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redhat: Use NetworkManager to set DHCP hostnames on recent RHEL distros #3151

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redhat: Use NetworkManager to set DHCP hostnames on recent RHEL distros #3151

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13 changes: 13 additions & 0 deletions azurelinuxagent/common/osutil/redhat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -266,6 +266,19 @@ def check_and_recover_nic_state(self, ifname):
# TODO: Implement and test a way to recover the network interface for RedhatOSModernUtil
pass


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))

def publish_hostname(self, hostname, recover_nic=False):
# RedhatOSUtil was updated to conditionally run NetworkManager restart in response to a race condition between
# NetworkManager restart and the agent restarting the network interface during publish_hostname. Keeping the
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