From 7808957452118e1f8fa8adc679f8ab34c349159f Mon Sep 17 00:00:00 2001
From: Federico Ressi <fressi@redhat.com>
Date: Thu, 14 Mar 2019 12:06:42 +0100
Subject: [PATCH] Make Heat and Neutron clients creation lazy (just-in-time).

Change-Id: I14bf6b9271d81049a954946640be4c6dc7a1eb85
---
 tobiko/common/managers/network.py | 10 +++++++++-
 tobiko/common/managers/stack.py   | 10 +++++++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/tobiko/common/managers/network.py b/tobiko/common/managers/network.py
index 6ae5baa97..137b3ec57 100644
--- a/tobiko/common/managers/network.py
+++ b/tobiko/common/managers/network.py
@@ -18,7 +18,15 @@ class NetworkManager(object):
     """Manages Neutron Resources."""
 
     def __init__(self, client_manager):
-        self.client = client_manager.neutron_client
+        self._client_manager = client_manager
+
+    _client = None
+
+    @property
+    def client(self):
+        if not self._client:
+            self._client = self._client_manager.network_client
+        return self._client
 
     def create_sg_rules(self, rules, sg_id):
         """Creates security group rules."""
diff --git a/tobiko/common/managers/stack.py b/tobiko/common/managers/stack.py
index 9ce4e539f..113b4fc64 100644
--- a/tobiko/common/managers/stack.py
+++ b/tobiko/common/managers/stack.py
@@ -41,10 +41,18 @@ class StackManager(object):
     """Manages Heat stacks."""
 
     def __init__(self, client_manager, templates_dir, wait_interval=5):
-        self.client = client_manager.heat_client
+        self._client_manager = client_manager
         self.templates_dir = templates_dir
         self.wait_interval = wait_interval
 
+    _client = None
+
+    @property
+    def client(self):
+        if not self._client:
+            self._client = self._client_manager.heat_client
+        return self._client
+
     def load_template(self, template_path):
         """Loads template from a given file."""
         _, template = template_utils.get_template_contents(template_path)