From b85814d5683c7f8a1e1b5f3570bcce0a8f76137b Mon Sep 17 00:00:00 2001 From: Mohammed Gamal 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 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 RH-Acked-by: Miroslav Rezanina 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 --- 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