65 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			65 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ config, lib, pkgs, ... }:
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with lib;
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let
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  cfg = config.virtualisation.rkt;
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in
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{
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  options.virtualisation.rkt = {
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    enable = mkEnableOption "rkt metadata service";
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    gc = {
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      automatic = mkOption {
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        default = true;
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        type = types.bool;
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        description = "Automatically run the garbage collector at a specific time.";
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      };
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      dates = mkOption {
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        default = "03:15";
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        type = types.str;
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        description = ''
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          Specification (in the format described by
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          <citerefentry><refentrytitle>systemd.time</refentrytitle>
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          <manvolnum>7</manvolnum></citerefentry>) of the time at
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          which the garbage collector will run.
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        '';
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      };
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      options = mkOption {
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        default = "--grace-period=24h";
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        type = types.str;
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        description = ''
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          Options given to <filename>rkt gc</filename> when the
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          garbage collector is run automatically.
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        '';
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      };
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    };
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  };
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  config = mkIf cfg.enable {
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    environment.systemPackages = [ pkgs.rkt ];
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    systemd.services.rkt = {
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      description = "rkt metadata service";
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      wantedBy = [ "multi-user.target" ];
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      after = [ "network.target" ];
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      serviceConfig = {
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        ExecStart = "${pkgs.rkt}/bin/rkt metadata-service";
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      };
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    };
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    systemd.services.rkt-gc = {
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      description = "rkt garbage collection";
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      startAt = optionalString cfg.gc.automatic cfg.gc.dates;
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      serviceConfig = {
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        Type = "oneshot";
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        ExecStart = "${pkgs.rkt}/bin/rkt gc ${cfg.gc.options}";
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      };
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    };
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    users.groups.rkt = {};
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  };
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}
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