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nixos: Add unit option overrideStrategy

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This commit is contained in:
Christian Kögler 2022-08-06 22:29:56 +02:00
parent b4c2844566
commit 6d31353099
2 changed files with 40 additions and 11 deletions
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16
nixos/lib/systemd-unit-options.nix
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@ -48,6 +48,22 @@ in rec {
'';
};
overrideStrategy = mkOption {
default = "asDropinIfExists";
type = types.enum [ "asDropinIfExists" "asDropin" ];
description = lib.mdDoc ''
Defines how unit configuration is provided for systemd:
`asDropinIfExists` creates a unit file when no unit file is provided by the package
otherwise a drop-in file name `overrides.conf`.
`asDropin` creates a drop-in file named `overrides.conf`.
Mainly needed to define instances for systemd template units (e.g. `systemd-nspawn@mycontainer.service`).
See also systemd.unit(1).
'';
};
requiredBy = mkOption {
default = [];
type = types.listOf unitNameType;