add `declarativeUsers` contractmain

- example consumer `users.declarativeUsers` (creates users as Linux
  users)
- example provider `hardcodedUsers.<group>` (static configuration of
  user groups (each group is a `declarativeUsers` provider)

1 files changed, 20 insertions, 0 deletions

diff --git a/modules/hardcodedUsers.nix b/modules/hardcodedUsers.nix
new file mode 100644
index 0000000..344daf2
--- /dev/null
+++ b/modules/hardcodedUsers.nix
@@ -0,0 +1,20 @@
+{ config, lib, ... }: {
+  options.hardcodedUsers = lib.mkOption {
+    type = lib.types.attrsOf (lib.types.submodule (mod: {
+      options = {
+        users = lib.mkOption {
+          type = lib.types.attrsOf (lib.types.submodule {});
+          default = {};
+        };
+        declarativeUsers = lib.mkOption {
+          type = config.contracts.declarativeUsers.provider;
+          default = null;
+        };
+      };
+    }));
+    default = {};
+  };
+  config.hardcodedUsers.default.declarativeUsers.output = {
+    inherit (config.hardcodedUsers.default) users;
+  };
+}