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From b85814d5683c7f8a1e1b5f3570bcce0a8f76137b Mon Sep 17 00:00:00 2001
From: Mohammed Gamal <mgamal@redhat.com>
Date: Fri, 29 Jul 2022 13:07:13 +0200
Subject: [PATCH 1/2] redhat: Use NetworkManager to set DHCP hostnames on
recent RHEL distros
RH-Author: Mohamed Gamal Morsy <mmorsy@redhat.com>
RH-MergeRequest: 3: redhat: Use NetworkManager to set DHCP hostnames on recent RHEL distros
RH-Commit: [1/1] 2bf51293796ba0e8567e436836adc0547f062b04
RH-Bugzilla: 2114830
RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2114830
Recent versions of RHEL 8 and RHEL 9 started using NetworkManager to configure
network intefaces instead of sysconfig files. Configurations are no longer
stored in /etc/sysconfig/ifcfg-{interface}.
Fix this for setting DHCP hostnames in those RHEL versions.
Signed-off-by: Mohammed Gamal <mgamal@redhat.com>
---
azurelinuxagent/common/osutil/redhat.py | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/azurelinuxagent/common/osutil/redhat.py b/azurelinuxagent/common/osutil/redhat.py
index 5c397ae8..7dd36add 100644
--- a/azurelinuxagent/common/osutil/redhat.py
+++ b/azurelinuxagent/common/osutil/redhat.py
@@ -158,3 +158,15 @@ class RedhatOSUtil(Redhat6xOSUtil):
time.sleep(wait)
else:
logger.warn("exceeded restart retries")
+
+ def set_dhcp_hostname(self, hostname):
+ """
+ Recent RHEL distributions use network manager instead of sysconfig files
+ to configure network interfaces
+ """
+ ifname = self.get_if_name()
+
+ return_code = shellutil.run("nmcli device modify {0} ipv4.dhcp-hostname {1} ipv6.dhcp-hostname {1}".format(ifname, hostname))
+
+ if return_code != 0:
+ logger.error("failed to set DHCP hostname for interface {0}: return code {1}".format(ifname, return_code))
--
2.31.1
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