From 39b395b1fd41e5ac4066c5afd19b6ab9c17b8b14 Mon Sep 17 00:00:00 2001
From: alexandre derumier <aderumier@odiso.com>
Date: Thu, 1 Sep 2022 19:18:21 +0200
Subject: [PATCH] addons: openvswitch : add support for fakebridge.

Fake bridge are are ovsbridge child of a parent bridge with a specific vlan tag.

```
auto br-parent
iface br-parent inet manual
        ovs_type OVSBridge

auto br-fakev10
iface br-fakev10 inet manual
        ovs_type OVSBridge
        ovs_bridge br-parent
        ovs_options br-parent 10

```
---
 ifupdown2/addons/openvswitch.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/ifupdown2/addons/openvswitch.py b/ifupdown2/addons/openvswitch.py
index 2c9a76f..0a124ba 100644
--- a/ifupdown2/addons/openvswitch.py
+++ b/ifupdown2/addons/openvswitch.py
@@ -74,6 +74,10 @@ class openvswitch(Addon, moduleBase):
                     "required": False,
                     "example": ["ovs-ports-condone-regex ^[a-zA-Z0-9]+_v[0-9]{1,4}$"]
             },
+            'ovs-bridge': {
+                'help': 'Optional parent bridge for fake bridges',
+                'required': False,
+            },
         }
     }
 
@@ -147,13 +151,17 @@ class openvswitch(Addon, moduleBase):
         ovsextra = ifaceobj.get_attr_value('ovs-extra')
         ovsmtu = ifaceobj.get_attr_value_first ('ovs-mtu')
         ovsportscondoneregex = self._get_ovs_port_condone_regex(ifaceobj)
+        ovsparent = ifaceobj.get_attr_value_first ('ovs-bridge')
 
         cmd_list = []
 
         cmd = "--may-exist add-br %s"%(iface)
+        if ovsparent is not None and ovsoptions:
+            cmd = cmd + " %s" %(ovsoptions)
+
         cmd_list.append(cmd)
 
-        if ovsoptions:
+        if ovsparent is None and ovsoptions:
             cmd = "set bridge %s %s" %(iface, ovsoptions)
             cmd_list.append(cmd)