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containerd.nix (1971B)

      1 { config, lib, pkgs, ... }:
      2 let
      3   cfg = config.virtualisation.mycontainerd;
      4 
      5   inherit (lib) mkOption types mkIf;
      6 in
      7 {
      8   options.virtualisation.mycontainerd = {
      9     enable = mkOption {
     10       type = types.bool;
     11       default = false;
     12       description = ''
     13         This option enables containerd, a daemon that manages linux containers.
     14       '';
     15     };
     16 
     17     autostart = mkOption {
     18       type = types.bool;
     19       default = true;
     20       description = ''
     21         Start containerd automatically.
     22       '';
     23     };
     24 
     25     package = mkOption {
     26       default = pkgs.containerd;
     27       type = types.package;
     28       example = pkgs.containerd;
     29       description = ''
     30         Containerd package to be used in the module
     31       '';
     32     };
     33 
     34     extraPackages = mkOption {
     35       type = types.listOf types.package;
     36       default = [ pkgs.runc pkgs.cni pkgs.cni-plugins ];
     37       description = "List of packages to be added to containerd service path";
     38     };
     39 
     40     extraOptions = mkOption {
     41       type = types.separatedString " ";
     42       default = "";
     43       description =
     44         ''
     45           The extra command-line options to pass to
     46           <command>containerd</command> daemon.
     47         '';
     48     };
     49   };
     50 
     51   config = mkIf cfg.enable {
     52     environment.systemPackages = [ cfg.package ];
     53     systemd.packages = [ cfg.package ];
     54 
     55     systemd.services.containerd = {
     56       wantedBy = lib.optional cfg.autostart [ "multi-user.target" ];
     57       serviceConfig = {
     58         ExecStart = [
     59           ""
     60           ''
     61             ${cfg.package}/bin/containerd \
     62             ${cfg.extraOptions}
     63           ''
     64         ];
     65       };
     66       path = [ cfg.package ] ++ cfg.extraPackages;
     67     };
     68 
     69 
     70     systemd.sockets.containerd = {
     71       description = "Containerd Socket for the API";
     72       wantedBy = [ "sockets.target" ];
     73       socketConfig = {
     74         ListenStream = "/run/containerd/containerd.sock";
     75         SocketMode = "0660";
     76         SocketUser = "root";
     77         SocketGroup = "root";
     78       };
     79     };
     80 
     81   };
     82 
     83 
     84 }