[Bug 1681758] Re: nova-lxd driver does not work with neutron firewall disabled

[James Page]

neutron ml2/ovs configuration on compute unit:

[ovs]
enable_tunneling = True
local_ip = X.X.X.X
bridge_mappings = physnet1:br-data

[agent]
tunnel_types = gre,vxlan
l2_population = True
enable_distributed_routing = False
prevent_arp_spoofing = False

[securitygroup]
enable_security_group = False

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https://bugs.launchpad.net/bugs/1681758

Title:
  nova-lxd driver does not work with neutron firewall disabled

Status in OpenStack Charm Test Infra:
  New
Status in Ubuntu Cloud Archive:
  Triaged
Status in nova-lxd:
  Triaged
Status in nova-lxd package in Ubuntu:
  Triaged

Bug description:
  In a deployment where the firewall is disabled in the neutron-
  openvswitch-agent (don't ask); the agent switches to using non-hybrid
  ports (no bridge required to apply security group rules).

  In this configuration, neutron will expect the tap device to have been
  plugged directly into the br-int bridge prior to attempting networking
  binding; however the nova-lxd driver does not do this, so binding
  fails and instance launch errors after the network binding event times
  out.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: python-nova-lxd 15.0.0-0ubuntu1~cloud0 [modified: usr/lib/python2.7/dist-packages/nova/virt/lxd/driver.py usr/lib/python2.7/dist-packages/nova/virt/lxd/storage.py] [origin: Canonical]
  ProcVersionSignature: Ubuntu 4.4.0-72.93-generic 4.4.49
  Uname: Linux 4.4.0-72-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  CrashDB:
   {
                  "impl": "launchpad",
                  "project": "cloud-archive",
                  "bug_pattern_url": "http://people.canonical.com/~ubuntu-archive/bugpatterns/bugpatterns.xml",
               }
  Date: Tue Apr 11 10:11:15 2017
  PackageArchitecture: all
  ProcEnviron:
   TERM=screen-256color-bce
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: nova-lxd
  UpgradeStatus: No upgrade log present (probably fresh install)

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