pyrox.dev
1{ config, lib, pkgs, ... }:
2
3with lib;
4
5let
6
7 cfg = config.services.syslogd;
8
9 syslogConf = pkgs.writeText "syslog.conf" ''
10 ${if (cfg.tty != "") then "kern.warning;*.err;authpriv.none /dev/${cfg.tty}" else ""}
11 ${cfg.defaultConfig}
12 ${cfg.extraConfig}
13 '';
14
15 defaultConf = ''
16 # Send emergency messages to all users.
17 *.emerg *
18
19 # "local1" is used for dhcpd messages.
20 local1.* -/var/log/dhcpd
21
22 mail.* -/var/log/mail
23
24 *.=warning;*.=err -/var/log/warn
25 *.crit /var/log/warn
26
27 *.*;mail.none;local1.none -/var/log/messages
28 '';
29
30in
31
32{
33 ###### interface
34
35 options = {
36
37 services.syslogd = {
38
39 enable = mkOption {
40 type = types.bool;
41 default = false;
42 description = ''
43 Whether to enable syslogd. Note that systemd also logs
44 syslog messages, so you normally don't need to run syslogd.
45 '';
46 };
47
48 tty = mkOption {
49 type = types.str;
50 default = "tty10";
51 description = ''
52 The tty device on which syslogd will print important log
53 messages. Leave this option blank to disable tty logging.
54 '';
55 };
56
57 defaultConfig = mkOption {
58 type = types.lines;
59 default = defaultConf;
60 description = ''
61 The default <filename>syslog.conf</filename> file configures a
62 fairly standard setup of log files, which can be extended by
63 means of <varname>extraConfig</varname>.
64 '';
65 };
66
67 enableNetworkInput = mkOption {
68 type = types.bool;
69 default = false;
70 description = ''
71 Accept logging through UDP. Option -r of syslogd(8).
72 '';
73 };
74
75 extraConfig = mkOption {
76 type = types.lines;
77 default = "";
78 example = "news.* -/var/log/news";
79 description = ''
80 Additional text appended to <filename>syslog.conf</filename>,
81 i.e. the contents of <varname>defaultConfig</varname>.
82 '';
83 };
84
85 extraParams = mkOption {
86 type = types.listOf types.str;
87 default = [ ];
88 example = [ "-m 0" ];
89 description = ''
90 Additional parameters passed to <command>syslogd</command>.
91 '';
92 };
93
94 };
95
96 };
97
98
99 ###### implementation
100
101 config = mkIf cfg.enable {
102
103 environment.systemPackages = [ pkgs.sysklogd ];
104
105 services.syslogd.extraParams = optional cfg.enableNetworkInput "-r";
106
107 # FIXME: restarting syslog seems to break journal logging.
108 systemd.services.syslog =
109 { description = "Syslog Daemon";
110
111 requires = [ "syslog.socket" ];
112
113 wantedBy = [ "multi-user.target" ];
114
115 serviceConfig =
116 { ExecStart = "${pkgs.sysklogd}/sbin/syslogd ${toString cfg.extraParams} -f ${syslogConf} -n";
117 # Prevent syslogd output looping back through journald.
118 StandardOutput = "null";
119 };
120 };
121
122 };
123
124}