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[Michael Johnson <johnsomor@xxxxxxxxx>]

** Project changed: neutron => octavia

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https://bugs.launchpad.net/bugs/1635449

Title:
  Too many pools created from heat template when both listeners and
  pools depend on a item

Status in octavia:
  Triaged

Bug description:
  When you deploy a heat template that has both listeners and pools
  depending on a item, due to the order of locking, you may get
  additional pools created erroneously.

  Excerpt of heat template showing the issue :

  ##### LOADBALANCERS #####

    test-loadbalancer:
      type: OS::Neutron::LBaaS::LoadBalancer
      properties:
        name: test
        description: test
        vip_subnet: { get_param: subnet }

  ##### LISTENERS #####

    http-listener:
      type: OS::Neutron::LBaaS::Listener
      depends_on: test-loadbalancer
      properties:
        name: listener1
        description: listener1
        protocol_port: 80
        loadbalancer: { get_resource: test-loadbalancer } 
        protocol: HTTP

    https-listener:
      type: OS::Neutron::LBaaS::Listener
      depends_on: http-listener
      properties:
        name: listener2
        description: listener2
        protocol_port: 443
        loadbalancer: { get_resource: test-loadbalancer }
        protocol: TERMINATED_HTTPS
        default_tls_container_ref: '<tls container>'

  ##### POOLS #####

    http-pool:
      type: OS::Neutron::LBaaS::Pool
      depends_on: http-listener
      properties:
        name: pool1
        description: pool1
        lb_algorithm: 'ROUND_ROBIN'
        listener: { get_resource: http-listener }
        protocol: HTTP

    https-pool:
      type: OS::Neutron::LBaaS::Pool
      depends_on: https-listener
      properties:
        name: pool2
        description: pool2
        lb_algorithm: 'ROUND_ROBIN'
        listener: { get_resource: https-listener }
        protocol: HTTP

  After the http-listener is created, both a pool and another listener
  attempt to create but we end up with a number of pools (not always the
  same number).

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