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From 1da1ea11647a60339d063e2d613e692d4bfd79bd Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Thu, 26 Apr 2018 09:27:49 +0200
Subject: sysconfig: Don't disable IPV6_AUTOCONF

RH-Author: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-id: <20180426092749.7251-2-vkuznets@redhat.com>
Patchwork-id: 79904
O-Subject: [RHEL7.6/7.5.z cloud-init PATCH 1/1] sysconfig: Don't disable IPV6_AUTOCONF
Bugzilla: 1578702
RH-Acked-by: Mohammed Gamal <mgamal@redhat.com>
RH-Acked-by: Cathy Avery <cavery@redhat.com>
RH-Acked-by: Eduardo Otubo <otubo@redhat.com>

Downstream-only commit 118458a3fb ("sysconfig: Don't write BOOTPROTO=dhcp
for ipv6 dhcp") did two things:
1) Disabled BOOTPROTO='dhcp' for dhcp6 setups. This change seems to be
   correct as BOOTPROTO is unrelated to IPv6. The change was since merged
   upstream (commit a57928d3c314d9568712cd190cb1e721e14c108b).
2) Explicitly disabled AUTOCONF and this broke many valid configurations
   using it instead of DHCPV6C. Revert this part of the change. In case
   DHCPV6C-only support is needed something like a new 'dhcpv6c_only'
   network type needs to be suggested upstream.

X-downstream-only: yes

Resolves: rhbz#1558854

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 cloudinit/net/sysconfig.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py
index ec166cf..ae0554e 100644
--- a/cloudinit/net/sysconfig.py
+++ b/cloudinit/net/sysconfig.py
@@ -310,7 +310,6 @@ class Renderer(renderer.Renderer):
             if subnet_type == 'dhcp6':
                 iface_cfg['IPV6INIT'] = True
                 iface_cfg['DHCPV6C'] = True
-                iface_cfg['IPV6_AUTOCONF'] = False
             elif subnet_type in ['dhcp4', 'dhcp']:
                 iface_cfg['BOOTPROTO'] = 'dhcp'
             elif subnet_type == 'static':
-- 
1.8.3.1