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From 010f6405288b1ca519d684d85ca25ce86de60b66 Mon Sep 17 00:00:00 2001
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From: Alexander Bokovoy <abokovoy@redhat.com>
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Date: Tue, 19 Sep 2017 12:06:39 +0300
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Subject: [PATCH] Make sure upgrade also checks for IPv6 stack
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- Add check for IPv6 stack to upgrade process
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- Change IPv6 checker to also check that localhost resolves to ::1
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Part of fixes https://pagure.io/freeipa/issue/7083
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Reviewed-By: Tomas Krizek <tkrizek@redhat.com>
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---
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ipaplatform/redhat/tasks.py | 19 ++++++++++++++++---
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ipaserver/install/server/upgrade.py | 1 +
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2 files changed, 17 insertions(+), 3 deletions(-)
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diff --git a/ipaplatform/redhat/tasks.py b/ipaplatform/redhat/tasks.py
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index 07efebab97eabcf2dc39bd345920a1c7be56e9f5..94d1863c5cc20ec6c2399f339ce19498976553bc 100644
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--- a/ipaplatform/redhat/tasks.py
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+++ b/ipaplatform/redhat/tasks.py
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@@ -153,9 +153,22 @@ class RedHatTaskNamespace(BaseTaskNamespace):
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"""
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if not os.path.exists(paths.IF_INET6):
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raise RuntimeError(
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- "IPv6 kernel module has to be enabled. If you do not wish to "
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- "use IPv6, please disable it on the interfaces in "
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- "sysctl.conf and enable the IPv6 kernel module.")
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+ "IPv6 stack has to be enabled in the kernel and some "
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+ "interface has to have ::1 address assigned. Typically "
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+ "this is 'lo' interface. If you do not wish to use IPv6 "
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+ "globally, disable it on the specific interfaces in "
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+ "sysctl.conf except 'lo' interface.")
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+
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+ try:
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+ localhost6 = ipautil.CheckedIPAddress('::1', allow_loopback=True)
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+ if localhost6.get_matching_interface() is None:
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+ raise ValueError("no interface for ::1 address found")
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+ except ValueError:
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+ raise RuntimeError(
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+ "IPv6 stack is enabled in the kernel but there is no "
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+ "interface that has ::1 address assigned. Add ::1 address "
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+ "resolution to 'lo' interface. You might need to enable IPv6 "
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+ "on the interface 'lo' in sysctl.conf.")
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def restore_pre_ipa_client_configuration(self, fstore, statestore,
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was_sssd_installed,
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diff --git a/ipaserver/install/server/upgrade.py b/ipaserver/install/server/upgrade.py
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index 0947766c076251e7608241803d3a1eabee65ae11..1c4b2357d5d016b8a7501f46380d5e0a61dc21a0 100644
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--- a/ipaserver/install/server/upgrade.py
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+++ b/ipaserver/install/server/upgrade.py
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@@ -1860,6 +1860,7 @@ def upgrade_configuration():
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def upgrade_check(options):
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try:
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installutils.check_server_configuration()
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+ tasks.check_ipv6_stack_enabled()
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except RuntimeError as e:
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root_logger.error(e)
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sys.exit(1)
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--
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2.13.5
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