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[Akihiro Motoki <1715542@xxxxxxxxxxxxxxxxxx>]

Values which can be specified in OPENSTACK_API_VERSIONS are only values
defined in openstack_dashbaord code. In nova case, "2" is the only valid
value [1]. If other value is specified in OPENSTACK_API_VERSIONS, an
exception will be raised. I cannot understand why other values like
"2.6" can be specified in OPENSTACK_API_VERSIONS. I believe we don't
need to fix this.

[1]
https://github.com/openstack/horizon/blob/ebd5649ab409f55f75f5c8d583e2262923c89b3b/openstack_dashboard/api/nova.py#L50

** Changed in: horizon
       Status: In Progress => Invalid

** Changed in: horizon
    Milestone: rocky-1 => None

** Changed in: horizon
     Assignee: Sam Morrison (sorrison) => (unassigned)

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https://bugs.launchpad.net/bugs/1715542

Title:
  Remote console doesn't work when specifying nova API V2.6 or later in
  OPENSTACK_API_VERSIONS

Status in OpenStack Dashboard (Horizon):
  Invalid

Bug description:
  Upgraded horizon to Ocata and now remote consoles don't work.

  This is due to horizon switching to using the new server-remote-
  consoles API see:

  https://developer.openstack.org/api-ref/compute/#server-remote-
  consoles

  Also deprecation about the old way at

  https://developer.openstack.org/api-ref/compute/#get-vnc-console-os-
  getvncconsole-action-deprecated

  
  The error is masked as there is a dangerous catch all exception (removing it shows the following)

  
    File "/opt/horizon/openstack_dashboard/dashboards/project/instances/views.py", line 312, in get_context_data
      context = super(DetailView, self).get_context_data(**kwargs)
    File "/opt/horizon/horizon/tabs/views.py", line 56, in get_context_data
      exceptions.handle(self.request)
    File "/opt/horizon/horizon/exceptions.py", line 354, in handle
      six.reraise(exc_type, exc_value, exc_traceback)
    File "/opt/horizon/horizon/tabs/views.py", line 54, in get_context_data
      context["tab_group"].load_tab_data()
    File "/opt/horizon/horizon/tabs/base.py", line 128, in load_tab_data
      exceptions.handle(self.request)
    File "/opt/horizon/horizon/exceptions.py", line 354, in handle
      six.reraise(exc_type, exc_value, exc_traceback)
    File "/opt/horizon/horizon/tabs/base.py", line 125, in load_tab_data
      tab._data = tab.get_context_data(self.request)
    File "/opt/horizon/openstack_dashboard/dashboards/project/instances/tabs.py", line 74, in get_context_data
      request, console_type, instance)
    File "/opt/horizon/openstack_dashboard/dashboards/project/instances/console.py", line 53, in get_console
      console = api_call(request, instance.id)
    File "/opt/horizon/openstack_dashboard/api/nova.py", line 504, in server_vnc_console
      instance_id, console_type)['console'])
  KeyError: 'console'

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