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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1384577

Title:
  ipxe doesn't support dnsmasq

Status in OpenStack Bare Metal Provisioning Service (Ironic):
  Fix Released
Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  The workflow of ipxe in ironic now only support ISC dhcpd.
  I use dnsmasq and follow the install-guide:
  https://github.com/openstack/ironic/blob/master/doc/source/deploy/install-guide.rst#ipxe-setup
  but failed to get undionly.kpxe

  I find the issue is from the option '!175,bootfile-name' in:
  https://github.com/openstack/ironic/blob/master/ironic/common/pxe_utils.py
  which is not recognized by dnsmasq 

  There are two things to do:
  1. add dhcp-match=set:ipxe,175
  2. add tag:!ipxe,option:bootfile-name,undionly.kpxe as a new option

  For 1, we just need to modify the dhcp_agent.ini
  for 2, we need to enable neutron add our new extra_tag after the old tag of port_id.

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