Comment 24 for bug 1751842

shade.exc.OpenStackCloudException: Image creation failed: Error finding address for http://10.244.40.85:9292/v2/images/2c1e2ceb-3142-46f8-93ac-ea0eac00509b/file: Unable to establish connection to http://10.244.40.85:9292/v2/images/2c1e2ceb-3142-46f8-93ac-ea0eac00509b/file

I'm not sure you are pushing anything - that's a 'Unable to establish connection' error; haproxy won't terminate a connection if client and server are activity communicating - the timeouts relate to periods of inactivity I think - i.e. the server taking along time to respond to the client or vica versa.