Cassandra-Cluster-Bootstrap

Ansible Bootstrap for Cassandra Cluster

Executive summary

This repository provides the ansible scripts to set up a Datastax Cassandra cluster on CentOS servers. Included: Datastax-Opscenter monitoring Not Included: SSL, security, encryption

The destination servers have to be setted in inventory file ./inventory.ini

Requirements

Servers

• CentOS 7.x
• Internet gateway

Ansible gateway

• ansible >= 1.9
• vagrant >= 1.8 (for demo purpose)

Demo exemple

This repository provides scripts to instanciate a 3-nodes virtualized cluster which runs on 192.168.33.0/24 network.

1. Instanciate the VMs: vagrant up
2. Provision the cassandra cluster: ansible-playbook -i inventory.ini init_cassandra_cluster.yml
3. Access to cassandra nodes: ssh ansible@192.168.33.3[1-3]
4. Destroy the cluster: vangrant destroy

Access Opscenter via :

• http://192.168.33.31:8888
• admin:admin

Getting started

To run the cluster initialization scripts on your own machines you have to set up a custom inventory file as follow :

[all:vars]
rack=rack1


[cassandra]
hostname-1 ansible_ssh_host=<IP> ansible_connection=ssh datacenter=<DCName> interface_name=<Network_interface>
hostname-2 ...