forked from mirrors/nixpkgs
e01bb0c0d0
This reverts commit 41306ca505
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231 lines
6.1 KiB
Nix
231 lines
6.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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host = config.networking.hostName or "unknown"
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+ optionalString (config.networking.domain != null) ".${config.networking.domain}";
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cfg = config.services.smartd;
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nm = cfg.notifications.mail;
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nw = cfg.notifications.wall;
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nx = cfg.notifications.x11;
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smartdNotify = pkgs.writeScript "smartd-notify.sh" ''
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#! ${pkgs.stdenv.shell}
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${optionalString nm.enable ''
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{
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cat << EOF
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From: smartd on ${host} <root>
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To: undisclosed-recipients:;
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Subject: SMART error on $SMARTD_DEVICESTRING: $SMARTD_FAILTYPE
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$SMARTD_FULLMESSAGE
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EOF
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${pkgs.smartmontools}/sbin/smartctl -a -d "$SMARTD_DEVICETYPE" "$SMARTD_DEVICE"
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} | ${nm.mailer} -i "${nm.recipient}"
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''}
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${optionalString nw.enable ''
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{
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cat << EOF
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Problem detected with disk: $SMARTD_DEVICESTRING
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Warning message from smartd is:
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$SMARTD_MESSAGE
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EOF
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} | ${pkgs.utillinux}/bin/wall 2>/dev/null
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''}
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${optionalString nx.enable ''
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export DISPLAY=${nx.display}
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{
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cat << EOF
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Problem detected with disk: $SMARTD_DEVICESTRING
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Warning message from smartd is:
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$SMARTD_FULLMESSAGE
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EOF
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} | ${pkgs.xorg.xmessage}/bin/xmessage -file - 2>/dev/null &
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''}
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'';
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notifyOpts = optionalString (nm.enable || nw.enable || nx.enable)
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("-m <nomailer> -M exec ${smartdNotify} " + optionalString cfg.notifications.test "-M test ");
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smartdConf = pkgs.writeText "smartd.conf" ''
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# Autogenerated smartd startup config file
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DEFAULT ${notifyOpts}${cfg.defaults.monitored}
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${concatMapStringsSep "\n" (d: "${d.device} ${d.options}") cfg.devices}
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${optionalString cfg.autodetect
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"DEVICESCAN ${notifyOpts}${cfg.defaults.autodetected}"}
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'';
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smartdOpts = { name, ... }: {
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options = {
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device = mkOption {
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example = "/dev/sda";
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type = types.str;
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description = "Location of the device.";
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};
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options = mkOption {
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default = "";
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example = "-d sat";
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type = types.separatedString " ";
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description = "Options that determine how smartd monitors the device.";
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};
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};
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};
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in
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{
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###### interface
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options = {
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services.smartd = {
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enable = mkEnableOption "smartd daemon from <literal>smartmontools</literal> package";
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autodetect = mkOption {
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default = true;
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type = types.bool;
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description = ''
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Whenever smartd should monitor all devices connected to the
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machine at the time it's being started (the default).
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Set to false to monitor the devices listed in
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<option>services.smartd.devices</option> only.
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'';
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};
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notifications = {
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mail = {
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enable = mkOption {
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default = config.services.mail.sendmailSetuidWrapper != null;
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type = types.bool;
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description = "Whenever to send e-mail notifications.";
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};
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recipient = mkOption {
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default = "root";
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type = types.str;
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description = "Recipient of the notification messages.";
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};
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mailer = mkOption {
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default = "/run/wrappers/bin/sendmail";
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type = types.path;
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description = ''
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Sendmail-compatible binary to be used to send the messages.
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You should probably enable
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<option>services.postfix</option> or some other MTA for
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this to work.
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'';
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};
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};
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wall = {
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enable = mkOption {
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default = true;
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type = types.bool;
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description = "Whenever to send wall notifications to all users.";
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};
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};
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x11 = {
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enable = mkOption {
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default = config.services.xserver.enable;
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type = types.bool;
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description = "Whenever to send X11 xmessage notifications.";
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};
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display = mkOption {
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default = ":${toString config.services.xserver.display}";
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type = types.str;
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description = "DISPLAY to send X11 notifications to.";
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};
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};
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test = mkOption {
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default = false;
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type = types.bool;
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description = "Whenever to send a test notification on startup.";
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};
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};
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defaults = {
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monitored = mkOption {
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default = "-a";
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type = types.separatedString " ";
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example = "-a -o on -s (S/../.././02|L/../../7/04)";
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description = ''
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Common default options for explicitly monitored (listed in
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<option>services.smartd.devices</option>) devices.
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The default value turns on monitoring of all the things (see
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<literal>man 5 smartd.conf</literal>).
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The example also turns on SMART Automatic Offline Testing on
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startup, and schedules short self-tests daily, and long
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self-tests weekly.
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'';
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};
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autodetected = mkOption {
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default = cfg.defaults.monitored;
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type = types.separatedString " ";
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description = ''
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Like <option>services.smartd.defaults.monitored</option>, but for the
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autodetected devices.
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'';
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};
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};
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devices = mkOption {
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default = [];
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example = [ { device = "/dev/sda"; } { device = "/dev/sdb"; options = "-d sat"; } ];
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type = with types; listOf (submodule smartdOpts);
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description = "List of devices to monitor.";
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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assertions = [ {
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assertion = cfg.autodetect || cfg.devices != [];
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message = "smartd can't run with both disabled autodetect and an empty list of devices to monitor.";
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} ];
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systemd.services.smartd = {
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description = "S.M.A.R.T. Daemon";
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wantedBy = [ "multi-user.target" ];
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path = [ pkgs.nettools ]; # for hostname and dnsdomanname calls in smartd
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serviceConfig.ExecStart = "${pkgs.smartmontools}/sbin/smartd --no-fork --configfile=${smartdConf}";
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};
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};
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}
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