From fac98983187c0984aa79c569c4b76cab90fd6f47 Mon Sep 17 00:00:00 2001 From: Harald Jensås Date: Wed, 16 Oct 2019 15:30:28 +0000 Subject: net: handle openstack dhcpv6-stateless configuration Openstack subnets can be configured to use SLAAC by setting ipv6_address_mode=dhcpv6-stateless. When this is the case the sysconfig interface configuration should use IPV6_AUTOCONF=yes and not set DHCPV6C=yes. This change sets the subnets type property to the full network['type'] from openstack metadata. cloudinit/net/sysconfig.py and cloudinit/net/eni.py are updated to support new subnet types: - 'ipv6_dhcpv6-stateless' => IPV6_AUTOCONF=yes - 'ipv6_dhcpv6-stateful' => DHCPV6C=yes Type 'dhcp6' in sysconfig is kept for backward compatibility with any implementations that set subnet_type == 'dhcp6'. LP: #1847517 --- cloudinit/net/eni.py | 7 ++++++- cloudinit/net/sysconfig.py | 7 ++++++- 2 files changed, 12 insertions(+), 2 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index b129bb62..530922b5 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -411,8 +411,13 @@ class Renderer(renderer.Renderer): else: ipv4_subnet_mtu = subnet.get('mtu') iface['inet'] = subnet_inet - if subnet['type'].startswith('dhcp'): + if (subnet['type'] == 'dhcp4' or subnet['type'] == 'dhcp6' or + subnet['type'] == 'ipv6_dhcpv6-stateful'): + # Configure network settings using DHCP or DHCPv6 iface['mode'] = 'dhcp' + elif subnet['type'] == 'ipv6_dhcpv6-stateless': + # Configure network settings using SLAAC from RAs + iface['mode'] = 'auto' # do not emit multiple 'auto $IFACE' lines as older (precise) # ifupdown complains diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py index 87b548e5..4e656768 100644 --- a/cloudinit/net/sysconfig.py +++ b/cloudinit/net/sysconfig.py @@ -343,10 +343,15 @@ class Renderer(renderer.Renderer): for i, subnet in enumerate(subnets, start=len(iface_cfg.children)): mtu_key = 'MTU' subnet_type = subnet.get('type') - if subnet_type == 'dhcp6': + if subnet_type == 'dhcp6' or subnet_type == 'ipv6_dhcpv6-stateful': # TODO need to set BOOTPROTO to dhcp6 on SUSE iface_cfg['IPV6INIT'] = True + # Configure network settings using DHCPv6 iface_cfg['DHCPV6C'] = True + elif subnet_type == 'ipv6_dhcpv6-stateless': + iface_cfg['IPV6INIT'] = True + # Configure network settings using SLAAC from RAs + iface_cfg['IPV6_AUTOCONF'] = True elif subnet_type in ['dhcp4', 'dhcp']: iface_cfg['BOOTPROTO'] = 'dhcp' elif subnet_type == 'static': -- cgit v1.2.3