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ae4e94d9ac
Suggested by Mathijs Kwik. ‘boot.systemd’ is a misnomer because systemd affects more than just booting. And it saves some typing.
97 lines
2.6 KiB
Nix
97 lines
2.6 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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cfg = config.services.smartd;
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smartdMail = pkgs.writeScript "smartdmail.sh" ''
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#! ${pkgs.stdenv.shell}
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TMPNAM=/tmp/smartd-message.$$.tmp
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if test -n "$SMARTD_ADDRESS"; then
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echo >"$TMPNAM" "From: smartd <root>"
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echo >>"$TMPNAM" 'To: undisclosed-recipients:;'
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echo >>"$TMPNAM" "Subject: $SMARTD_SUBJECT"
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echo >>"$TMPNAM"
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echo >>"$TMPNAM" "Failure on $SMARTD_DEVICESTRING: $SMARTD_FAILTYPE"
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echo >>"$TMPNAM"
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cat >>"$TMPNAM"
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${pkgs.smartmontools}/sbin/smartctl >>"$TMPNAM" -a -d "$SMARTD_DEVICETYPE" "$SMARTD_DEVICE"
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/var/setuid-wrappers/sendmail <"$TMPNAM" -f "$SENDER" -i "$SMARTD_ADDRESS"
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fi
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'';
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smartdConf = pkgs.writeText "smartd.conf" (concatMapStrings (device:
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''
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${device} -a -m root -M exec ${smartdMail} ${cfg.deviceOpts}
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''
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) cfg.devices);
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smartdFlags = if (cfg.devices == []) then "" else "--configfile=${smartdConf}";
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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 = mkOption {
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default = false;
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type = types.bool;
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example = "true";
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description = ''
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Run smartd from the smartmontools package. Note that e-mail
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notifications will not be enabled unless you configure the list of
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devices with <varname>services.smartd.devices</varname> as well.
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'';
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};
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deviceOpts = mkOption {
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default = "";
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type = types.string;
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example = "-o on -s (S/../.././02|L/../../7/04)";
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description = ''
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Additional options for each device that is monitored. The example
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turns on SMART Automatic Offline Testing on startup, and schedules short
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self-tests daily, and long self-tests weekly.
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'';
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};
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devices = mkOption {
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default = [];
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example = ["/dev/sda" "/dev/sdb"];
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description = ''
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List of devices to monitor. By default -- if this list is empty --,
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smartd will monitor all devices connected to the machine at the time
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it's being run. Configuring this option has the added benefit of
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enabling e-mail notifications to "root" every time smartd detects an
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error.
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'';
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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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systemd.services.smartd = {
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description = "S.M.A.R.T. Daemon";
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environment.TZ = config.time.timeZone;
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wantedBy = [ "multi-user.target" ];
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serviceConfig.ExecStart = "${pkgs.smartmontools}/sbin/smartd --no-fork ${smartdFlags}";
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};
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};
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}
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