You Have 400 Servers to Configure. Now What? Let Ansible Do the Work.

Picture this. You have four EC2 instances running in your AWS account, and someone asks you to install Apache on all four of them. What do you do? The obvious answer most people go with is SSH into each machine, run the install command, repeat. Simple enough when it is four servers. But what happens when it is forty? Or four hundred? In a real enterprise environment, that number is not exaggerated at all. That is exactly the problem that Ansible was built to solve. And once you understand what it does and how it thinks, you will wonder how anyone managed large infrastructure without it.