Basic Environment - Vagrant + Puppet + HAProxy

Components:

• Two VMs that act as Web servers and run Nginx
• The web servers serve a simple page that prints "Hello World!"
• Third VM acts as a load balancer for the web servers VMs
• HAProxy is used as Load balancer

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Requirements:

• CentOS 6.x as Linux Distribution
• Puppet as provisioner (see link below)
• Puppet version 3 and up compatible recipes
• HAproxy configured using HAProxy puppet module (see link below)
• HAProxy balances requests between the web servers
• HAProxy should be able to fail-over in-case one of the web servers goes down.
• HAProxy must be accessible from outside the LAB. For example, surfing to http://<HAPROXY-IP> should work

The end result should be similar to the following diagram:

                           VM2 (Web server)
                             +---------+
                 +-------->  |  Nginx  |
   VM1 (LB)      |           +---------+
+------------+   |
|  HAProxy   +---+
+------------+   |         VM3 (Web server)
                 |           +---------+
                 +-------->  |  Nginx  |
                             +---------+

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Tools used

• HAProxy
• Nginx
• Puppet
• Vagrant
• Virtualbox

References

• Puppet Docs
• Puppet HAProxy module
• Vagrant with Puppet provisioner

Dependencies

• vagrant plugin install vagrant-hosts,
• puppet module install puppetlabs-haproxy,
• puppet module install jfryman-nginx,