ssh_shell_prologue causing netcat/nc to fail

[alex kang]

RemoteClient def exec_command() using CONF.validation.ssh_shell_prologue to set trap to capture error/exception.
However it causes netcat/nc to fail.

It is better for def exec_command() to allow user to skip adding prologue programmatically.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/262571

[Jordan Pittier (jordan-pittier)]

Can you provide a link to a Gate failure ? How come we didn't see this before ?

[alex kang (akang)]

The failure is on load-balance v1 testing which is neutron advanced service and not in tempest repo any more.

The exec_command() is used to call the load-balancer server to start up its http service using the netcat/nc program.
with the prologue (set -o pipefail), the first http request will be accepted, but failed at subsequence calls.
Since only the first call PASS, the tests failed as the load balancer not able to process any call.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/284546

[OpenStack Infra (hudson-openstack)]

Change abandoned by Alex Kang (<email address hidden>) on branch: master
Review: https://review.openstack.org/284546
Reason: should be Change-Id: 262571

[OpenStack Infra (hudson-openstack)]

Change abandoned by Alex Kang (<email address hidden>) on branch: master
Review: https://review.openstack.org/262571
Reason: not worth the process

[Launchpad Janitor (janitor)]

[Expired for tempest because there has been no activity for 60 days.]