyidea.ldap-proxy.settings).
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'';
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};
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};
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};
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};
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config = mkMerge [
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(mkIf cfg.enable {
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environment.systemPackages = [ pkgs.privacyidea ];
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services.postgresql.enable = mkDefault true;
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systemd.services.privacyidea = let
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piuwsgi = pkgs.writeText "uwsgi.json" (builtins.toJSON {
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uwsgi = {
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buffer-size = 8192;
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plugins = [ "python3" ];
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pythonpath = "${penv}/${uwsgi.python3.sitePackages}";
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socket = "/run/privacyidea/socket";
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uid = cfg.user;
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gid = cfg.group;
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chmod-socket = 770;
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chown-socket = "${cfg.user}:nginx";
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chdir = cfg.stateDir;
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wsgi-file = "${penv}/etc/privacyidea/privacyideaapp.wsgi";
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processes = 4;
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harakiri = 60;
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reload-mercy = 8;
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stats = "/run/privacyidea/stats.socket";
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max-requests = 2000;
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limit-as = 1024;
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reload-on-as = 512;
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reload-on-rss = 256;
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no-orphans = true;
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vacuum = true;
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};
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});
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in {
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wantedBy = [ "multi-user.target" ];
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after = [ "postgresql.service" ];
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path = with pkgs; [ openssl ];
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environment.PRIVACYIDEA_CONFIGFILE = "${cfg.stateDir}/privacyidea.cfg";
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preStart = let
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pi-manage = "${config.security.sudo.package}/bin/sudo -u privacyidea -HE ${penv}/bin/pi-manage";
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pgsu = config.services.postgresql.superUser;
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psql = config.services.postgresql.package;
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in ''
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mkdir -p ${cfg.stateDir} /run/privacyidea
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chown ${cfg.user}:${cfg.group} -R ${cfg.stateDir} /run/privacyidea
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umask 077
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${lib.getBin pkgs.envsubst}/bin/envsubst -o ${cfg.stateDir}/privacyidea.cfg \
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-i "${piCfgFile}"
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chown ${cfg.user}:${cfg.group} ${cfg.stateDir}/privacyidea.cfg
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if ! test -e "${cfg.stateDir}/db-created"; then
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${config.security.sudo.package}/bin/sudo -u ${pgsu} ${psql}/bin/createuser --no-superuser --no-createdb --no-createrole ${cfg.user}
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${config.security.sudo.package}/bin/sudo -u ${pgsu} ${psql}/bin/createdb --owner ${cfg.user} privacyidea
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${pi-manage} create_enckey
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${pi-manage} create_audit_keys
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${pi-manage} createdb
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${pi-manage} admin add admin -e ${cfg.adminEmail} -p "$(cat ${cfg.adminPasswordFile})"
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${pi-manage} db stamp head -d ${penv}/lib/privacyidea/migrations
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touch "${cfg.stateDir}/db-created"
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chmod g+r "${cfg.stateDir}/enckey" "${cfg.stateDir}/private.pem"
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fi
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${pi-manage} db upgrade -d ${penv}/lib/privacyidea/migrations
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'';
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serviceConfig = {
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Type = "notify";
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ExecStart = "${uwsgi}/bin/uwsgi --json ${piuwsgi}";
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
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EnvironmentFile = lib.mkIf (cfg.environmentFile != null) cfg.environmentFile;
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ExecStop = "${pkgs.coreutils}/bin/kill -INT $MAINPID";
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NotifyAccess = "main";
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KillSignal = "SIGQUIT";
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};
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};
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users.users.privacyidea = mkIf (cfg.user == "privacyidea") {
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group = cfg.group;
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isSystemUser = true;
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};
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users.groups.privacyidea = mkIf (cfg.group == "privacyidea") {};
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})
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(mkIf cfg.ldap-proxy.enable {
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assertions = [
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{ assertion = let
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xor = a: b: a && !b || !a && b;
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in xor (cfg.ldap-proxy.settings == {}) (cfg.ldap-proxy.configFile == null);
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message = "configFile & settings are mutually exclusive for services.privacyidea.ldap-proxy!";
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}
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];
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warnings = mkIf (cfg.ldap-proxy.configFile != null) [
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"Using services.privacyidea.ldap-proxy.configFile is deprecated! Use the RFC42-style settings option instead!"
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];
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systemd.services.privacyidea-ldap-proxy = let
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ldap-proxy-env = pkgs.python3.withPackages (ps: [ ps.privacyidea-ldap-proxy ]);
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in {
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description = "privacyIDEA LDAP proxy";
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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User = cfg.ldap-proxy.user;
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Group = cfg.ldap-proxy.group;
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StateDirectory = "privacyidea-ldap-proxy";
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EnvironmentFile = mkIf (cfg.ldap-proxy.environmentFile != null)
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[ cfg.ldap-proxy.environmentFile ];
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ExecStartPre =
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"${pkgs.writeShellScript "substitute-secrets-ldap-proxy" ''
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umask 0077
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${pkgs.envsubst}/bin/envsubst \
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-i ${ldapProxyConfig} \
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-o $STATE_DIRECTORY/ldap-proxy.ini
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''}";
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ExecStart = let
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configPath = if cfg.ldap-proxy.settings != {}
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then "%S/privacyidea-ldap-proxy/ldap-proxy.ini"
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else cfg.ldap-proxy.configFile;
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in ''
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${ldap-proxy-env}/bin/twistd \
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--nodaemon \
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--pidfile= \
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-u ${cfg.ldap-proxy.user} \
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-g ${cfg.ldap-proxy.group} \
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ldap-proxy \
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-c ${configPath}
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'';
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Restart = "always";
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};
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};
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users.users.pi-ldap-proxy = mkIf (cfg.ldap-proxy.user == "pi-ldap-proxy") {
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group = cfg.ldap-proxy.group;
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isSystemUser = true;
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};
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users.groups.pi-ldap-proxy = mkIf (cfg.ldap-proxy.group == "pi-ldap-proxy") {};
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})
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];
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}
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