diff options
Diffstat (limited to 'nixos/modules/services/logging/syslogd.nix')
-rw-r--r-- | nixos/modules/services/logging/syslogd.nix | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/nixos/modules/services/logging/syslogd.nix b/nixos/modules/services/logging/syslogd.nix new file mode 100644 index 000000000000..36a0ace927ae --- /dev/null +++ b/nixos/modules/services/logging/syslogd.nix @@ -0,0 +1,124 @@ +{ config, pkgs, ... }: + +with pkgs.lib; + +let + + cfg = config.services.syslogd; + + syslogConf = pkgs.writeText "syslog.conf" '' + ${if (cfg.tty != "") then "kern.warning;*.err;authpriv.none /dev/${cfg.tty}" else ""} + ${cfg.defaultConfig} + ${cfg.extraConfig} + ''; + + defaultConf = '' + # Send emergency messages to all users. + *.emerg * + + # "local1" is used for dhcpd messages. + local1.* -/var/log/dhcpd + + mail.* -/var/log/mail + + *.=warning;*.=err -/var/log/warn + *.crit /var/log/warn + + *.*;mail.none;local1.none -/var/log/messages + ''; + +in + +{ + ###### interface + + options = { + + services.syslogd = { + + enable = mkOption { + type = types.bool; + default = false; + description = '' + Whether to enable syslogd. Note that systemd also logs + syslog messages, so you normally don't need to run syslogd. + ''; + }; + + tty = mkOption { + type = types.str; + default = "tty10"; + description = '' + The tty device on which syslogd will print important log + messages. Leave this option blank to disable tty logging. + ''; + }; + + defaultConfig = mkOption { + type = types.lines; + default = defaultConf; + description = '' + The default <filename>syslog.conf</filename> file configures a + fairly standard setup of log files, which can be extended by + means of <varname>extraConfig</varname>. + ''; + }; + + enableNetworkInput = mkOption { + type = types.bool; + default = false; + description = '' + Accept logging through UDP. Option -r of syslogd(8). + ''; + }; + + extraConfig = mkOption { + type = types.lines; + default = ""; + example = "news.* -/var/log/news"; + description = '' + Additional text appended to <filename>syslog.conf</filename>, + i.e. the contents of <varname>defaultConfig</varname>. + ''; + }; + + extraParams = mkOption { + type = types.listOf types.string; + default = [ ]; + example = [ "-m 0" ]; + description = '' + Additional parameters passed to <command>syslogd</command>. + ''; + }; + + }; + + }; + + + ###### implementation + + config = mkIf cfg.enable { + + environment.systemPackages = [ pkgs.sysklogd ]; + + services.syslogd.extraParams = optional cfg.enableNetworkInput "-r"; + + # FIXME: restarting syslog seems to break journal logging. + systemd.services.syslog = + { description = "Syslog Daemon"; + + requires = [ "syslog.socket" ]; + + wantedBy = [ "multi-user.target" ]; + + serviceConfig = + { ExecStart = "${pkgs.sysklogd}/sbin/syslogd ${toString cfg.extraParams} -f ${syslogConf} -n"; + # Prevent syslogd output looping back through journald. + StandardOutput = "null"; + }; + }; + + }; + +} |