1 files changed, 67 insertions, 0 deletions
diff --git a/nixos/modules/services/admin/salt/minion.nix b/nixos/modules/services/admin/salt/minion.nix
new file mode 100644
index 00000000000..ac124c570d8
--- /dev/null
+++ b/nixos/modules/services/admin/salt/minion.nix
@@ -0,0 +1,67 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+
+  cfg  = config.services.salt.minion;
+
+  fullConfig = lib.recursiveUpdate {
+    # Provide defaults for some directories to allow an immutable config dir
+    # NOTE: the config dir being immutable prevents `minion_id` caching
+
+    # Default is equivalent to /etc/salt/minion.d/*.conf
+    default_include = "/var/lib/salt/minion.d/*.conf";
+    # Default is in /etc/salt/pki/minion
+    pki_dir = "/var/lib/salt/pki/minion";
+  } cfg.configuration;
+
+in
+
+{
+  options = {
+    services.salt.minion = {
+      enable = mkEnableOption "Salt minion service";
+      configuration = mkOption {
+        type = types.attrs;
+        default = {};
+        description = ''
+          Salt minion configuration as Nix attribute set.
+          See <link xlink:href="https://docs.saltstack.com/en/latest/ref/configuration/minion.html"/>
+          for details.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment = {
+      # Set this up in /etc/salt/minion so `salt-call`, etc. work.
+      # The alternatives are
+      # - passing --config-dir to all salt commands, not just the minion unit,
+      # - setting aglobal environment variable.
+      etc."salt/minion".source = pkgs.writeText "minion" (
+        builtins.toJSON fullConfig
+      );
+      systemPackages = with pkgs; [ salt ];
+    };
+    systemd.services.salt-minion = {
+      description = "Salt Minion";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" ];
+      path = with pkgs; [
+        util-linux
+      ];
+      serviceConfig = {
+        ExecStart = "${pkgs.salt}/bin/salt-minion";
+        LimitNOFILE = 8192;
+        Type = "notify";
+        NotifyAccess = "all";
+      };
+      restartTriggers = [
+        config.environment.etc."salt/minion".source
+      ];
+    };
+  };
+}
+