Seeds: use ADMIN_PASSWORD/ADMIN_PASSWORD_FILE; fallback only in dev/test

No fallback in production; prod uses Release.seed_admin in entrypoint.

priv/repo/seeds.exs

@@ -135,6 +135,23 @@ end
 # Get admin email from environment variable or use default
 admin_email = System.get_env("ADMIN_EMAIL") || "admin@localhost"
 
+# Admin password: use ADMIN_PASSWORD or ADMIN_PASSWORD_FILE if set; otherwise fallback
+# only in dev/test (no fallback in production - prod uses Release.seed_admin in entrypoint)
+get_admin_password = fn ->
+  from_file =
+    System.get_env("ADMIN_PASSWORD_FILE") |> then(fn path -> path && File.read(path) end)
+
+  from_env = System.get_env("ADMIN_PASSWORD")
+
+  case {from_file, from_env} do
+    {{:ok, content}, _} -> String.trim_trailing(content)
+    {_, p} when is_binary(p) and p != "" -> p
+    _ -> if Mix.env() in [:dev, :test], do: "testpassword", else: nil
+  end
+end
+
+admin_password = get_admin_password.()
+
 # Create all authorization roles (idempotent - creates only if they don't exist)
 # Roles are created using create_role_with_system_flag to allow setting is_system_role
 role_configs = [
@@ -215,34 +232,50 @@ if is_nil(admin_role) do
 end
 
 # Assign admin role to user with ADMIN_EMAIL (if user exists)
-# This handles both existing users (e.g., from OIDC) and newly created users
+# This handles both existing users (e.g., from OIDC) and newly created users.
+# Password: use admin_password (from ENV or dev/test fallback); if nil, do not set password (prod-safe).
 case Accounts.User
      |> Ash.Query.filter(email == ^admin_email)
      |> Ash.read_one(domain: Mv.Accounts, authorize?: false) do
   {:ok, existing_admin_user} when not is_nil(existing_admin_user) ->
-    # User already exists (e.g., via OIDC) - assign admin role
-    # Use authorize?: false for bootstrap - this is initial setup
-    existing_admin_user
+    # User already exists (e.g., via OIDC) - set password if we have one, then assign admin role
+    user_after_password =
+      if is_binary(admin_password) and admin_password != "" do
+        existing_admin_user
+        |> Ash.Changeset.for_update(:admin_set_password, %{password: admin_password})
+        |> Ash.update!(authorize?: false)
+      else
+        existing_admin_user
+      end
+
+    user_after_password
     |> Ash.Changeset.for_update(:update, %{})
     |> Ash.Changeset.manage_relationship(:role, admin_role, type: :append_and_remove)
     |> Ash.update!(authorize?: false)
 
   {:ok, nil} ->
-    # User doesn't exist - create admin user and set password (so Password column shows "Enabled")
+    # User doesn't exist - create admin user; set password only if we have one (no fallback in prod)
     # Use authorize?: false for bootstrap - no admin user exists yet to use as actor
-    Accounts.create_user!(%{email: admin_email},
-      upsert?: true,
-      upsert_identity: :unique_email,
-      authorize?: false
-    )
-    |> Ash.Changeset.for_update(:admin_set_password, %{password: "testpassword"})
+    user =
+      Accounts.create_user!(%{email: admin_email},
+        upsert?: true,
+        upsert_identity: :unique_email,
+        authorize?: false
+      )
+
+    user =
+      if is_binary(admin_password) and admin_password != "" do
+        user
+        |> Ash.Changeset.for_update(:admin_set_password, %{password: admin_password})
+        |> Ash.update!(authorize?: false)
+      else
+        user
+      end
+
+    user
+    |> Ash.Changeset.for_update(:update, %{})
+    |> Ash.Changeset.manage_relationship(:role, admin_role, type: :append_and_remove)
     |> Ash.update!(authorize?: false)
-    |> then(fn user ->
-      user
-      |> Ash.Changeset.for_update(:update, %{})
-      |> Ash.Changeset.manage_relationship(:role, admin_role, type: :append_and_remove)
-      |> Ash.update!(authorize?: false)
-    end)
 
   {:error, error} ->
     raise "Failed to check for existing admin user: #{inspect(error)}"
@@ -747,7 +780,11 @@ IO.puts("📝 Created sample data:")
 IO.puts("   - Global settings: club_name = #{default_club_name}")
 IO.puts("   - Membership fee types: 4 types (Yearly, Half-yearly, Quarterly, Monthly)")
 IO.puts("   - Custom fields: 12 fields (String, Date, Boolean, Email, + 8 realistic fields)")
-IO.puts("   - Admin user: #{admin_email} (password: testpassword)")
+
+IO.puts(
+  "   - Admin user: #{admin_email} (password: #{if admin_password, do: "set", else: "not set"})"
+)
+
 IO.puts("   - Sample members: Hans, Greta, Friedrich")
 
 IO.puts(