Update yardstick framework architecture in userguide

JIRA: YARDSTICK-590

This patch update the yardstick framework architecture in the userguide,
also fix some rst grammar mistakes

Change-Id: I84e7c24b4cd936a01f4c191e9f530f15f9f711de
Signed-off-by: JingLu5 <lvjing5@huawei.com>
(cherry picked from commit 7150e6bc49098937edcac0fa9fa108329c74af4a)

1 files changed, 119 insertions, 0 deletions

diff --git a/docs/testing/user/userguide/07-grafana.rst b/docs/testing/user/userguide/07-grafana.rst
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+.. This work is licensed under a Creative Commons Attribution 4.0 International
+.. License.
+.. http://creativecommons.org/licenses/by/4.0
+.. (c) 2016 Huawei Technologies Co.,Ltd and others
+
+=================
+Grafana dashboard
+=================
+
+
+Abstract
+========
+
+This chapter describes the Yardstick grafana dashboard. The Yardstick grafana
+dashboard can be found here: http://testresults.opnfv.org/grafana/
+
+
+.. image:: images/login.png
+   :width: 800px
+   :alt: Yardstick grafana dashboard
+
+
+Public access
+=============
+
+Yardstick provids a public account for accessing to the dashboard. The username
+and password are both set to ‘opnfv’.
+
+
+Testcase dashboard
+==================
+
+For each test case, there is a dedicated dashboard. Shown here is the dashboard
+of TC002.
+
+
+.. image:: images/TC002.png
+   :width: 800px
+   :alt:TC002 dashboard
+
+For each test case dashboard. On the top left, we have a dashboard selection,
+you can switch to different test cases using this pull-down menu.
+
+Underneath, we have a pod and scenario selection.
+All the pods and scenarios that have ever published test data to the InfluxDB
+will be shown here.
+
+You can check multiple pods or scenarios.
+
+For each test case, we have a short description and a link to detailed test
+case information in Yardstick user guide.
+
+Underneath, it is the result presentation section.
+You can use the time period selection on the top right corner to zoom in or
+zoom out the chart.
+
+
+Administration access
+=====================
+
+For a user with administration rights it is easy to update and save any
+dashboard configuration. Saved updates immediately take effect and become live.
+This may cause issues like:
+
+- Changes and updates made to the live configuration in Grafana can compromise
+  existing Grafana content in an unwanted, unpredicted or incompatible way.
+  Grafana as such is not version controlled, there exists one single Grafana
+  configuration per dashboard.
+- There is a risk several people can disturb each other when doing updates to
+  the same Grafana dashboard at the same time.
+
+Any change made by administrator should be careful.
+
+
+Add a dashboard into yardstick grafana
+======================================
+
+Due to security concern, users that using the public opnfv account are not able
+to edit the yardstick grafana directly.It takes a few more steps for a
+non-yardstick user to add a custom dashboard into yardstick grafana.
+
+There are 6 steps to go.
+
+
+.. image:: images/add.png
+   :width: 800px
+   :alt: Add a dashboard into yardstick grafana
+
+
+1. You need to build a local influxdb and grafana, so you can do the work
+   locally. You can refer to How to deploy InfluxDB and Grafana locally wiki
+   page about how to do this.
+
+2. Once step one is done, you can fetch the existing grafana dashboard
+   configuration file from the yardstick repository and import it to your local
+   grafana. After import is done, you grafana dashboard will be ready to use
+   just like the community’s dashboard.
+
+3. The third step is running some test cases to generate test results and
+   publishing it to your local influxdb.
+
+4. Now you have some data to visualize in your dashboard. In the fourth step,
+   it is time to create your own dashboard. You can either modify an existing
+   dashboard or try to create a new one from scratch. If you choose to modify
+   an existing dashboard then in the curtain menu of the existing dashboard do
+   a "Save As..." into a new dashboard copy instance, and then continue doing
+   all updates and saves within the dashboard copy.
+
+5. When finished with all Grafana configuration changes in this temporary
+   dashboard then chose "export" of the updated dashboard copy into a JSON file
+   and put it up for review in Gerrit, in file /yardstick/dashboard/Yardstick-TCxxx-yyyyyyyyyyyyy.
+   For instance a typical default name of the file would be "Yardstick-TC001 Copy-1234567891234".
+
+6. Once you finish your dashboard, the next step is exporting the configuration
+   file and propose a patch into Yardstick. Yardstick team will review and
+   merge it into Yardstick repository. After approved review Yardstick team
+   will do an "import" of the JSON file and also a "save dashboard" as soon as
+   possible to replace the old live dashboard configuration.
+