68 lines
1.6 KiB
Nix
68 lines
1.6 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.systemd.emailNotify;
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sendmail = pkgs.writeScript "sendmail" ''
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#!${pkgs.runtimeShell}
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${pkgs.system-sendmail}/bin/sendmail -t <<ERRMAIL
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To: ${cfg.mailTo}
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From: ${cfg.mailFrom}
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Subject: Status of service $1
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Content-Transfer-Encoding: 8bit
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Content-Type: text/plain; charset=UTF-8
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$(systemctl status --full "$1")
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ERRMAIL
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'';
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in {
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options = {
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systemd.emailNotify = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description =
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"Whether to enable email notification for failed services.";
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};
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mailTo = mkOption {
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type = types.str;
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default = null;
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description =
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"Email address to which the service status will be mailed.";
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};
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mailFrom = mkOption {
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type = types.str;
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default = null;
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description =
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"Email address from which the service status will be mailed.";
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};
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};
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systemd.services = mkOption {
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type = with types;
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attrsOf (submodule {
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config.onFailure = optional cfg.enable "email@%n.service";
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});
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};
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};
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config = mkIf cfg.enable {
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assertions = singleton {
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assertion = cfg.mailTo != null && cfg.mailFrom != null;
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message = "You need to specify a sender and a receiver";
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};
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systemd.services."email@" = {
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description = "Sends a status mail via sendmail on service failures.";
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onFailure = lib.mkForce [ ];
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serviceConfig = {
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ExecStart = "${sendmail} %i";
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Type = "oneshot";
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};
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};
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};
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}
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