Infrastructure as Code

Abstract

Before the advent of cloud computing, most application infrastructure environments were built manually. Building all the environments including the production environment was done by infrastructure engineers using manual techniques and processes. There was some scripting employed, but those scripts were run manually. The infrastructure would generally not undergo changes and would be exclusively created and maintained by infrastructure engineers. There was not much need to scale the infrastructure, neither were there disruptive changes to it apart from failing hardware. The manual creation and maintenance would work fine in most cases.