35 lines
1.1 KiB
Nix
35 lines
1.1 KiB
Nix
{pkgs, ...}: let
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shutdownWaitMinutes = 10;
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shutdownScript = pkgs.writeShellScriptBin "shutdown-wait" ''
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ssh_login_active="$(${pkgs.procps}/bin/ps aux | ${pkgs.gnugrep}/bin/grep "sshd: yule" | ${pkgs.gnugrep}/bin/grep -v grep | ${pkgs.coreutils-full}/bin/wc -l)"
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if [ -n "''${ssh_login_active}" ] && [ "''${ssh_login_active}" != "0" ]; then
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echo "There is still an active ssh connection"
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exit 0
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fi
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echo "WARNING: System will be shut down within the next ${builtins.toString shutdownWaitMinutes} minutes" | ${pkgs.util-linux}/bin/wall
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sleep 10
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shutdown -P +${builtins.toString shutdownWaitMinutes}
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'';
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in {
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systemd.services."shutdown-after-backup" = {
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enable = true;
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serviceConfig = {
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ExecStart = "${shutdownScript}/bin/shutdown-wait";
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Type = "oneshot";
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};
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};
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systemd.timers."shutdown-after-backup" = {
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enable = true;
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timerConfig = {
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OnCalendar = "*-*-* 02..11:05,15,25,35,45,55:00 Etc/UTC";
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};
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wantedBy = ["timers.target"];
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partOf = ["shutdown-after-backup.service"];
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};
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}
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