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[Eric Windisch <eric@xxxxxxxxxxx>]

** Also affects: nova-docker
   Importance: Undecided
       Status: New

** Changed in: nova
       Status: Confirmed => Invalid

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https://bugs.launchpad.net/bugs/1249104

Title:
  nova docker - can't deploy multiple instances

Status in OpenStack Compute (Nova):
  Invalid
Status in Nova Docker Driver:
  New

Bug description:
  Using docker 0.6.6 + devstack

  The docker virt driver does not appear to support multiple instances
  on a single boot call. For example a call like this (notice the --num-
  instances param):

  nova boot --image f4034eef-cac6-4059-b3f1-c3b080bc70e4 --flavor 84
  --num-instances 5 cent

  Will produce errors like this in the n-cpu log

  7/dist-packages/amqp/channel.py:71 [-] Channel open from (pid=28464)
  _open_ok /usr/local/lib/python2.7/dist-packages/amqp/channel.py:429R
  nova.compute.manager [req-237556e8-b961-45dd-a4e2-1aab217067e3 admin
  demo] [instance: 68ab99a6-6b90-45a8-8e28-79827ae78165] Error: Cannot
  setup network: Cannot find any PID under container
  "e9b3773625a0adf022b4800ad8f253c47a385f8954cb7573f1eaa7a87981df11"6-6b90-45a8-8e28-79827ae78165]
  File "/opt/stack/nova/nova/compute/manager.py", line 1030, in
  _build_instance6b90-45a8-8e28-79827ae78165]
  set_access_ip=set_access_ip)TRACE nova.compute.manager [instance:
  68ab99a6-6b90-45a8-8e28-79827ae78165]   File
  "/opt/stack/nova/nova/compute/manager.py", line 1439, in
  _spawn68ab99a6-6b90-45a8-8e28-79827ae78165]
  LOG.exception(_('Instance failed to spawn'), instance=instance)e:
  68ab99a6-6b90-45a8-8e28-79827ae78165]   File
  "/opt/stack/nova/nova/compute/manager.py", line 1436, in
  _spawn68ab99a6-6b90-45a8-8e28-79827ae78165]
  block_device_info)38:58.883 TRACE nova.compute.manager [instance:
  68ab99a6-6b90-45a8-8e28-79827ae78165]   File
  "/opt/stack/nova/nova/virt/docker/driver.py", line 317, in
  spawn8ab99a6-6b90-45a8-8e28-79827ae78165]
  instance_id=instance['name'])RACE nova.compute.manager [instance:
  68ab99a6-6b90-45a8-8e28-79827ae78165] InstanceDeployFailure: Cannot
  setup network: Cannot find any PID under container
  "e9b3773625a0adf022b4800ad8f253c47a385f8954cb7573f1eaa7a87981df11"

  To reproduce:
  - push a docker image into glance
  - use nova boot with --num-instances param with a num greater than one
  - watch the vm boot fail
  - check the n-cpu.log for errors

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