Add ui automation spec

Change-Id: I3531873ddf6db2f30a4eeaf73aeea84df8e1f66d
Implements: blueprint automated-ui-testing

specs/rocky/ui-automation-testing.rst

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+..
+ This work is licensed under a Creative Commons Attribution 3.0 Unported
+ License.
+
+ http://creativecommons.org/licenses/by/3.0/legalcode
+
+==========================================
+UI Automation Testing
+==========================================
+
+https://blueprints.launchpad.net/tripleo/+spec/automated-ui-testing
+
+We would like to introduce a suite of automated integration tests for the
+TripleO UI.  This will prevent regressions, and will lead to more stable
+software.
+
+Problem Description
+===================
+
+At the moment, upstream CI only tests for lint errors, and runs our unit tests.
+We'd like to add more integration tests for tripleo-ui to the CI pipeline.  This
+will include a selenium-based approach.  This allows us to simulate a browser by
+using a headless browser when running in CI, and we can detect a lot more
+problems than we ever could with just unit testing.
+
+Proposed Change
+===============
+
+Overview
+--------
+
+We would like write a Tempest plugin for tripleo-ui which uses Selenium to drive
+a headless browser to execute the tests.  We chose Tempest because it's a
+standard in OpenStack, and gives us nice error reporting.
+
+We already have the `tempest-tripleo-ui`_ project set up.
+
+We plan to write a CI job to run our code in Tempest.  In the initial
+implementation, this will only cover checking for presence of certain UI
+elements, and no deployments will actually be run.
+
+Alternatives
+------------
+
+The alternative is that we do all of our testing manually, waste time, have
+lower velocity, and have more bugs.
+
+Security Impact
+---------------
+
+The security impact of this is minimal as it's CI-specific, and not user-facing.
+
+Other End User Impact
+---------------------
+
+End users won't interact with this feature.
+
+Performance Impact
+------------------
+
+This feature will only consume CI resources.  There should be no negative
+resource impact on the End User.
+
+Other Deployer Impact
+---------------------
+
+Our goal is to produce software that is more stable.  But we're not changing any
+features, per se.
+
+Developer Impact
+----------------
+
+Developers will gain a higher degree of confidence in their software.
+
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+  hpokorny
+
+Other contributors:
+  ukalifon
+  akrivoka
+
+Work Items
+----------
+
+* Write Selenium tests
+* Write Tempest plugin code to run Selenium tests
+* Write a new openstack-infra job to run the Tempest plugin on ``check`` and
+  ``gate``.  At first, this will be a simple sanity job to make sure that the UI
+  has been rendered.  The CI job won't run a deployment.
+
+Dependencies
+============
+
+* Tempest
+* Selenium
+
+Testing
+=======
+
+This is a bit meta.
+
+Documentation Impact
+====================
+
+We will document how a developer who is new to the tripleo-ui project can get
+started with writing new integration tests.
+
+References
+==========
+
+.. _tempest-tripleo-ui: https://github.com/openstack/tempest-tripleo-ui
+
+openstack-dev mailing list discussion:
+
+* http://lists.openstack.org/pipermail/openstack-dev/2017-June/119185.html
+* http://lists.openstack.org/pipermail/openstack-dev/2017-July/119261.html