uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/modules/services/misc/docker-registry.nix

@@ -0,0 +1,159 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.dockerRegistry;
+
+  blobCache = if cfg.enableRedisCache
+    then "redis"
+    else "inmemory";
+
+  registryConfig = {
+    version =  "0.1";
+    log.fields.service = "registry";
+    storage = {
+      cache.blobdescriptor = blobCache;
+      delete.enabled = cfg.enableDelete;
+    } // (if cfg.storagePath != null
+          then { filesystem.rootdirectory = cfg.storagePath; }
+          else {});
+    http = {
+      addr = "${cfg.listenAddress}:${builtins.toString cfg.port}";
+      headers.X-Content-Type-Options = ["nosniff"];
+    };
+    health.storagedriver = {
+      enabled = true;
+      interval = "10s";
+      threshold = 3;
+    };
+  };
+
+  registryConfig.redis = mkIf cfg.enableRedisCache {
+    addr = "${cfg.redisUrl}";
+    password = "${cfg.redisPassword}";
+    db = 0;
+    dialtimeout = "10ms";
+    readtimeout = "10ms";
+    writetimeout = "10ms";
+    pool = {
+      maxidle = 16;
+      maxactive = 64;
+      idletimeout = "300s";
+    };
+  };
+
+  configFile = pkgs.writeText "docker-registry-config.yml" (builtins.toJSON (recursiveUpdate registryConfig cfg.extraConfig));
+
+in {
+  options.services.dockerRegistry = {
+    enable = mkEnableOption "Docker Registry";
+
+    listenAddress = mkOption {
+      description = "Docker registry host or ip to bind to.";
+      default = "127.0.0.1";
+      type = types.str;
+    };
+
+    port = mkOption {
+      description = "Docker registry port to bind to.";
+      default = 5000;
+      type = types.port;
+    };
+
+    storagePath = mkOption {
+      type = types.nullOr types.path;
+      default = "/var/lib/docker-registry";
+      description = ''
+        Docker registry storage path for the filesystem storage backend. Set to
+        null to configure another backend via extraConfig.
+      '';
+    };
+
+    enableDelete = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable delete for manifests and blobs.";
+    };
+
+    enableRedisCache = mkEnableOption "redis as blob cache";
+
+    redisUrl = mkOption {
+      type = types.str;
+      default = "localhost:6379";
+      description = "Set redis host and port.";
+    };
+
+    redisPassword = mkOption {
+      type = types.str;
+      default = "";
+      description = "Set redis password.";
+    };
+
+    extraConfig = mkOption {
+      description = ''
+        Docker extra registry configuration via environment variables.
+      '';
+      default = {};
+      type = types.attrs;
+    };
+
+    enableGarbageCollect = mkEnableOption "garbage collect";
+
+    garbageCollectDates = mkOption {
+      default = "daily";
+      type = types.str;
+      description = ''
+        Specification (in the format described by
+        <citerefentry><refentrytitle>systemd.time</refentrytitle>
+        <manvolnum>7</manvolnum></citerefentry>) of the time at
+        which the garbage collect will occur.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.docker-registry = {
+      description = "Docker Container Registry";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" ];
+      script = ''
+        ${pkgs.docker-distribution}/bin/registry serve ${configFile}
+      '';
+
+      serviceConfig = {
+        User = "docker-registry";
+        WorkingDirectory = cfg.storagePath;
+        AmbientCapabilities = mkIf (cfg.port < 1024) "cap_net_bind_service";
+      };
+    };
+
+    systemd.services.docker-registry-garbage-collect = {
+      description = "Run Garbage Collection for docker registry";
+
+      restartIfChanged = false;
+      unitConfig.X-StopOnRemoval = false;
+
+      serviceConfig.Type = "oneshot";
+
+      script = ''
+        ${pkgs.docker-distribution}/bin/registry garbage-collect ${configFile}
+        /run/current-system/systemd/bin/systemctl restart docker-registry.service
+      '';
+
+      startAt = optional cfg.enableGarbageCollect cfg.garbageCollectDates;
+    };
+
+    users.users.docker-registry =
+      (if cfg.storagePath != null
+      then {
+        createHome = true;
+        home = cfg.storagePath;
+      }
+      else {}) // {
+        group = "docker-registry";
+        isSystemUser = true;
+      };
+    users.groups.docker-registry = {};
+  };
+}