##Introduction
Easily provision a multi-workload cluster running Cassandra and Spark with Opscenter using Ansible with Vagrant & Virtualbox.
Disclaimer : I use this for demo purposes only, on a machine with 16gb ram, I wouldn't run this with any less.
##Prerequisites
##Provisioning
Clone the project: git clone https://github.com/joeljacobson/cassandra-multi-dc.git
In the project directory enter: vagrant up
Your cluster will be ready shortly depending on your internet connection. The initial boot takes some time as Ansible has to download, install and configure DSE across each VM. Subsequent reboots are fast.
DSE and Opscenter will be automatically configured and started once installed. They will also be automatically started each time the VMs are booted.
Cassandra will be running on: 192.168.56.10, 192.168.56.20, 192.168.56.30
Spark will be running on 192.168.56.40, 192.168.56.50, 192.168.56.60
Opscenter will be running on: 192.168.56.70:8888
Spark UI: 192.168.56.40:7081
Install the datastax-agents by entering vagrant for both the username and password.
SSH into a node with: vagrant ssh <node$>
Shutdown the VMs: vagrant halt
Resume VMs: vagrant up
Destroy the VMs (requires re-provisioning): vagrant destroy