[pve-devel] [PATCH qemu-server] fix #1959: add fallback for 'auto' previously set by SLAAC

[David Limbeck]

SLAAC previously set 'auto' which is not supported by nocloud network
config. On an up-to-date Ubuntu this should work as it uses 'dhcp' for
both dhcp and SLAAC. For others it was invalid anyway.

Signed-off-by: David Limbeck <d.limbeck at proxmox.com>
---
 PVE/QemuServer/Cloudinit.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/PVE/QemuServer/Cloudinit.pm b/PVE/QemuServer/Cloudinit.pm
index 53f1de9..5be820c 100644
--- a/PVE/QemuServer/Cloudinit.pm
+++ b/PVE/QemuServer/Cloudinit.pm
@@ -340,6 +340,9 @@ sub nocloud_network {
 	if (defined(my $ip = $ipconfig->{ip6})) {
 	    if ($ip eq 'dhcp') {
 		$content .= "${i}- type: dhcp6\n";
+	    } elsif ($ip eq 'auto') {
+		# SLAAC is not supported by cloud-init, this fallback should work with an up-to-date netplan at least
+		$content .= "${i}- type: dhcp6\n";
 	    } else {
 		$content .= "${i}- type: static\n"
 		       . "${i}  address: $ip\n";
-- 
2.11.0