What is Infrastructure as Code and How Does it Work?

Infrastructure as Code (IaC) is the latest in a wave of technological advances assisting system administrators and IT infrastructure. Before the growing involvement of utilizing the cloud, system administrators had to get much more hands-on when manually configuring hardware and software.


Over the past decade or so, more and more enterprises have faced scaling issues that were usually just an issue for global companies. IaC was created to respond to this growing issue and appeals to IT administrators and software developers because it enables users to quickly deploy new applications with similar tools as any software project.


The number of infrastructure components has increased due to cloud computing. With more programs releasing for production regularly, infrastructure must quickly get set up, scaled, and taken down. It becomes challenging to navigate the size of today’s infrastructure without an IaC experience in place.

What is Infrastructure as Code?

Infrastructure as Code utilizes a descriptive model to manage infrastructures such as networks or virtual machines. Without using physical hardware configurations, IaC operates large-scale computer data centers through definition and configuration files that are machine-readable.


Think of definition files like sets of blueprints. Information and specifics about the base operating system are stored on these files. Programmers can develop new software or applications from these files or blueprints of the base operating system.


Configuration management with IaC becomes a more straightforward process as Infrastructure as Code helps your IT infrastructure avoid configuration changes that may be ad-hoc.


Before IaC, IT staff had to adjust settings to control their systems manually. They could use a few throwaway scripts to automate certain operations, but that was about it. The setup of your infrastructure takes the form of a text file with IaC. It’s simple to edit, copy, and distribute because it’s just text.


What are the Benefits of Infrastructure as Code?

Price and quickness are two categories that define the importance of IaC. Cost-saving helps to benefit the company financially and in terms of people and effort, since eliminating the manual aspect allows employees to refocus their energies on other activities.


The first significant advantage of IaC is its quickness. Infrastructure as code allows you to run a script to set up the entire infrastructure easily. You can do this for any setting, including staging, quality assurance, and so on. IaC will improve the efficiency of the whole software development lifecycle.

Also, developers don’t have to manually provision and maintain servers, operating systems, storage, and other infrastructure components each time they develop or launch an application because infrastructure provisions automation with IaC.


Infrastructure as Code allows DevOps teams to validate software early in the development cycle in production-like environments. These teams expect to be able to provision several research conditions efficiently. To avoid common implementation problems, infrastructure defined as code may be checked and reviewed. Based on IaC definitions, the cloud dynamically provisioned and decommissioned environments.


Teams that use IaC can create secure environments quickly and at a large scale. Teams can prevent manual environment setup and ensure continuity by coding the desired state of their environments. IaC-based infrastructure implementations are repeatable and avoid runtime problems induced by configuration drift or missed dependencies.


Lastly, without a doubt, one of the most significant advantages of IaC is the reduction of infrastructure maintenance costs. You will drastically reduce the costs by combining cloud storage and IaC. Since you won’t have to waste money on hardware, hire staff to run it, or build or rent physical space to store it, you’ll save money. Since IaC is an opportunity cost, it lowers your costs.

How does Infrastructure as Code Work?

Declarative vs. imperative are the two main approaches to IaC. The distinction between declarative and imperative approaches is a question of ‘what’ and ‘how.’ The declarative approach focuses on the final desired setup. In contrast, the imperative approach focuses on how the infrastructure can be updated to achieve it.


A declarative method basically “declares” the intended result. The declarative method reveals what the final outcome looks like instead of simply detailing the sequence of actions the infrastructure takes to achieve the final result.


Conversely, the imperative method “issues commands.” It specifies a set of commands or directives that the infrastructure must follow to achieve the desired outcome.


Often IaC tools use a declarative approach to provisioning networks and can do so automatically. A declarative IaC method can add modifications to the target state for you if you render them. You’ll need to work out how to apply those modifications if you’re using an imperative tool. IaC tools are often capable of operating under both approaches but try to choose one over the other.

Infrastructure as Code in the Future

IaC is geared as the next evolution in IT management and the DevOps movement from lowering costs to increasing efficiency. Allowing developers to focus on other tasks can help enterprises reach new potentials, and IaC can ultimately help eliminate human error processes throughout the lifecycle of any software from development to deployment.

You will simplify IT operations and whole technologies, departments, and organizations by establishing an enterprise-wide approach to automation with infrastructure as Code.


Contact us at info@quantilus.com for a consultation and learn more about what Quantilus has to offer here.



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