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[OpenStack Infra <1535707@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/290470
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=da00d1a186c55c91887c9546e893f6d075a2c2ad
Submitter: Jenkins
Branch:    master

commit da00d1a186c55c91887c9546e893f6d075a2c2ad
Author: Andreas Scheuring <andreas.scheuring@xxxxxxxxxx>
Date:   Wed Mar 9 13:56:22 2016 +0100

    l3: Send notify on router_create when ext gw is specified
    
    A router that got created with an external gateway specified now
    triggers a notfiy_router_updated event. This triggers scheduling
    of the router and creation of the network namespace on the target
    node.
    
    Change-Id: I7f6ff5edf6a9c5ffa6d8978c1f3de0e106b6a8bb
    Closes-Bug: #1535707


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1535707

Title:
  Create router with external network attached doesn't notify l3 agent

Status in OpenStack Dashboard (Horizon):
  Fix Released
Status in neutron:
  Fix Released

Bug description:
  Description of problem:
  ======================
  When creating a router with an external network attached, the q-l3 agent does not get triggered.

  Steps to Reproduce via GUI:
  ==========================
  1. Go to Project-> Network -> Routers
  2. Click Create Router
  3. Input name, Admin state UP and select an External Network from the list

  Steps to Reproduce via CLI:
  # neutron router-create router4 --external_gateway_info type=dict network_id=<ext-network-id>

  Actual results:
  ==============
  Router gets created but no router namespace gets created on the controller. The q-l3 is not getting triggered.

  There's no entry in the "routerl3agentbindings" table
  mysql: select * from routerl3agentbindings

  Deleting the port from the router using neutron port-delete results in a DB error 
  "DBError: (IntegrityError) (1451, 'Cannot delete or update a pare
  nt row: a foreign key constraint fails (`neutron`.`routers`, CONSTRAINT `routers_ibfk_1` FOREIGN KEY (`gw_port_id`) REFERENC
  ES `ports` (`id`))') 'DELETE FROM ports WHERE ports.id = %s' ('76573418-f9ff-4f2d-8ffb-d0a200f7f1ea',)"

  --> More details see duplicate bug!

  
  Expected results:
  =================
  Router namespace gets created on the controller with an IP assigned from the selected external network.

  The l3 agent get's triggered

  Deletion of the port should fail with
  "Port cd885903-ca26-445e-848b-a65dc4a0811c cannot be deleted directly via the port API: has device owner network:router_gateway."

  Additional info:
  ===============
  If I don't select the external network in the Create Router form when I create it and attach it to the external network afterwards by using the set gateway button then everything is ok.

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