Creating the Puppet module for PostgreSQL

Ubuntu includes PostgreSQL on its repositories by default. To install PostgreSQL on Ubuntu, we can use the apt-get (or other apt-driving) command, but instead of that, we will modify the Vagrant file to include the shell commands to initialize PostgreSQL through Puppet.

Puppet is a software configuration management tool, but I like to say that it is a powerful infrastructure automation and delivery tool. In the following steps, we will see how to deploy PostgreSQL and how it can be configured easily with the help of this extraordinary tool:

1. Log out of the current vagrant ssh session and then destroy your Vagrant environment:

vagrant destroy

Answer y (=yes) to any questions if prompted:

Figure 7.19 – Destroying a VM

2. Change the vagrant file, C:\Projects\Vagrant\PostgreSQL-Master\Vagrantfile, and change the commented-out lines (near the bottom of the file) that read as follows:

# config.vm.provision...