Building an Ansible inventory

In this recipe, we will outline how to build an Ansible inventory to describe the infrastructure network setup that we will build across the AWS public cloud. This is a mandatory step in order to define all of our VPCs across all the regions where we will deploy our infrastructure.

How to do it...

1. Create a new ch7_aws folder and create a hosts file inside it, as shown here:

$ cat hosts

[us]
 us_prod_vpc

[eu]
 eu_prod_vpc

[prod_vpcs]
 us_prod_vpc
 eu_prod_vpc

2. Create the ansible.cfg file inside ch7_aws with the contents shown here:

$ cat ansible.cfg

[defaults]
 inventory=hosts
 vault_password_file=~/.ansible_vault_passwd
 gathering=explicit
 transport=local
 retry_files_enabled=False
 action_warnings=False...