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From 3bc94c896f660e7932d732988f16dc2916fcc1d6 Mon Sep 17 00:00:00 2001
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From: Mohammed Gamal <mgamal@redhat.com>
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Date: Fri, 29 Jul 2022 13:07:13 +0200
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Subject: [PATCH] redhat: Use NetworkManager to set DHCP hostnames on recent
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RHEL distros
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RH-Author: Mohamed Gamal Morsy <mmorsy@redhat.com>
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RH-MergeRequest: 13: redhat: Use NetworkManager to set DHCP hostnames on recent RHEL distros
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RH-Bugzilla: 2133446
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [1/1] 673e76149dd1f2fb4e23823844ed294fdbbecb1a
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2133446
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Recent versions of RHEL 8 and RHEL 9 started using NetworkManager to configure
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network intefaces instead of sysconfig files. Configurations are no longer
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stored in /etc/sysconfig/ifcfg-{interface}.
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Fix this for setting DHCP hostnames in those RHEL versions.
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Signed-off-by: Mohammed Gamal <mgamal@redhat.com>
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---
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azurelinuxagent/common/osutil/redhat.py | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/azurelinuxagent/common/osutil/redhat.py b/azurelinuxagent/common/osutil/redhat.py
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index 5c397ae8..7dd36add 100644
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--- a/azurelinuxagent/common/osutil/redhat.py
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+++ b/azurelinuxagent/common/osutil/redhat.py
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@@ -158,3 +158,15 @@ class RedhatOSUtil(Redhat6xOSUtil):
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time.sleep(wait)
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else:
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logger.warn("exceeded restart retries")
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+
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+ def set_dhcp_hostname(self, hostname):
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+ """
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+ Recent RHEL distributions use network manager instead of sysconfig files
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+ to configure network interfaces
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+ """
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+ ifname = self.get_if_name()
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+
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+ return_code = shellutil.run("nmcli device modify {0} ipv4.dhcp-hostname {1} ipv6.dhcp-hostname {1}".format(ifname, hostname))
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+
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+ if return_code != 0:
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+ logger.error("failed to set DHCP hostname for interface {0}: return code {1}".format(ifname, return_code))
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--
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2.37.3
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