90 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			90 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{
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  config,
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  lib,
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  ...
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}: let
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  export_directory = config.host.network_storage.export_directory;
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in {
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  imports = [
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    ./nfs.nix
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  ];
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  options = {
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    host.network_storage = {
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      enable = lib.mkEnableOption "is this machine going to export network storage";
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      export_directory = lib.mkOption {
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        type = lib.types.path;
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        description = "what are exports going to be stored in";
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        default = "/exports";
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      };
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      directories = lib.mkOption {
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        type = lib.types.listOf (lib.types.submodule ({config, ...}: {
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          options = {
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            folder = lib.mkOption {
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              type = lib.types.str;
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              description = "what is the name of this export directory";
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            };
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            bind = lib.mkOption {
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              type = lib.types.nullOr lib.types.path;
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              description = "is this directory bound to anywhere";
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              default = null;
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            };
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            user = lib.mkOption {
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              type = lib.types.str;
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              description = "what user owns this directory";
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              default = "nouser";
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            };
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            group = lib.mkOption {
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              type = lib.types.str;
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              description = "what group owns this directory";
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              default = "nogroup";
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            };
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            _directory = lib.mkOption {
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              internal = true;
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              readOnly = true;
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              type = lib.types.path;
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              default = "${export_directory}/${config.folder}";
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            };
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          };
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        }));
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        description = "list of directory names to export";
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      };
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    };
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  };
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  config = lib.mkIf config.host.network_storage.enable (lib.mkMerge [
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    {
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      # create any folders that we need to have for our exports
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      systemd.tmpfiles.rules =
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        [
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          "d ${config.host.network_storage.export_directory} 2775 nobody nogroup -"
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        ]
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        ++ (
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          builtins.map (
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            directory: "d ${directory._directory} 2770 ${directory.user} ${directory.group}"
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          )
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          config.host.network_storage.directories
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        );
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      # set up any bind mounts that we need for our exports
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      fileSystems = builtins.listToAttrs (
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        builtins.map (directory:
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          lib.attrsets.nameValuePair directory._directory {
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            device = directory.bind;
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            options = ["bind"];
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          }) (
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          builtins.filter (directory: directory.bind != null) config.host.network_storage.directories
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        )
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      );
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    }
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    # (lib.mkIf config.host.impermanence.enable {
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    #   environment.persistence."/persist/system/root" = {
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    #     enable = true;
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    #     hideMounts = true;
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    #     directories = [
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    #       config.host.network_storage.export_directory
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    #     ];
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    #   };
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    # })
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  ]);
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}
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