diff --git a/doc/source/devops_underlay.conf.example.rst b/doc/source/devops_underlay.conf.example.rst
new file mode 100644
index 0000000..5916756
--- /dev/null
+++ b/doc/source/devops_underlay.conf.example.rst
@@ -0,0 +1,18 @@
+.. _devops_underlay.conf.example:
+
+.. code-block:: ini
+
+    #this config can be used to provide access to underlay layer of the lab that is managed with fuel-devops
+    [hardware]
+    manager='devops'
+    conf_path='fuel_ccp_tests/tests/fixtures/templates/default.yaml'
+
+    [underlay]
+    ssh='[{'node_name': node1,
+           'host': hostname,
+           'login': login,
+           'password': password,
+           'address_pool': (optional),
+           'port': (optional),
+           'keys': [(optional)],
+         }]'
\ No newline at end of file
diff --git a/fuel_ccp_tests/fixtures/config_fixtures.py b/fuel_ccp_tests/fixtures/config_fixtures.py
index 2dea6b7..835de60 100644
--- a/fuel_ccp_tests/fixtures/config_fixtures.py
+++ b/fuel_ccp_tests/fixtures/config_fixtures.py
@@ -11,6 +11,7 @@
 #    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 fuel_ccp_tests import settings_oslo
 
@@ -19,6 +20,12 @@ from fuel_ccp_tests import settings_oslo
 def config(request):
 
     config_files = []
+
+    tests_configs = os.environ.get('TESTS_CONFIGS', None)
+    if tests_configs:
+        for test_config in tests_configs.split(','):
+            config_files.append(test_config)
+
     config_opts = settings_oslo.load_config(config_files)
 
     return config_opts