Unable to access VM thru horizon dashboard console after patching.

Solution In Progress - Updated -

Issue

  • After patching, system is now not able to start openstack-nova-novncproxy.service on the controller running horizon dashboard. This prevents connecting to VM thru horizon dashboard console.

  • When trying to start the novnceproxy service, the following error is seen:

   TypeError: __init__() got an unexpected keyword argument 'no_parent'
  • It looks like this is related to python-websockify package error based on redhat bugzilla.(1220081)
    https://bugzilla.redhat.com/show_bug.cgi?id=1220081

Environment

  • Red Hat OpenStack 5.0 on RHEL 7

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