[Bug 1730618] Re: default timeout is missed in requests session which may hung forever

[Vasyl Saienko]

ironicclient also affected, any api request may hung forever when API is not available
$ date; ironic --ironic-url http://5.2.3.4 node-list
Wed Nov 15 09:14:00 UTC 2017
The "ironic" CLI is deprecated and will be removed in the S* release. Please use the "openstack baremetal" CLI instead.
^C... terminating ironic client
$ date
Wed Nov 15 09:15:50 UTC 2017
$ 

** Also affects: python-ironicclient (Ubuntu)
   Importance: Undecided
       Status: New

** No longer affects: python-ironicclient (Ubuntu)

** Also affects: python-ironicclient
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1730618

Title:
  default timeout is missed in requests session which may hung forever

Status in Ironic:
  Triaged
Status in ironic-python-agent:
  In Progress
Status in python-ironicclient:
  New

Bug description:
  We should specify default timeout to each request session because if
  timeout is not set, request may hung, as it is not limited in time by
  default http://docs.python-
  requests.org/en/master/user/quickstart/#timeouts

  One of examples is https://github.com/openstack/ironic-python-
  agent/blob/fd7f10b993ef5262e76d604b38cfad25aed2266d/ironic_python_agent/ironic_api_client.py#L64

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