MSVSphere Packaging Team
7 months ago
parent
2c94c388e8
commit
62449e1613
@ -0,0 +1,351 @@
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From 1368b36c838b2dabb7fdf06bbe8f3ddfbf50b4f2 Mon Sep 17 00:00:00 2001
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From: Ani Sinha <anisinha@redhat.com>
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Date: Thu, 20 Jun 2024 22:27:03 +0530
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Subject: [PATCH] feat(sysconfig): Add DNS from interface config to resolv.conf
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(#5401)
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RH-Author: xiachen <xiachen@redhat.com>
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RH-MergeRequest: 139: feat(sysconfig): Add DNS from interface config to resolv.conf (#5401)
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RH-Jira: RHEL-46012
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RH-Acked-by: Ani Sinha <anisinha@redhat.com>
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RH-Acked-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
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RH-Commit: [1/1] 956cd86879b343d0e4a7c4d0261dcfad513242eb (xiachen/cloud-init)
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sysconfig renderer currently only uses global dns and search domain
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configuration in order to populate /etc/resolv.conf. This means it ignores
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interface specific dns configuration completely. This means, when global dns
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information is absent and only interface specific dns configuration is present,
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/etc/resolv.conf will not have complete dns information. Fix this so that
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per interface dns information is also taken into account along with global dns
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configuration in order to populate /etc/resolv.conf.
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Fixes: GH-5400
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Signed-off-by: Ani Sinha <anisinha@redhat.com>
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(cherry picked from commit 1b8030e0c7fd6fbff7e38ad1e3e6266ae50c83a5)
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---
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cloudinit/net/sysconfig.py | 52 +++++++++-
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tests/unittests/test_net.py | 184 +++++++++++++++++++++++++++++++++++-
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2 files changed, 230 insertions(+), 6 deletions(-)
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diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py
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index d39f4fe31..7eb430ed1 100644
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--- a/cloudinit/net/sysconfig.py
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+++ b/cloudinit/net/sysconfig.py
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@@ -825,20 +825,62 @@ class Renderer(renderer.Renderer):
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@staticmethod
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def _render_dns(network_state, existing_dns_path=None):
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- # skip writing resolv.conf if network_state doesn't include any input.
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+
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+ found_nameservers = []
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+ found_dns_search = []
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+
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+ for iface in network_state.iter_interfaces():
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+ for subnet in iface["subnets"]:
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+ # Add subnet-level DNS
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+ if "dns_nameservers" in subnet:
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+ found_nameservers.extend(subnet["dns_nameservers"])
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+ if "dns_search" in subnet:
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+ found_dns_search.extend(subnet["dns_search"])
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+
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+ # Add interface-level DNS
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+ if "dns" in iface:
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+ found_nameservers += [
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+ dns
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+ for dns in iface["dns"]["nameservers"]
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+ if dns not in found_nameservers
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+ ]
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+ found_dns_search += [
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+ search
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+ for search in iface["dns"]["search"]
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+ if search not in found_dns_search
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+ ]
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+
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+ # When both global and interface specific entries are present,
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+ # use them both to generate /etc/resolv.conf eliminating duplicate
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+ # entries. Otherwise use global or interface specific entries whichever
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+ # is provided.
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+ if network_state.dns_nameservers:
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+ found_nameservers += [
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+ nameserver
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+ for nameserver in network_state.dns_nameservers
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+ if nameserver not in found_nameservers
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+ ]
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+ if network_state.dns_searchdomains:
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+ found_dns_search += [
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+ search
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+ for search in network_state.dns_searchdomains
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+ if search not in found_dns_search
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+ ]
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+
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+ # skip writing resolv.conf if no dns information is provided in conf.
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if not any(
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[
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- len(network_state.dns_nameservers),
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- len(network_state.dns_searchdomains),
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+ len(found_nameservers),
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+ len(found_dns_search),
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]
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):
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return None
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content = resolv_conf.ResolvConf("")
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if existing_dns_path and os.path.isfile(existing_dns_path):
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content = resolv_conf.ResolvConf(util.load_file(existing_dns_path))
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- for nameserver in network_state.dns_nameservers:
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+ for nameserver in found_nameservers:
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content.add_nameserver(nameserver)
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- for searchdomain in network_state.dns_searchdomains:
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+ for searchdomain in found_dns_search:
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content.add_search_domain(searchdomain)
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header = _make_header(";")
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content_str = str(content)
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diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py
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index d7c9a4144..2d716f4b5 100644
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--- a/tests/unittests/test_net.py
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+++ b/tests/unittests/test_net.py
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@@ -516,6 +516,8 @@ OS_SAMPLES = [
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}
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],
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"ip_address": "172.19.1.34",
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+ "dns_search": ["testweb.com"],
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+ "dns_nameservers": ["172.19.0.13"],
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"id": "network0",
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}
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],
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@@ -550,7 +552,9 @@ STARTMODE=auto
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"""
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; Created by cloud-init automatically, do not edit.
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;
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+nameserver 172.19.0.13
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nameserver 172.19.0.12
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+search testweb.com
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""".lstrip(),
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),
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(
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@@ -582,6 +586,8 @@ AUTOCONNECT_PRIORITY=120
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BOOTPROTO=none
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DEFROUTE=yes
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DEVICE=eth0
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+DNS1=172.19.0.13
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+DOMAIN=testweb.com
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GATEWAY=172.19.3.254
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HWADDR=fa:16:3e:ed:9a:59
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IPADDR=172.19.1.34
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@@ -596,7 +602,174 @@ USERCTL=no
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"""
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; Created by cloud-init automatically, do not edit.
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;
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+nameserver 172.19.0.13
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nameserver 172.19.0.12
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+search testweb.com
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+""".lstrip(),
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+ ),
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+ (
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+ "etc/NetworkManager/conf.d/99-cloud-init.conf",
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+ """
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+# Created by cloud-init automatically, do not edit.
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+#
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+[main]
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+dns = none
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+""".lstrip(),
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+ ),
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+ (
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+ "etc/udev/rules.d/70-persistent-net.rules",
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+ "".join(
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+ [
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+ 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ',
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+ 'ATTR{address}=="fa:16:3e:ed:9a:59", NAME="eth0"\n',
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+ ]
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+ ),
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+ ),
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+ ],
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+ "expected_network_manager": [
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+ (
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+ "".join(
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+ [
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+ "etc/NetworkManager/system-connections",
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+ "/cloud-init-eth0.nmconnection",
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+ ]
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+ ),
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+ """
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+# Generated by cloud-init. Changes will be lost.
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+
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+[connection]
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+id=cloud-init eth0
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+uuid=1dd9a779-d327-56e1-8454-c65e2556c12c
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+autoconnect-priority=120
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+type=ethernet
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+
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+[user]
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+org.freedesktop.NetworkManager.origin=cloud-init
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+
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+[ethernet]
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+mac-address=FA:16:3E:ED:9A:59
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+
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+[ipv4]
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+method=manual
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+may-fail=false
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+address1=172.19.1.34/22
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+route1=0.0.0.0/0,172.19.3.254
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+dns=172.19.0.13;
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+dns-search=testweb.com;
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+
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+""".lstrip(),
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+ ),
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+ ],
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+ },
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+ {
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+ "in_data": {
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+ "services": [
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+ {
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+ "type": "dns",
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+ "address": "172.19.0.12",
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+ "search": ["example1.com", "example2.com"],
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+ }
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+ ],
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+ "networks": [
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+ {
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+ "network_id": "dacd568d-5be6-4786-91fe-750c374b78b4",
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+ "type": "ipv4",
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+ "netmask": "255.255.252.0",
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+ "link": "eth0",
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+ "routes": [
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+ {
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+ "netmask": "0.0.0.0",
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+ "network": "0.0.0.0",
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+ "gateway": "172.19.3.254",
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+ }
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+ ],
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+ "ip_address": "172.19.1.34",
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+ "dns_search": ["example3.com"],
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+ "dns_nameservers": ["172.19.0.12"],
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+ "id": "network0",
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+ }
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+ ],
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+ "links": [
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+ {
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+ "ethernet_mac_address": "fa:16:3e:ed:9a:59",
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+ "mtu": None,
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+ "type": "physical",
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+ "id": "eth0",
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+ },
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+ ],
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+ },
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+ "in_macs": {
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+ "fa:16:3e:ed:9a:59": "eth0",
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+ },
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+ "out_sysconfig_opensuse": [
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+ (
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+ "etc/sysconfig/network/ifcfg-eth0",
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+ """
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+# Created by cloud-init automatically, do not edit.
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+#
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+BOOTPROTO=static
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+IPADDR=172.19.1.34
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+LLADDR=fa:16:3e:ed:9a:59
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+NETMASK=255.255.252.0
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+STARTMODE=auto
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+""".lstrip(),
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+ ),
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+ (
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+ "etc/resolv.conf",
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+ """
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+; Created by cloud-init automatically, do not edit.
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+;
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+nameserver 172.19.0.12
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+search example3.com example1.com example2.com
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+""".lstrip(),
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+ ),
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+ (
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+ "etc/NetworkManager/conf.d/99-cloud-init.conf",
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+ """
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+# Created by cloud-init automatically, do not edit.
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+#
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+[main]
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+dns = none
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+""".lstrip(),
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+ ),
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+ (
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+ "etc/udev/rules.d/85-persistent-net-cloud-init.rules",
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+ "".join(
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+ [
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+ 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ',
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+ 'ATTR{address}=="fa:16:3e:ed:9a:59", NAME="eth0"\n',
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+ ]
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+ ),
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+ ),
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+ ],
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+ "out_sysconfig_rhel": [
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+ (
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+ "etc/sysconfig/network-scripts/ifcfg-eth0",
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+ """
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+# Created by cloud-init automatically, do not edit.
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+#
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+AUTOCONNECT_PRIORITY=120
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+BOOTPROTO=none
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+DEFROUTE=yes
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+DEVICE=eth0
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+DNS1=172.19.0.12
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+DOMAIN=example3.com
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+GATEWAY=172.19.3.254
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+HWADDR=fa:16:3e:ed:9a:59
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+IPADDR=172.19.1.34
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+NETMASK=255.255.252.0
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+ONBOOT=yes
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+TYPE=Ethernet
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+USERCTL=no
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+""".lstrip(),
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+ ),
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+ (
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+ "etc/resolv.conf",
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+ """
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+; Created by cloud-init automatically, do not edit.
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+;
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+nameserver 172.19.0.12
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+search example3.com example1.com example2.com
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""".lstrip(),
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),
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(
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@@ -647,6 +820,7 @@ may-fail=false
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address1=172.19.1.34/22
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route1=0.0.0.0/0,172.19.3.254
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dns=172.19.0.12;
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+dns-search=example3.com;
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""".lstrip(),
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),
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@@ -654,7 +828,13 @@ dns=172.19.0.12;
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},
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{
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"in_data": {
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- "services": [{"type": "dns", "address": "172.19.0.12"}],
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+ "services": [
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+ {
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+ "type": "dns",
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+ "address": "172.19.0.12",
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+ "search": "example.com",
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+ }
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+ ],
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"networks": [
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{
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"network_id": "public-ipv4",
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@@ -715,6 +895,7 @@ STARTMODE=auto
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; Created by cloud-init automatically, do not edit.
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;
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nameserver 172.19.0.12
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+search example.com
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""".lstrip(),
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),
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(
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@@ -763,6 +944,7 @@ USERCTL=no
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; Created by cloud-init automatically, do not edit.
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;
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nameserver 172.19.0.12
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+search example.com
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""".lstrip(),
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),
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(
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--
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2.39.3
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@ -0,0 +1,58 @@
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From 30563d06d405953a3d1f1155a4bf1140660d3b40 Mon Sep 17 00:00:00 2001
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From: Brett Holman <brett.holman@canonical.com>
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Date: Wed, 3 Jan 2024 09:11:40 -0700
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Subject: [PATCH] fix(cloudstack): Use parsed lease file for virtual router in
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cloudstack
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RH-Author: Ani Sinha <anisinha@redhat.com>
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RH-MergeRequest: 136: fix(cloudstack): Use parsed lease file for virtual router in cloudstack
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RH-Jira: RHEL-40419
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RH-Acked-by: Cathy Avery <cavery@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [1/1] b24ddecac72488e784d2c59fff7b8f9ccee45181
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Fixes 5942f4023e2581a
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(cherry picked from commit cb36bf38b823f811a3e938ccffc03d7d13190095)
|
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Signed-off-by: Ani Sinha <anisinha@redhat.com>
|
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---
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cloudinit/sources/DataSourceCloudStack.py | 22 +++++++++++-----------
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1 file changed, 11 insertions(+), 11 deletions(-)
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diff --git a/cloudinit/sources/DataSourceCloudStack.py b/cloudinit/sources/DataSourceCloudStack.py
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index fd2482a3f..f752765d3 100644
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--- a/cloudinit/sources/DataSourceCloudStack.py
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+++ b/cloudinit/sources/DataSourceCloudStack.py
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@@ -229,18 +229,18 @@ def get_vr_address():
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)
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return latest_address
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- # Try dhcp lease files next...
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+ # Try dhcp lease files next
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lease_file = dhcp.IscDhclient.get_latest_lease()
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- if not lease_file:
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- LOG.debug("No lease file found, using default gateway")
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- return get_default_gateway()
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-
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- lease_file = dhcp.IscDhclient.parse_dhcp_server_from_lease_file(lease_file)
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- if not latest_address:
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- # No virtual router found, fallback on default gateway
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- LOG.debug("No DHCP found, using default gateway")
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- return get_default_gateway()
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- return latest_address
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+ if lease_file:
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+ latest_address = dhcp.IscDhclient.parse_dhcp_server_from_lease_file(
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+ lease_file
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+ )
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+ if latest_address:
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+ return latest_address
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+
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+ # No virtual router found, fallback to default gateway
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+ LOG.debug("No DHCP found, using default gateway")
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+ return get_default_gateway()
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# Used to match classes to dependencies
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--
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2.39.3
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Loading…
Reference in new issue