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, 17 insertions, 0 deletions

diff --git a/modules/usersDeclarativeUsers.nix b/modules/usersDeclarativeUsers.nix
new file mode 100644
index 0000000..2b5e2fc
--- /dev/null
+++ b/modules/usersDeclarativeUsers.nix
@@ -0,0 +1,17 @@
+{ config, lib, ... }:
+{
+  options.users.declarativeUsers  = lib.mkOption {
+    type = lib.types.nullOr config.contracts.declarativeUsers.consumer;
+    default = null;
+  };
+  config = lib.mkIf (config.users.declarativeUsers != null) {
+    users = {
+      users = lib.mapAttrs (name: _: {
+        isNormalUser = lib.mkIf (name != "root") (lib.mkDefault true);
+      })
+        config.users.declarativeUsers.output.users;
+      groups = lib.mapAttrs (_: _: {})
+        config.users.declarativeUsers.output.users;
+    };
+  };
+}