Vagrant-Puppet

This is a Vragant based test environment for Puppet.

To use it, please run vagrant up

It brings up:

• A puppet master
• A puppetDB (with puppet board)
• An nginx load-balancer
• A few back-end apache2 web servers

Provisioning

After the virtual machine start up, it runs a script that :

• Append the hostfile a few hostname keys to enable master-agent communication
• Install puppet
• Copy the configuration tree at the root /
• Run the puppet agent

On the puppet master, an other script is ran. It does the same thing, plus :

• Install the puppet server
• Download all the modules

Testing

After running a vagrant up, run echo "127.0.0.1 appli" >> /etc/hosts. You will then be able to access http://appli:8080/ and reach your back-ends through the nginx load-balancer.

Run echo "127.0.0.1 pboard" >> /etc/hosts. You will be able to reach the puppet board at http://pboard:8081/

Nginx auto-configuration

Puppet installs Serf on all the nodes.

Serf will take care of the configuration of the load balancer:

• It will add an entry to the upstream when a node boots up.
• It will remove this entry when the node fail.

Update puppet configuration

After you change the configuration tree, you might want the puppet master to take into account the changes. To do so without re-installing the virtual machine, you can run ./up

Puppet test

To run a puppet test on any machine, you can run ./pt machine1 machine2 machine3 ...