OPNFV KVM4NFV: Documentation Enhancement

This patch contains some documentation enhancement for
more clarity on KVM4NFV project.

Change-Id: I3186d65d8d542ffd842a1a8b54289cda308056ce
Signed-off-by: Gundarapu Kalyan Reddy <reddyx.gundarapu@intel.com>
(cherry picked from commit f435810f53bffdf881b852a81546039c72a4c60d)

2 files changed, 138 insertions, 0 deletions

diff --git a/docs/scenarios/os-nosdn-kvm-ha/index.rst b/docs/scenarios/os-nosdn-kvm-ha/index.rst
new file mode 100755
index 000000000..0c89bc60f
--- /dev/null
+++ b/docs/scenarios/os-nosdn-kvm-ha/index.rst
@@ -0,0 +1,12 @@
+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+==============================
+KVMFORNFV Scenario Description
+==============================
+
+.. toctree::
+   :numbered:
+   :maxdepth: 3
+
+   os-nosdn-kvm-ha.description.rst
diff --git a/docs/scenarios/os-nosdn-kvm-ha/os-nosdn-kvm-ha.description.rst b/docs/scenarios/os-nosdn-kvm-ha/os-nosdn-kvm-ha.description.rst
new file mode 100644
index 000000000..d60276e0f
--- /dev/null
+++ b/docs/scenarios/os-nosdn-kvm-ha/os-nosdn-kvm-ha.description.rst
@@ -0,0 +1,126 @@
+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+
+.. http://creativecommons.org/licenses/by/4.0
+
+
+Introduction
+============
+
+.. In this section explain the purpose of the scenario and the
+   types of capabilities provided
+
+The purpose of os-nosdn-kvm-ha scenario testing is to test the
+High Availability deployment and configuration of OPNFV software suite
+with OpenStack and without SDN software. This OPNFV software suite
+includes OPNFV KVM4NFV latest software packages for Linux Kernel and
+QEMU patches for achieving low latency. High Availability feature is achieved
+by deploying OpenStack multi-node setup with 3 controllers and 2 computes nodes
+
+KVM4NFV packages will be installed on compute nodes as part of deployment.
+This scenario testcase deployment is happening on multi-node by using
+OPNFV Fuel deployer.
+
+Scenario Components and Composition
+===================================
+.. In this section describe the unique components that make up the scenario,
+.. what each component provides and why it has been included in order
+.. to communicate to the user the capabilities available in this scenario.
+
+This scenario deploys the High Availability OPNFV Cloud based on the
+configurations provided in ha_nfv-kvm_heat_ceilometer_scenario.yaml.
+This yaml file contains following configurations and is passed as an
+argument to deploy.py script
+
+* scenario.yaml:This configuration file defines translation between a
+  short deployment scenario name(os-nosdn-kvm-ha) and an actual deployment
+  scenario configuration file(ha_nfv-kvm_heat_ceilometer_scenario.yaml)
+
+* deployment-scenario-metadata:Contains the configuration metadata like
+  title,version,created,comment.
+
+* stack-extensions:Stack extentions are opnfv added value features in form
+  of a fuel-plugin.Plugins listed in stack extensions are enabled and
+  configured.
+
+* dea-override-config: Used to configure the HA mode,network segmentation
+  types and role to node assignments.These configurations overrides
+  corresponding keys in the dea_base.yaml and dea_pod_override.yaml.
+  These keys are used to deploy multiple nodes(3 controllers,2 computes)
+  as mention below.
+
+  * **Node 1**: This node has MongoDB and Controller roles. The controller
+    node runs the Identity service, Image Service, management portions of
+    Compute and Networking, Networking plug-in and the dashboard. The
+    Telemetry service which was designed to support billing systems for
+    OpenStack cloud resources uses a NoSQL database to store information.
+    The database typically runs on the controller node.
+
+  * **Node 2**: This node has Controller and Ceph-osd roles. Ceph is a
+    massively scalable, open source, distributed storage system. It is
+    comprised of an object store, block store and a POSIX-compliant distributed
+    file system. Enabling Ceph,  configures Nova to store ephemeral volumes in
+    RBD, configures Glance to use the Ceph RBD backend to store images,
+    configures Cinder to store volumes in Ceph RBD images and configures the
+    default number of object replicas in Ceph.
+
+  * **Node 3**: This node has Controller role in order to achieve high
+    availability.
+
+  * **Node 4**: This node has Compute role. The compute node runs the
+    hypervisor portion of Compute that operates tenant virtual machines
+    or instances. By default, Compute uses KVM as the hypervisor.
+
+  * **Node 5**: This node has compute role.
+
+* dha-override-config:Provides information about the VM definition and
+  Network config for virtual deployment.These configurations overrides
+  the pod dha definition and points to the controller,compute and
+  fuel definition files.
+
+* os-nosdn-kvm-ha scenario is successful when all the 5 Nodes are accessible,
+  up and running
+
+Scenario Usage Overview
+=======================
+.. Provide a brief overview on how to use the scenario and the features available to the
+.. user.  This should be an "introduction" to the userguide document, and explicitly link to it,
+.. where the specifics of the features are covered including examples and API's
+
+* The high availability feature can be acheived by executing deploy.py with
+  ha_nfv-kvm_heat_ceilometer_scenario.yaml as an argument.
+* Install Fuel Master and deploy OPNFV Cloud from scratch on Hardware
+  Environment:
+
+  -Example:
+
+  sudo python deploy.py -iso ~/ISO/opnfv.iso -dea ~/CONF/hardware/dea.yaml -dha ~/CONF/hardware/dha.yaml -s /mnt/images -b pxebr -log ~/Deployment-888.log.tar.gz
+
+* Install Fuel Master and deploy OPNFV Cloud from scratch on Virtual
+  Environment:
+
+  -Example:
+
+  sudo python deploy.py -iso ~/ISO/opnfv.iso -dea ~/CONF/virtual/dea.yaml -dha ~/CONF/virtual/dha.yaml -s /mnt/images -log ~/Deployment-888.log.tar.gz
+
+* os-nosdn-kvm-ha scenario can be executed from the jenkins project
+  "fuel-os-nosdn-kvm-ha-baremetal-daily-master"
+* This scenario provides the High Availability feature by deploying
+  3 controller,2 compute nodes and checking if all the 5 nodes
+  are accessible(IP,up & running).
+* Test Scenario is passed if deployment is successful and all 5 nodes have
+  accessibility (IP , up & running).
+* Observed that scenario is not running any testcase on top of deployment.
+
+Known Limitations, Issues and Workarounds
+=========================================
+.. Explain any known limitations here.
+
+* Test scenario os-nosdn-kvm-ha result is not stable. After node reboot
+  triggered by kvm plugin, sometimes puppet agent (mcollective) is not
+  responding with in the given time.
+
+References
+==========
+
+For more information on the OPNFV Colorado release, please visit
+http://www.opnfv.org/colorado