Overview
--------

OpenContrail (www.opencontrail.org) is a fully featured Software Defined
Networking (SDN) solution for private clouds. It supports high performance
isolated tenant networks without requiring external hardware support. It
provides a Neutron plugin to integrate with OpenStack.

This charm provides the analytics node component which includes
contrail-collector, contrail-query-engine and contrail-analytics-api services.

Only OpenStack Mitaka or newer is supported.
Only for Contrail 4.0 for now.
Juju 2.0 is required.

Usage
-----

Contrail Controller and Contrail AnalyticsDB are prerequisite services to deploy.
Once ready, deploy and relate as follows:

    juju deploy contrail-analytics
    juju add-relation contrail-analytics contrail-analyticsdb
    juju add-relation contrail-analytics contrail-controller

Resource
--------

The charm requires docker image with Contrail Analytics as a resource.
It can be provided as usual for Juju 2.0 in deploy command or
through attach-resource:

    juju attach contrail-analytics contrail-analytics="$PATH_TO_IMAGE"

High Availability (HA)
----------------------

Multiple units of this charm can be deployed to support HA deployments:

    juju add-unit contrail-analytics

Relating to haproxy charm (http-services relation) allows multiple units to be
load balanced:

    juju add-relation contrail-analytics haproxy