Architecture

The Sahara architecture consists of several components:

• Cluster Configuration Manager - all the business logic resides here
• Auth component - responsible for client authentication & authorization
• DAL - Data Access Layer, persists internal models in DB
• VM Provisioning - component responsible for communication with Nova and Glance
• Deployment Engine - pluggable mechanism responsible for deploying Hadoop on provisioned VMs; existing management solutions like Apache Ambari and Cloudera Management Console could be utilized for that matter
• REST API - exposes Sahara functionality via REST
• Python Sahara Client - similar to other OpenStack components Sahara has its own python client
• Sahara pages - GUI for the Sahara is located on Horizon