[upstream] Generalize Jenkins slides to Zuul

During review of the upstream training slides is was decided
that the existing detailed overview of Jenkins was not as
helpful.  We decided to generalize the topic a bit to talk
about Zuul and the different types of gates.

This patch removes the old content and renames the slides
accordingly.  The content now introduces status.openstack.org ,
explains Zuul and the different pipelines.  Talks about how to
find logs and investigate elastic-recheck failures.  As with
other updates things have are more exercise focused.

Change-Id: If527a57ee3874aa0168d08f093937970f90b1d10

doc/upstream-training/source/slides/intro-introduction.rst

@@ -51,7 +51,7 @@ Agenda - Day 2, morning
   - Gerrit
   - Reviewing
   - Commit Messages
-  - Jenkins
+  - Project Status and Zuul
   - Metrics
   - UC/WG intro
 

doc/upstream-training/source/slides/slide-index.rst

@@ -40,7 +40,7 @@ Workflow and Tools for Participation
    workflow-gerrit.rst
    workflow-reviewing.rst
    workflow-commit-message.rst
-   workflow-jenkins.rst
+   workflow-project-status-and-zuul.rst
    workflow-metrics.rst
    workflow-setup-and-first-patch.rst
    workflow-using-sandbox.rst

doc/upstream-training/source/slides/workflow-jenkins.rst

@@ -1,38 +0,0 @@
-=======
-Jenkins
-=======
-
-.. image:: ./_assets/os_background.png
-   :class: fill
-   :width: 100%
-
-Triggered on every commit
-=========================
-
-.. image:: ./_assets/18-01-triggered.png
-
-Review in gerrit
-================
-
-.. image:: ./_assets/18-02-review.png
-
-Error report
-============
-
-.. image:: ./_assets/18-03-error-report.png
-
-False errors
-============
-
-.. image:: ./_assets/18-04-false-errors.png
-
-Recheck bug #XXX
-================
-
-.. image:: ./_assets/18-05-recheck.png
-  :width: 85%
-
-Exercise
-========
-
-add an error and match it to the jenkins message

doc/upstream-training/source/slides/workflow-project-status-and-zuul.rst

@@ -0,0 +1,91 @@
+=================================
+OpenStack Project Status and Zuul
+=================================
+
+.. image:: ./_assets/os_background.png
+   :class: fill
+   :width: 100%
+
+OpenStack Infrastructure and Project Status
+===========================================
+- `http://status.openstack.org <http://status.openstack.org>`_
+
+  - Zuul
+  - Rechecks
+  - Reviews
+  - Bugday
+  - OpenStack-Health
+
+.. note::
+
+  - Zuul is the project gating and automation system that tests and merges
+    changes as well as publishing releases and documentation.
+  - Rechecks has a list of bugs and associated information for
+    nondeterministic check/gate failures.
+  - Reviews has a list of important reviews based on blueprint and bug priority
+    organized by project.
+  - Bugday shows real-time stats during bug smash days.
+  - OpenStack-Health has a dashboard of overal OpenStack test results.
+
+Zuul
+====
+
+.. image:: ./_assets/workflow-project-status-and-zuul-zuul-page.png
+
+Zuul Pipelines
+==============
+- Check
+
+  - Run against all newly updated patch sets
+  - Jenkins votes +1/-1 depending on test results
+
+- Gate
+
+  - Only run after a patch is approved by a core reviewer
+  - More extensive testing than check pipeline
+  - 'Gates' code entering the stable or master branches
+
+- Post
+
+  - Jobs run against a patch after it merges
+
+Exercise
+========
+- Look at the `Zuul <http://status.openstack.org/zuul>`_ status page
+
+  - Find the information that can be retrieved for each patch in a pipeline
+
+    - What happens if you click on a patch under test
+
+  - How many gate and check jobs are running
+  - Pick your favorite project and report how many jobs it has running in IRC
+  - What is the significance of the dots, lines and colors
+
+- Discuss your findings with your group
+
+Jenkins Failures
+================
+
+.. image:: ./_assets/workflow-project-status-and-zuul-jenkins-fail.png
+
+- Logs may be accessed by clicking on the test's name
+
+Log Output
+==========
+
+.. image:: ./_assets/workflow-project-status-and-zuul-failure-log.png
+
+Intermittent Failures
+=====================
+- Caused by timing/connectivity issues in check/gate
+- May receive elastic recheck message
+- List of `Rechecks <http://status.openstack.org/elastic-recheck>`_
+- To trigger a re-run of check or gate add a comment to the patch
+  in the form of 'recheck bug XXXXX'
+
+Exercise
+========
+- Find how rechecks are categorized
+- Discuss with your table how you would determine you encountered
+  one of these bugs
+

doc/upstream-training/source/website/index.rst

@@ -149,7 +149,7 @@ Workflow and Tools for Participation
 * `Gerrit <workflow-gerrit.html>`_
 * `Reviewing <workflow-reviewing.html>`_
 * `Commit Messages <workflow-commit-message.html>`_
-* `Jenkins <workflow-jenkins.html>`_
+* `Project Status and Zuul <workflow-project-status-and-zuul.html>`_
 * `Metrics <workflow-metrics.html>`_
 * `Guide to SetUp and Push First Patch
   <workflow-setup-and-first-patch.html>`_