update charts
diff --git a/charts/k8s-gerrit/tests/fixtures/credentials.py b/charts/k8s-gerrit/tests/fixtures/credentials.py
new file mode 100644
index 0000000..de39dc1
--- /dev/null
+++ b/charts/k8s-gerrit/tests/fixtures/credentials.py
@@ -0,0 +1,39 @@
+# pylint: disable=W0613
+
+# Copyright (C) 2022 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+
+import pytest
+
+from passlib.apache import HtpasswdFile
+
+import utils
+
+
+@pytest.fixture(scope="session")
+def credentials_dir(tmp_path_factory):
+    return tmp_path_factory.mktemp("creds")
+
+
+@pytest.fixture(scope="session")
+def htpasswd(credentials_dir):
+    basic_auth_creds = {"user": "admin", "password": utils.create_random_string(16)}
+    htpasswd_file = HtpasswdFile(os.path.join(credentials_dir, ".htpasswd"), new=True)
+    htpasswd_file.set_password(basic_auth_creds["user"], basic_auth_creds["password"])
+    htpasswd_file.save()
+    basic_auth_creds["htpasswd_string"] = htpasswd_file.to_string()
+    basic_auth_creds["htpasswd_file"] = credentials_dir
+    yield basic_auth_creds