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e91d882a94
style of declaring Upstart jobs. While at it, converted them to the current NixOS module style and improved some option descriptions. Hopefully I didn't break too much :-) svn path=/nixos/trunk/; revision=17761
95 lines
2.3 KiB
Nix
95 lines
2.3 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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inherit (config.services) jobsTags;
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# Put all the system cronjobs together.
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systemCronJobsFile = pkgs.writeText "system-crontab"
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''
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SHELL=${pkgs.bash}/bin/sh
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PATH=${pkgs.coreutils}/bin:${pkgs.findutils}/bin:${pkgs.gnused}/bin:${pkgs.su}/bin
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MAILTO="${config.services.cron.mailto}"
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${pkgs.lib.concatStrings (map (job: job + "\n") config.services.cron.systemCronJobs)}
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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.cron = {
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mailto = mkOption {
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default = "";
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description = " The job output will be mailed to this email address. ";
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};
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systemCronJobs = mkOption {
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default = [];
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example = [
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"* * * * * test ls -l / > /tmp/cronout 2>&1"
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"* * * * * eelco echo Hello World > /home/eelco/cronout"
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];
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description = ''
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A list of Cron jobs to be appended to the system-wide
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crontab. See the manual page for crontab for the expected
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format. If you want to get the results mailed you must setuid
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sendmail. See <option>security.setuidOwners</option>
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If neither /var/cron/cron.deny nor /var/cron/cron.allow exist only root
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will is allowed to have its own crontab file. The /var/cron/cron.deny file
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is created automatically for you. So every user can use a crontab.
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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 = {
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environment.etc = singleton
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# The system-wide crontab.
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{ source = systemCronJobsFile;
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target = "crontab";
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mode = "0600"; # Cron requires this.
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};
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environment.systemPackages = [pkgs.cron];
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jobAttrs.cron =
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{ description = "Cron daemon";
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startOn = "startup";
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stopOn = "shutdown";
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# Needed to interpret times in the local timezone.
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environment = { TZ = config.time.timeZone; };
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preStart =
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''
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mkdir -m 710 -p /var/cron
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# By default, allow all users to create a crontab. This
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# is denoted by the existence of an empty cron.deny file.
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if ! test -e /var/cron/cron.allow -o -e /var/cron/cron.deny; then
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touch /var/cron/cron.deny
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fi
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'';
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exec = "${pkgs.cron}/sbin/cron -n";
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};
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};
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}
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