6bd4e0b8cd
This shuts up this error from dbus:
May 11 13:52:16 machine dbus-daemon[259]: Unknown username "systemd-network" in message bus configuration file
May 11 13:52:16 machine dbus-daemon[259]: Unknown username "systemd-resolve" in message bus configuration file
which happens because the D-Bus config for networkd/resolved is
enabled unconditionally, and we don't have an easy way to turn it off.
(cherry picked from commit f19b58fb6a)
763 lines
24 KiB
Nix
763 lines
24 KiB
Nix
{ config, lib, pkgs, utils, ... }:
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with utils;
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with lib;
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with import ./systemd-unit-options.nix { inherit config lib; };
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with import ./systemd-lib.nix { inherit config lib pkgs; };
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let
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cfg = config.systemd;
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systemd = cfg.package;
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upstreamSystemUnits =
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[ # Targets.
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"basic.target"
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"sysinit.target"
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"sockets.target"
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"graphical.target"
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"multi-user.target"
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"network.target"
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"network-pre.target"
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"network-online.target"
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"nss-lookup.target"
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"nss-user-lookup.target"
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"time-sync.target"
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#"cryptsetup.target"
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"sigpwr.target"
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"timers.target"
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"paths.target"
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"rpcbind.target"
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# Rescue mode.
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"rescue.target"
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"rescue.service"
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# Udev.
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"systemd-udevd-control.socket"
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"systemd-udevd-kernel.socket"
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"systemd-udevd.service"
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"systemd-udev-settle.service"
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"systemd-udev-trigger.service"
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# Consoles.
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"getty.target"
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"getty@.service"
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"serial-getty@.service"
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"container-getty@.service"
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"systemd-vconsole-setup.service"
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# Hardware (started by udev when a relevant device is plugged in).
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"sound.target"
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"bluetooth.target"
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"printer.target"
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"smartcard.target"
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# Login stuff.
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"systemd-logind.service"
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"autovt@.service"
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#"systemd-vconsole-setup.service"
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"systemd-user-sessions.service"
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"dbus-org.freedesktop.login1.service"
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"dbus-org.freedesktop.machine1.service"
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"user@.service"
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# Journal.
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"systemd-journald.socket"
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"systemd-journald.service"
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"systemd-journal-flush.service"
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"systemd-journal-gatewayd.socket"
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"systemd-journal-gatewayd.service"
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"systemd-journald-dev-log.socket"
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"syslog.socket"
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# SysV init compatibility.
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"systemd-initctl.socket"
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"systemd-initctl.service"
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# Kernel module loading.
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"systemd-modules-load.service"
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"kmod-static-nodes.service"
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# Filesystems.
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"systemd-fsck@.service"
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"systemd-fsck-root.service"
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"systemd-remount-fs.service"
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"local-fs.target"
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"local-fs-pre.target"
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"remote-fs.target"
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"remote-fs-pre.target"
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"swap.target"
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"dev-hugepages.mount"
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"dev-mqueue.mount"
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"proc-sys-fs-binfmt_misc.mount"
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"sys-fs-fuse-connections.mount"
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"sys-kernel-config.mount"
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"sys-kernel-debug.mount"
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# Maintaining state across reboots.
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"systemd-random-seed.service"
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"systemd-backlight@.service"
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"systemd-rfkill@.service"
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# Hibernate / suspend.
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"hibernate.target"
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"suspend.target"
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"sleep.target"
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"hybrid-sleep.target"
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"systemd-hibernate.service"
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"systemd-suspend.service"
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"systemd-hybrid-sleep.service"
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"systemd-shutdownd.socket"
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"systemd-shutdownd.service"
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# Reboot stuff.
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"reboot.target"
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"systemd-reboot.service"
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"poweroff.target"
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"systemd-poweroff.service"
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"halt.target"
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"systemd-halt.service"
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"ctrl-alt-del.target"
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"shutdown.target"
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"umount.target"
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"final.target"
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"kexec.target"
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"systemd-kexec.service"
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"systemd-update-utmp.service"
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# Password entry.
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"systemd-ask-password-console.path"
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"systemd-ask-password-console.service"
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"systemd-ask-password-wall.path"
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"systemd-ask-password-wall.service"
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# Slices / containers.
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"slices.target"
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"-.slice"
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"system.slice"
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"user.slice"
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"machine.slice"
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"systemd-machined.service"
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# Temporary file creation / cleanup.
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"systemd-tmpfiles-clean.service"
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"systemd-tmpfiles-clean.timer"
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"systemd-tmpfiles-setup.service"
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"systemd-tmpfiles-setup-dev.service"
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# Misc.
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"systemd-sysctl.service"
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]
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++ cfg.additionalUpstreamSystemUnits;
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upstreamSystemWants =
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[ #"basic.target.wants"
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"sysinit.target.wants"
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"sockets.target.wants"
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"local-fs.target.wants"
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"multi-user.target.wants"
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"timers.target.wants"
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];
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upstreamUserUnits =
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[ "basic.target"
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"default.target"
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"exit.target"
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"paths.target"
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"shutdown.target"
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"sockets.target"
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"systemd-exit.service"
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"timers.target"
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];
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makeJobScript = name: text:
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let x = pkgs.writeTextFile { name = "unit-script"; executable = true; destination = "/bin/${shellEscape name}"; inherit text; };
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in "${x}/bin/${shellEscape name}";
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unitConfig = { name, config, ... }: {
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config = {
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unitConfig =
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optionalAttrs (config.requires != [])
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{ Requires = toString config.requires; }
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// optionalAttrs (config.wants != [])
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{ Wants = toString config.wants; }
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// optionalAttrs (config.after != [])
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{ After = toString config.after; }
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// optionalAttrs (config.before != [])
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{ Before = toString config.before; }
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// optionalAttrs (config.bindsTo != [])
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{ BindsTo = toString config.bindsTo; }
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// optionalAttrs (config.partOf != [])
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{ PartOf = toString config.partOf; }
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// optionalAttrs (config.conflicts != [])
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{ Conflicts = toString config.conflicts; }
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// optionalAttrs (config.requisite != [])
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{ Requisite = toString config.requisite; }
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// optionalAttrs (config.restartTriggers != [])
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{ X-Restart-Triggers = toString config.restartTriggers; }
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// optionalAttrs (config.description != "") {
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Description = config.description;
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};
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};
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};
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serviceConfig = { name, config, ... }: {
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config = mkMerge
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[ { # Default path for systemd services. Should be quite minimal.
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path =
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[ pkgs.coreutils
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pkgs.findutils
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pkgs.gnugrep
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pkgs.gnused
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systemd
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];
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environment.PATH = config.path;
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}
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(mkIf (config.preStart != "")
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{ serviceConfig.ExecStartPre = makeJobScript "${name}-pre-start" ''
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#! ${pkgs.stdenv.shell} -e
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${config.preStart}
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'';
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})
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(mkIf (config.script != "")
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{ serviceConfig.ExecStart = makeJobScript "${name}-start" ''
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#! ${pkgs.stdenv.shell} -e
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${config.script}
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'' + " " + config.scriptArgs;
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})
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(mkIf (config.postStart != "")
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{ serviceConfig.ExecStartPost = makeJobScript "${name}-post-start" ''
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#! ${pkgs.stdenv.shell} -e
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${config.postStart}
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'';
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})
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(mkIf (config.reload != "")
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{ serviceConfig.ExecReload = makeJobScript "${name}-reload" ''
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#! ${pkgs.stdenv.shell} -e
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${config.reload}
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'';
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})
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(mkIf (config.preStop != "")
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{ serviceConfig.ExecStop = makeJobScript "${name}-pre-stop" ''
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#! ${pkgs.stdenv.shell} -e
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${config.preStop}
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'';
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})
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(mkIf (config.postStop != "")
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{ serviceConfig.ExecStopPost = makeJobScript "${name}-post-stop" ''
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#! ${pkgs.stdenv.shell} -e
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${config.postStop}
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'';
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})
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];
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};
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mountConfig = { name, config, ... }: {
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config = {
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mountConfig =
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{ What = config.what;
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Where = config.where;
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} // optionalAttrs (config.type != "") {
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Type = config.type;
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} // optionalAttrs (config.options != "") {
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Options = config.options;
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};
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};
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};
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automountConfig = { name, config, ... }: {
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config = {
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automountConfig =
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{ Where = config.where;
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};
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};
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};
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commonUnitText = def: ''
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[Unit]
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${attrsToSection def.unitConfig}
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'';
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targetToUnit = name: def:
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{ inherit (def) wantedBy requiredBy enable;
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text =
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''
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[Unit]
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${attrsToSection def.unitConfig}
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'';
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};
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serviceToUnit = name: def:
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{ inherit (def) wantedBy requiredBy enable;
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text = commonUnitText def +
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''
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[Service]
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${let env = cfg.globalEnvironment // def.environment;
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in concatMapStrings (n:
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let s = optionalString (env."${n}" != null)
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"Environment=\"${n}=${env.${n}}\"\n";
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in if stringLength s >= 2048 then throw "The value of the environment variable ‘${n}’ in systemd service ‘${name}.service’ is too long." else s) (attrNames env)}
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${if def.reloadIfChanged then ''
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X-ReloadIfChanged=true
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'' else if !def.restartIfChanged then ''
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X-RestartIfChanged=false
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'' else ""}
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${optionalString (!def.stopIfChanged) "X-StopIfChanged=false"}
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${attrsToSection def.serviceConfig}
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'';
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};
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socketToUnit = name: def:
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{ inherit (def) wantedBy requiredBy enable;
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text = commonUnitText def +
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''
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[Socket]
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${attrsToSection def.socketConfig}
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${concatStringsSep "\n" (map (s: "ListenStream=${s}") def.listenStreams)}
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'';
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};
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timerToUnit = name: def:
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{ inherit (def) wantedBy requiredBy enable;
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text = commonUnitText def +
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''
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[Timer]
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${attrsToSection def.timerConfig}
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'';
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};
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pathToUnit = name: def:
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{ inherit (def) wantedBy requiredBy enable;
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text = commonUnitText def +
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''
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[Path]
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${attrsToSection def.pathConfig}
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'';
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};
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mountToUnit = name: def:
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{ inherit (def) wantedBy requiredBy enable;
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text = commonUnitText def +
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''
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[Mount]
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${attrsToSection def.mountConfig}
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'';
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};
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automountToUnit = name: def:
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{ inherit (def) wantedBy requiredBy enable;
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text = commonUnitText def +
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''
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[Automount]
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${attrsToSection def.automountConfig}
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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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systemd.package = mkOption {
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default = pkgs.systemd;
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type = types.package;
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description = "The systemd package.";
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};
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systemd.units = mkOption {
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description = "Definition of systemd units.";
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default = {};
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type = types.attrsOf types.optionSet;
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options = { name, config, ... }:
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{ options = concreteUnitOptions;
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config = {
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unit = mkDefault (makeUnit name config);
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};
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};
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};
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systemd.packages = mkOption {
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default = [];
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type = types.listOf types.package;
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description = "Packages providing systemd units.";
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};
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systemd.targets = mkOption {
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default = {};
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type = types.attrsOf types.optionSet;
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options = [ targetOptions unitConfig ];
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description = "Definition of systemd target units.";
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};
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systemd.services = mkOption {
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default = {};
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type = types.attrsOf types.optionSet;
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options = [ serviceOptions unitConfig serviceConfig ];
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description = "Definition of systemd service units.";
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};
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systemd.sockets = mkOption {
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default = {};
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type = types.attrsOf types.optionSet;
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options = [ socketOptions unitConfig ];
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description = "Definition of systemd socket units.";
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};
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systemd.timers = mkOption {
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default = {};
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type = types.attrsOf types.optionSet;
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options = [ timerOptions unitConfig ];
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description = "Definition of systemd timer units.";
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};
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systemd.paths = mkOption {
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default = {};
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type = types.attrsOf types.optionSet;
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options = [ pathOptions unitConfig ];
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description = "Definition of systemd path units.";
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};
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systemd.mounts = mkOption {
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default = [];
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type = types.listOf types.optionSet;
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options = [ mountOptions unitConfig mountConfig ];
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description = ''
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Definition of systemd mount units.
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This is a list instead of an attrSet, because systemd mandates the names to be derived from
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the 'where' attribute.
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'';
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};
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systemd.automounts = mkOption {
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default = [];
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type = types.listOf types.optionSet;
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options = [ automountOptions unitConfig automountConfig ];
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description = ''
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Definition of systemd automount units.
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This is a list instead of an attrSet, because systemd mandates the names to be derived from
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the 'where' attribute.
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'';
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};
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systemd.defaultUnit = mkOption {
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default = "multi-user.target";
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type = types.str;
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description = "Default unit started when the system boots.";
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};
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systemd.globalEnvironment = mkOption {
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type = types.attrs;
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default = {};
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example = { TZ = "CET"; };
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description = ''
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Environment variables passed to <emphasis>all</emphasis> systemd units.
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'';
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};
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systemd.extraConfig = mkOption {
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default = "";
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type = types.lines;
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example = "DefaultLimitCORE=infinity";
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description = ''
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Extra config options for systemd. See man systemd-system.conf for
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available options.
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'';
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};
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services.journald.console = mkOption {
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default = "";
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type = types.str;
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description = "If non-empty, write log messages to the specified TTY device.";
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};
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services.journald.rateLimitInterval = mkOption {
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default = "10s";
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type = types.str;
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description = ''
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Configures the rate limiting interval that is applied to all
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messages generated on the system. This rate limiting is applied
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per-service, so that two services which log do not interfere with
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each other's limit. The value may be specified in the following
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units: s, min, h, ms, us. To turn off any kind of rate limiting,
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set either value to 0.
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'';
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};
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services.journald.rateLimitBurst = mkOption {
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default = 100;
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type = types.int;
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description = ''
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Configures the rate limiting burst limit (number of messages per
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interval) that is applied to all messages generated on the system.
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This rate limiting is applied per-service, so that two services
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which log do not interfere with each other's limit.
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'';
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};
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services.journald.extraConfig = mkOption {
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default = "";
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type = types.lines;
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example = "Storage=volatile";
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description = ''
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Extra config options for systemd-journald. See man journald.conf
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for available options.
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'';
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};
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services.journald.enableHttpGateway = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether to enable the HTTP gateway to the journal.
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'';
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};
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services.logind.extraConfig = mkOption {
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default = "";
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type = types.lines;
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example = "HandleLidSwitch=ignore";
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description = ''
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Extra config options for systemd-logind. See man logind.conf for
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available options.
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'';
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};
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systemd.tmpfiles.rules = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [ "d /tmp 1777 root root 10d" ];
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description = ''
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Rules for creating and cleaning up temporary files
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automatically. See
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<citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for the exact format. You should not use this option to create
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files required by systemd services, since there is no
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guarantee that <command>systemd-tmpfiles</command> runs when
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the system is reconfigured using
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<command>nixos-rebuild</command>.
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'';
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};
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systemd.user.units = mkOption {
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description = "Definition of systemd per-user units.";
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default = {};
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type = types.attrsOf types.optionSet;
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options = { name, config, ... }:
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{ options = concreteUnitOptions;
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config = {
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unit = mkDefault (makeUnit name config);
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};
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};
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||
};
|
||
|
||
systemd.user.services = mkOption {
|
||
default = {};
|
||
type = types.attrsOf types.optionSet;
|
||
options = [ serviceOptions unitConfig serviceConfig ];
|
||
description = "Definition of systemd per-user service units.";
|
||
};
|
||
|
||
systemd.user.timers = mkOption {
|
||
default = {};
|
||
type = types.attrsOf types.optionSet;
|
||
options = [ timerOptions unitConfig ];
|
||
description = "Definition of systemd per-user timer units.";
|
||
};
|
||
|
||
systemd.user.sockets = mkOption {
|
||
default = {};
|
||
type = types.attrsOf types.optionSet;
|
||
options = [ socketOptions unitConfig ];
|
||
description = "Definition of systemd per-user socket units.";
|
||
};
|
||
|
||
systemd.additionalUpstreamSystemUnits = mkOption {
|
||
default = [ ];
|
||
type = types.listOf types.str;
|
||
example = [ "debug-shell.service" "systemd-quotacheck.service" ];
|
||
description = ''
|
||
Additional units shipped with systemd that shall be enabled.
|
||
'';
|
||
};
|
||
|
||
};
|
||
|
||
|
||
###### implementation
|
||
|
||
config = {
|
||
|
||
warnings = concatLists (mapAttrsToList (name: service:
|
||
optional (service.serviceConfig.Type or "" == "oneshot" && service.serviceConfig.Restart or "no" != "no")
|
||
"Service ‘${name}.service’ with ‘Type=oneshot’ must have ‘Restart=no’") cfg.services);
|
||
|
||
system.build.units = cfg.units;
|
||
|
||
environment.systemPackages = [ systemd ];
|
||
|
||
environment.etc."systemd/system".source =
|
||
generateUnits "system" cfg.units upstreamSystemUnits upstreamSystemWants;
|
||
|
||
environment.etc."systemd/user".source =
|
||
generateUnits "user" cfg.user.units upstreamUserUnits [];
|
||
|
||
environment.etc."systemd/system.conf".text =
|
||
''
|
||
[Manager]
|
||
${config.systemd.extraConfig}
|
||
'';
|
||
|
||
environment.etc."systemd/journald.conf".text =
|
||
''
|
||
[Journal]
|
||
RateLimitInterval=${config.services.journald.rateLimitInterval}
|
||
RateLimitBurst=${toString config.services.journald.rateLimitBurst}
|
||
${optionalString (config.services.journald.console != "") ''
|
||
ForwardToConsole=yes
|
||
TTYPath=${config.services.journald.console}
|
||
''}
|
||
${config.services.journald.extraConfig}
|
||
'';
|
||
|
||
environment.etc."systemd/logind.conf".text =
|
||
''
|
||
[Login]
|
||
${config.services.logind.extraConfig}
|
||
'';
|
||
|
||
environment.etc."systemd/sleep.conf".text =
|
||
''
|
||
[Sleep]
|
||
'';
|
||
|
||
system.activationScripts.systemd = stringAfter [ "groups" ]
|
||
''
|
||
mkdir -m 0755 -p /var/lib/udev
|
||
mkdir -p /var/log/journal
|
||
chmod 0755 /var/log/journal
|
||
|
||
# Make all journals readable to users in the wheel and adm
|
||
# groups, in addition to those in the systemd-journal group.
|
||
# Users can always read their own journals.
|
||
${pkgs.acl}/bin/setfacl -nm g:wheel:rx,d:g:wheel:rx,g:adm:rx,d:g:adm:rx /var/log/journal || true
|
||
'';
|
||
|
||
users.extraUsers.systemd-network.uid = config.ids.uids.systemd-network;
|
||
users.extraGroups.systemd-network.gid = config.ids.gids.systemd-network;
|
||
users.extraUsers.systemd-resolve.uid = config.ids.uids.systemd-resolve;
|
||
users.extraGroups.systemd-resolve.gid = config.ids.gids.systemd-resolve;
|
||
|
||
# Target for ‘charon send-keys’ to hook into.
|
||
users.extraGroups.keys.gid = config.ids.gids.keys;
|
||
|
||
systemd.targets.keys =
|
||
{ description = "Security Keys";
|
||
unitConfig.X-StopOnReconfiguration = true;
|
||
};
|
||
|
||
systemd.targets.network-online.after = [ "ip-up.target" ];
|
||
|
||
systemd.targets.network-pre = {
|
||
wantedBy = [ "network.target" ];
|
||
before = [ "network.target" ];
|
||
};
|
||
|
||
systemd.targets.remote-fs-pre = {
|
||
wantedBy = [ "remote-fs.target" ];
|
||
before = [ "remote-fs.target" ];
|
||
};
|
||
|
||
systemd.units =
|
||
mapAttrs' (n: v: nameValuePair "${n}.target" (targetToUnit n v)) cfg.targets
|
||
// mapAttrs' (n: v: nameValuePair "${n}.service" (serviceToUnit n v)) cfg.services
|
||
// mapAttrs' (n: v: nameValuePair "${n}.socket" (socketToUnit n v)) cfg.sockets
|
||
// mapAttrs' (n: v: nameValuePair "${n}.timer" (timerToUnit n v)) cfg.timers
|
||
// mapAttrs' (n: v: nameValuePair "${n}.path" (pathToUnit n v)) cfg.paths
|
||
// listToAttrs (map
|
||
(v: let n = escapeSystemdPath v.where;
|
||
in nameValuePair "${n}.mount" (mountToUnit n v)) cfg.mounts)
|
||
// listToAttrs (map
|
||
(v: let n = escapeSystemdPath v.where;
|
||
in nameValuePair "${n}.automount" (automountToUnit n v)) cfg.automounts);
|
||
|
||
systemd.user.units =
|
||
mapAttrs' (n: v: nameValuePair "${n}.service" (serviceToUnit n v)) cfg.user.services
|
||
// mapAttrs' (n: v: nameValuePair "${n}.socket" (socketToUnit n v)) cfg.user.sockets
|
||
// mapAttrs' (n: v: nameValuePair "${n}.timer" (timerToUnit n v)) cfg.user.timers;
|
||
|
||
system.requiredKernelConfig = map config.lib.kernelConfig.isEnabled
|
||
[ "DEVTMPFS" "CGROUPS" "INOTIFY_USER" "SIGNALFD" "TIMERFD" "EPOLL" "NET"
|
||
"SYSFS" "PROC_FS" "FHANDLE" "DMIID" "AUTOFS4_FS" "TMPFS_POSIX_ACL"
|
||
"TMPFS_XATTR" "SECCOMP"
|
||
];
|
||
|
||
environment.shellAliases =
|
||
{ start = "systemctl start";
|
||
stop = "systemctl stop";
|
||
restart = "systemctl restart";
|
||
status = "systemctl status";
|
||
};
|
||
|
||
users.extraGroups.systemd-journal.gid = config.ids.gids.systemd-journal;
|
||
users.extraUsers.systemd-journal-gateway.uid = config.ids.uids.systemd-journal-gateway;
|
||
users.extraGroups.systemd-journal-gateway.gid = config.ids.gids.systemd-journal-gateway;
|
||
|
||
# Generate timer units for all services that have a ‘startAt’ value.
|
||
systemd.timers =
|
||
mapAttrs (name: service:
|
||
{ wantedBy = [ "timers.target" ];
|
||
timerConfig.OnCalendar = service.startAt;
|
||
})
|
||
(filterAttrs (name: service: service.startAt != "") cfg.services);
|
||
|
||
systemd.sockets.systemd-journal-gatewayd.wantedBy =
|
||
optional config.services.journald.enableHttpGateway "sockets.target";
|
||
|
||
# Provide the systemd-user PAM service, required to run systemd
|
||
# user instances.
|
||
security.pam.services.systemd-user =
|
||
{ # Ensure that pam_systemd gets included. This is special-cased
|
||
# in systemd to provide XDG_RUNTIME_DIR.
|
||
startSession = true;
|
||
};
|
||
|
||
environment.etc."tmpfiles.d/x11.conf".source = "${systemd}/example/tmpfiles.d/x11.conf";
|
||
|
||
environment.etc."tmpfiles.d/nixos.conf".text =
|
||
''
|
||
# This file is created automatically and should not be modified.
|
||
# Please change the option ‘systemd.tmpfiles.rules’ instead.
|
||
|
||
z /var/log/journal 2755 root systemd-journal - -
|
||
z /var/log/journal/%m 2755 root systemd-journal - -
|
||
z /var/log/journal/%m/* 0640 root systemd-journal - -
|
||
|
||
${concatStringsSep "\n" cfg.tmpfiles.rules}
|
||
'';
|
||
|
||
# Some overrides to upstream units.
|
||
systemd.services."systemd-backlight@".restartIfChanged = false;
|
||
systemd.services."systemd-rfkill@".restartIfChanged = false;
|
||
systemd.services."user@".restartIfChanged = false;
|
||
systemd.services.systemd-journal-flush.restartIfChanged = false;
|
||
systemd.services.systemd-journald.restartIfChanged = false; # FIXME: shouldn't be necessary with systemd 219
|
||
systemd.services.systemd-random-seed.restartIfChanged = false;
|
||
systemd.services.systemd-remount-fs.restartIfChanged = false;
|
||
systemd.services.systemd-update-utmp.restartIfChanged = false;
|
||
systemd.services.systemd-user-sessions.restartIfChanged = false; # Restart kills all active sessions.
|
||
systemd.targets.local-fs.unitConfig.X-StopOnReconfiguration = true;
|
||
systemd.targets.remote-fs.unitConfig.X-StopOnReconfiguration = true;
|
||
|
||
# Don't bother with certain units in containers.
|
||
systemd.services.systemd-remount-fs.unitConfig.ConditionVirtualization = "!container";
|
||
systemd.services.systemd-random-seed.unitConfig.ConditionVirtualization = "!container";
|
||
|
||
};
|
||
|
||
}
|