From b9af2588b8fe98d293bac222ce26104b2119ff2a Mon Sep 17 00:00:00 2001
From: Eduardo Olivares <eolivare@redhat.com>
Date: Wed, 20 Mar 2024 11:47:32 +0100
Subject: [PATCH] Lock external network stack creation between workers

In order to avoid concurrency issues when the
ExternalNetworkStackFixture stack or any of its child classes
(RouterStackFixture) are created, the interworker_synched decorator
is added to its setup_fixture method.

Change-Id: I94a2e86838020b6ca9faf77b9f5fd4f2f45b9167
---
 tobiko/openstack/stacks/_neutron.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tobiko/openstack/stacks/_neutron.py b/tobiko/openstack/stacks/_neutron.py
index a226803b0..dd019233c 100644
--- a/tobiko/openstack/stacks/_neutron.py
+++ b/tobiko/openstack/stacks/_neutron.py
@@ -41,6 +41,10 @@ class ExternalNetworkStackFixture(heat.HeatStackFixture):
 
     template = _hot.heat_template_file('neutron/external_network.yaml')
 
+    @tobiko.interworker_synched('create_external_network_stack')
+    def setup_stack(self):
+        super().setup_stack()
+
     @property
     def external_name(self) -> typing.Optional[str]:
         return tobiko.tobiko_config().neutron.external_network