run a shell command on test failure at teardown

Registered by Waldemar Znoinski on 2018-03-21

Add new option:

* run_on_failure - run a shell command on a test teardown stage (before resources are cleaned up) only in case of test failure

show results: http://znoinski.com/tempest-results-failing.28.html

This can be helpful in analysis of failures, especially in a CI
environment where pausing test suite run may be problematic.
Use with caution, especially in parallelized testing as it can consume more disk space as well testing time significantly.

Blueprint information

Status:
Started
Approver:
None
Priority:
Undefined
Drafter:
Waldemar Znoinski
Direction:
Needs approval
Assignee:
Waldemar Znoinski
Definition:
New
Series goal:
None
Implementation:
Good progress
Milestone target:
None
Started by
Waldemar Znoinski on 2018-03-21

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