dcae r4 doc updates4.0.0-ONAP

Change-Id: I341f10a9eace4facac5aec3a3ff56cb89ef005e8
Signed-off-by: VENKATESH KUMAR <vv770d@att.com>
Issue-ID: DCAEGEN2-1505
Signed-off-by: VENKATESH KUMAR <vv770d@att.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/docs/sections/services/tca-cdap/index.rst b/docs/sections/services/tca-cdap/index.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
+
+=================================
+Threshold Crossing Analytics (TCA)
+=================================
+
+
+.. contents::
+    :depth: 3
+..
+
+Overview
+========
+
+The TCA (cdap-tca-hi-lo) app was first delivered as part of ONAP R0.  In that release, it was intended to be an application that established a software architecture for building CDAP applications that demonstrate sufficient unit test coverage and reusable libraries for ingesting DMaaP MR feeds formatted according to the VES standard.  Functionally, it performs a  comparison of an incoming performance metric(s) against both a high and low threshold defined and generates CL events when threshold are exceeded.
+
+In Amsterdam release, TCA was deployed into 7 node CDAP cluster. However since Beijin release as ONAP required application to be containerized and deployable into K8s, a wrapper TCA CDAP container was built using CDAP SDK base image on which TCA application is deployed.
+
+
+
+.. toctree::
+   :maxdepth: 1
+
+   ./installation
+   ./functionality
+   ./development_info