diff --git a/tcp_tests/managers/envmanager_devops.py b/tcp_tests/managers/envmanager_devops.py
index 8655675..958e7f1 100644
--- a/tcp_tests/managers/envmanager_devops.py
+++ b/tcp_tests/managers/envmanager_devops.py
@@ -48,7 +48,11 @@
         self.__config = config
 
         if config.hardware.conf_path is not None:
-            self._devops_config.load_template(config.hardware.conf_path)
+            options = {
+                'config': self.__config,
+            }
+            self._devops_config.load_template(config.hardware.conf_path,
+                                              options=options)
         else:
             raise Exception("Devops YAML template is not set in config object")
 
@@ -158,6 +162,7 @@
                 'host': self.node_ip(d_node),
                 'login': settings.SSH_NODE_CREDENTIALS['login'],
                 'password': settings.SSH_NODE_CREDENTIALS['password'],
+                'keys': [k['private'] for k in self.__config.underlay.ssh_keys]
             }
             config_ssh.append(ssh_data)
         return config_ssh
@@ -198,14 +203,16 @@
                  "dos.py revert {env_name} {snapshot_name};\n"
                  "dos.py resume {env_name};\n"
                  "# dos.py time-sync {env_name};  # Optional\n"
-                 "ssh {login}@{salt_master_host}  # Password: {password}\n"
+                 "ssh -i {key_file} {login}@{salt_master_host} "
+                 "# Optional password: {password}\n"
                  "************************************\n"
                  .format(venv_msg=venv_msg,
                          env_name=self._d_env_name,
                          snapshot_name=name,
                          login=settings.SSH_NODE_CREDENTIALS['login'],
                          password=settings.SSH_NODE_CREDENTIALS['password'],
-                         salt_master_host=self.__config.salt.salt_master_host))
+                         salt_master_host=self.__config.salt.salt_master_host,
+                         key_file=self.__config.underlay.ssh_key_file))
 
     def _get_snapshot_config_name(self, snapshot_name):
         """Get config name for the environment"""
diff --git a/tcp_tests/managers/underlay_ssh_manager.py b/tcp_tests/managers/underlay_ssh_manager.py
index 18095c6..f30d7a0 100644
--- a/tcp_tests/managers/underlay_ssh_manager.py
+++ b/tcp_tests/managers/underlay_ssh_manager.py
@@ -13,6 +13,7 @@
 #    under the License.
 
 import random
+import StringIO
 
 from devops.helpers import helpers
 from devops.helpers import ssh_client
@@ -233,7 +234,8 @@
             port=ssh_data['port'] or 22,
             username=ssh_data['login'],
             password=ssh_data['password'],
-            private_keys=ssh_data['keys'])
+            private_keys=[rsakey.RSAKey(file_obj=StringIO.StringIO(key))
+                          for key in ssh_data['keys']])
 
     def check_call(
             self, cmd,