48 lines
1.3 KiB
XML
48 lines
1.3 KiB
XML
<section xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="sec-importing-modules">
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<title>Importing Modules</title>
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<para>
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Sometimes NixOS modules need to be used in configuration but exist
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outside of Nixpkgs. These modules can be imported:
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</para>
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<programlisting language="bash">
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{ config, lib, pkgs, ... }:
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{
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imports =
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[ # Use a locally-available module definition in
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# ./example-module/default.nix
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./example-module
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];
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services.exampleModule.enable = true;
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}
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</programlisting>
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<para>
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The environment variable <literal>NIXOS_EXTRA_MODULE_PATH</literal>
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is an absolute path to a NixOS module that is included alongside the
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Nixpkgs NixOS modules. Like any NixOS module, this module can import
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additional modules:
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</para>
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<programlisting language="bash">
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# ./module-list/default.nix
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[
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./example-module1
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./example-module2
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]
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</programlisting>
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<programlisting language="bash">
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# ./extra-module/default.nix
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{ imports = import ./module-list.nix; }
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</programlisting>
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<programlisting language="bash">
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# NIXOS_EXTRA_MODULE_PATH=/absolute/path/to/extra-module
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{ config, lib, pkgs, ... }:
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{
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# No `imports` needed
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services.exampleModule1.enable = true;
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}
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</programlisting>
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</section>
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