In many cases configuring a new server is a repetitive task. Once the operating system is installed, we have to add accounts for administrators, install some basic packages, setup the application and secure everything. Even though there are some differences between servers designed for two different applications, certainly there will be some common things too. Especially in case of the same technology (not to mention exactly the same stack, like Symfony + nginx + MySQL).
For almost two years we’ve used Ansible at FINGO for preparing configuration of servers. This allowed us to spend more time on creative and interesting things, since the repetitive tasks were written once and now we can just include them from some common modules.