120 lines
6.0 KiB
Diff
120 lines
6.0 KiB
Diff
From f0fb841883b80c71618582e43e1b3cd87a0dcb58 Mon Sep 17 00:00:00 2001
|
|
From: Major Hayden <major@redhat.com>
|
|
Date: Mon, 1 Apr 2024 18:28:12 +0000
|
|
Subject: [PATCH] ec2: Do not enable dhcp6 on EC2 (#5104)
|
|
|
|
When cloud-init finds any ipv6 information in the instance metadata, it
|
|
automatically enables dhcp6 for the network interface. However, this
|
|
brings up the instance with a broken IPv6 configuration because SLAAC
|
|
should be used for almost all situations on EC2.
|
|
|
|
Red Hat BZ: https://bugzilla.redhat.com/show_bug.cgi?id=2092459
|
|
Fedora Pagure: https://pagure.io/cloud-sig/issue/382
|
|
Upstream: https://bugs.launchpad.net/cloud-init/+bug/1976526
|
|
|
|
Fixes GH-3980
|
|
|
|
Reference:https://github.com/canonical/cloud-init/commit/f0fb841883b80c71618582e43e1b3cd87a0dcb58
|
|
Conflict:(1)Delete one more line of code. The content is "if nic_metadata.get('ipv6s'): # Any IPv6 addresses configured"
|
|
(2)The test cases are modified differently because the version is too early.
|
|
|
|
Signed-off-by: Major Hayden <major@redhat.com>
|
|
---
|
|
cloudinit/sources/DataSourceEc2.py | 5 -----
|
|
tests/unittests/test_datasource/test_ec2.py | 14 +++++++-------
|
|
2 files changed, 7 insertions(+), 12 deletions(-)
|
|
|
|
diff --git a/cloudinit/sources/DataSourceEc2.py b/cloudinit/sources/DataSourceEc2.py
|
|
index 700437b..2d869db 100644
|
|
--- a/cloudinit/sources/DataSourceEc2.py
|
|
+++ b/cloudinit/sources/DataSourceEc2.py
|
|
@@ -773,8 +773,6 @@ def convert_ec2_metadata_network_config(
|
|
'match': {'macaddress': mac.lower()},
|
|
'set-name': nic_name}
|
|
nic_metadata = macs_metadata.get(mac)
|
|
- if nic_metadata.get('ipv6s'): # Any IPv6 addresses configured
|
|
- dev_config['dhcp6'] = True
|
|
netcfg['ethernets'][nic_name] = dev_config
|
|
return netcfg
|
|
# Apply network config for all nics and any secondary IPv4/v6 addresses
|
|
@@ -791,9 +789,6 @@ def convert_ec2_metadata_network_config(
|
|
'dhcp6': False,
|
|
'match': {'macaddress': mac.lower()},
|
|
'set-name': nic_name}
|
|
- if nic_metadata.get('ipv6s'): # Any IPv6 addresses configured
|
|
- dev_config['dhcp6'] = True
|
|
- dev_config['dhcp6-overrides'] = dhcp_override
|
|
dev_config['addresses'] = get_secondary_addresses(nic_metadata, mac)
|
|
if not dev_config['addresses']:
|
|
dev_config.pop('addresses') # Since we found none configured
|
|
diff --git a/tests/unittests/test_datasource/test_ec2.py b/tests/unittests/test_datasource/test_ec2.py
|
|
index a93f219..f932e73 100644
|
|
--- a/tests/unittests/test_datasource/test_ec2.py
|
|
+++ b/tests/unittests/test_datasource/test_ec2.py
|
|
@@ -399,7 +399,7 @@ class TestEc2(test_helpers.HttprettyTestCase):
|
|
mac1 = '06:17:04:d7:26:09' # Defined in DEFAULT_METADATA
|
|
expected = {'version': 2, 'ethernets': {'eth9': {
|
|
'match': {'macaddress': '06:17:04:d7:26:09'}, 'set-name': 'eth9',
|
|
- 'dhcp4': True, 'dhcp6': True}}}
|
|
+ 'dhcp4': True, 'dhcp6': False}}}
|
|
patch_path = M_PATH_NET + 'get_interfaces_by_mac'
|
|
get_interface_mac_path = M_PATH_NET + 'get_interface_mac'
|
|
with mock.patch(patch_path) as m_get_interfaces_by_mac:
|
|
@@ -460,7 +460,7 @@ class TestEc2(test_helpers.HttprettyTestCase):
|
|
'addresses': ['172.31.45.70/20',
|
|
'2600:1f16:292:100:f152:2222:3333:4444/128',
|
|
'2600:1f16:292:100:f153:12a3:c37c:11f9/128'],
|
|
- 'dhcp4': True, 'dhcp6': True}}}
|
|
+ 'dhcp4': True, 'dhcp6': False}}}
|
|
patch_path = M_PATH_NET + 'get_interfaces_by_mac'
|
|
get_interface_mac_path = M_PATH_NET + 'get_interface_mac'
|
|
with mock.patch(patch_path) as m_get_interfaces_by_mac:
|
|
@@ -509,7 +509,7 @@ class TestEc2(test_helpers.HttprettyTestCase):
|
|
self.logs.getvalue())
|
|
expected = {'version': 2, 'ethernets': {'eth9': {
|
|
'match': {'macaddress': mac1}, 'set-name': 'eth9',
|
|
- 'dhcp4': True, 'dhcp6': True}}}
|
|
+ 'dhcp4': True, 'dhcp6': False}}}
|
|
self.assertEqual(expected, ds.network_config)
|
|
|
|
def test_ec2_get_instance_id_refreshes_identity_on_upgrade(self):
|
|
@@ -825,7 +825,7 @@ class TestConvertEc2MetadataNetworkConfig(test_helpers.CiTestCase):
|
|
nic1_metadata.pop('public-ipv4s')
|
|
expected = {'version': 2, 'ethernets': {'eth9': {
|
|
'match': {'macaddress': self.mac1}, 'set-name': 'eth9',
|
|
- 'dhcp4': True, 'dhcp6': True}}}
|
|
+ 'dhcp4': True, 'dhcp6': False}}}
|
|
self.assertEqual(
|
|
expected,
|
|
ec2.convert_ec2_metadata_network_config(
|
|
@@ -875,7 +875,7 @@ class TestConvertEc2MetadataNetworkConfig(test_helpers.CiTestCase):
|
|
nic1_metadata['local-ipv4s'] = '10.0.0.42' # Local ipv4 only on vpc
|
|
expected = {'version': 2, 'ethernets': {'eth9': {
|
|
'match': {'macaddress': self.mac1}, 'set-name': 'eth9',
|
|
- 'dhcp4': True, 'dhcp6': True}}}
|
|
+ 'dhcp4': True, 'dhcp6': False}}}
|
|
self.assertEqual(
|
|
expected,
|
|
ec2.convert_ec2_metadata_network_config(
|
|
@@ -897,7 +897,7 @@ class TestConvertEc2MetadataNetworkConfig(test_helpers.CiTestCase):
|
|
'eth9': {
|
|
'match': {'macaddress': self.mac1}, 'set-name': 'eth9',
|
|
'dhcp4': True, 'dhcp4-overrides': {'route-metric': 100},
|
|
- 'dhcp6': True, 'dhcp6-overrides': {'route-metric': 100}},
|
|
+ 'dhcp6': False},
|
|
'eth10': {
|
|
'match': {'macaddress': mac2}, 'set-name': 'eth10',
|
|
'dhcp4': True, 'dhcp4-overrides': {'route-metric': 200},
|
|
@@ -916,7 +916,7 @@ class TestConvertEc2MetadataNetworkConfig(test_helpers.CiTestCase):
|
|
nic1_metadata['ipv6s'] = '2620:0:1009:fd00:e442:c88d:c04d:dc85/64'
|
|
expected = {'version': 2, 'ethernets': {'eth9': {
|
|
'match': {'macaddress': self.mac1}, 'set-name': 'eth9',
|
|
- 'dhcp4': True, 'dhcp6': True}}}
|
|
+ 'dhcp4': True, 'dhcp6': False}}}
|
|
self.assertEqual(
|
|
expected,
|
|
ec2.convert_ec2_metadata_network_config(
|
|
--
|
|
2.33.0
|
|
|