yahoo-eng-team team mailing list archive

[Michal Nasiadka <1982569@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

When using neutron-dhcp-agent for Ironic/baremetal ports - DHCP injects a route to 169.254.169.254 via the routers ip.
That's incorrect, because neutron ovn metadata agent is listening on a dedicated port (network:distributed).

Example:

# ip r l
default via 10.209.0.1 dev eno1
10.209.0.0/16 dev eno1 proto kernel scope link src 10.209.3.225
169.254.169.254 via 10.209.0.1 dev eno1
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown

ping 169.254.169.254
PING 169.254.169.254 (169.254.169.254) 56(84) bytes of data.
^C
--- 169.254.169.254 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1017ms

# ip r d 169.254.169.254
# ip r a 169.254.169.254 via 10.209.0.2

# curl 169.254.169.254
1.0
2007-01-19
2007-03-01
2007-08-29
2007-10-10
2007-12-15
2008-02-01
2008-09-01
2009-04-04

OVN version: 21.12
OVS version: 2.16.0
OpenStack release: Wallaby

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: ovn

** Tags added: ovn

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https://bugs.launchpad.net/bugs/1982569

Title:
  [OVN] metadata does not work when using neutron-dhcp-agent for
  baremetal ports

Status in neutron:
  New

Bug description:
  When using neutron-dhcp-agent for Ironic/baremetal ports - DHCP injects a route to 169.254.169.254 via the routers ip.
  That's incorrect, because neutron ovn metadata agent is listening on a dedicated port (network:distributed).

  Example:

  # ip r l
  default via 10.209.0.1 dev eno1
  10.209.0.0/16 dev eno1 proto kernel scope link src 10.209.3.225
  169.254.169.254 via 10.209.0.1 dev eno1
  172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown

  ping 169.254.169.254
  PING 169.254.169.254 (169.254.169.254) 56(84) bytes of data.
  ^C
  --- 169.254.169.254 ping statistics ---
  2 packets transmitted, 0 received, 100% packet loss, time 1017ms

  # ip r d 169.254.169.254
  # ip r a 169.254.169.254 via 10.209.0.2

  # curl 169.254.169.254
  1.0
  2007-01-19
  2007-03-01
  2007-08-29
  2007-10-10
  2007-12-15
  2008-02-01
  2008-09-01
  2009-04-04

  OVN version: 21.12
  OVS version: 2.16.0
  OpenStack release: Wallaby

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