124 lines
3.6 KiB
Nix
124 lines
3.6 KiB
Nix
{ config, lib , pkgs, ...}:
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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.nspawn;
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assertions = [
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# boot = true -> processtwo != true
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];
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checkExec = checkUnitConfig "Exec" [
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(assertOnlyFields [
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"Boot" "ProcessTwo" "Parameters" "Environment" "User" "WorkingDirectory"
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"Capability" "DropCapability" "KillSignal" "Personality" "MachineId"
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"PrivateUsers" "NotifyReady"
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])
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(assertValueOneOf "Boot" boolValues)
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(assertValueOneOf "ProcessTwo" boolValues)
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(assertValueOneOf "NotifyReady" boolValues)
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];
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checkFiles = checkUnitConfig "Files" [
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(assertOnlyFields [
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"ReadOnly" "Volatile" "Bind" "BindReadOnly" "TemporaryFileSystems"
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"PrivateUsersChown"
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])
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(assertValueOneOf "ReadOnly" boolValues)
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(assertValueOneOf "Volatile" (boolValues ++ [ "state" ]))
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(assertValueOneOf "PrivateUsersChown" boolValues)
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];
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checkNetwork = checkUnitConfig "Network" [
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(assertOnlyFields [
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"Private" "VirtualEthernet" "VirtualEthernetExtra" "Interface" "MACVLAN"
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"IPVLAN" "Bridge" "Zone" "Port"
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])
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(assertValueOneOf "Private" boolValues)
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(assertValueOneOf "VirtualEthernet" boolValues)
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];
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instanceOptions = {
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options = sharedOptions // {
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execConfig = mkOption {
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default = {};
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example = { Parameters = "/bin/sh"; };
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type = types.addCheck (types.attrsOf unitOption) checkExec;
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description = ''
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Each attribute in this set specifies an option in the
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<literal>[Exec]</literal> section of this unit. See
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<citerefentry><refentrytitle>systemd.nspawn</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry> for details.
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'';
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};
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filesConfig = mkOption {
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default = {};
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example = { Bind = [ "/home/alice" ]; };
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type = types.addCheck (types.attrsOf unitOption) checkFiles;
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description = ''
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Each attribute in this set specifies an option in the
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<literal>[Files]</literal> section of this unit. See
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<citerefentry><refentrytitle>systemd.nspawn</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry> for details.
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'';
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};
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networkConfig = mkOption {
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default = {};
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example = { Private = false; };
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type = types.addCheck (types.attrsOf unitOption) checkNetwork;
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description = ''
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Each attribute in this set specifies an option in the
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<literal>[Network]</literal> section of this unit. See
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<citerefentry><refentrytitle>systemd.nspawn</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry> for details.
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'';
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};
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};
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};
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instanceToUnit = name: def:
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let base = {
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text = ''
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[Exec]
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${attrsToSection def.execConfig}
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[Files]
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${attrsToSection def.filesConfig}
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[Network]
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${attrsToSection def.networkConfig}
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'';
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} // def;
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in base // { unit = makeUnit name base; };
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in {
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options = {
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systemd.nspawn = mkOption {
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default = {};
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type = with types; attrsOf (submodule instanceOptions);
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description = "Definition of systemd-nspawn configurations.";
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};
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};
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config =
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let
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units = mapAttrs' (n: v: let nspawnFile = "${n}.nspawn"; in nameValuePair nspawnFile (instanceToUnit nspawnFile v)) cfg;
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in mkIf (cfg != {}) {
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environment.etc."systemd/nspawn".source = generateUnits "nspawn" units [] [];
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systemd.services."systemd-nspawn@" = {
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wantedBy = [ "machine.target" ];
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};
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};
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}
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