How is Infrastructure as Code Helping Organizations Scale Their IT?
Sep 22, 2022
How is Infrastructure as Code Helping Organizations Scale Their IT?

In the past, maintaining the IT system was a tricky task. For instance, network administrators would have to actively configure & maintain every piece of software and hardware necessary for the programs to function. The physical installation of servers would happen before any configuration. The program deployment would take place only after the computers had been appropriately set up. But gradually, that dynamic has changed.

Cloud computing is one trend that has revolutionized and improved how businesses plan, handle and operate their IT infrastructures. Companies now don't need to construct and manage data centers, and the significant costs directly associated with them have also decreased. Additionally, the use of the cloud has sped up system setup times, solving difficulties with scaling and availability.

Another development that has proved essential in improving firms' IT infrastructure, achieving organizational objectives, and gaining a competitive advantage in the market is infrastructure as a code.

In this article, you will learn what infrastructure as Code (IaC) is and how it helps with scalability.


What is Infrastructure as Code (IaC)?

The phrase "Infrastructure as Code" (IaC) describes a collection of methods, procedures, guidelines, and tools for managing, configuring, and deploying computer infrastructure via machine-readable scripts and other machine-readable documents. The concept of maintaining and deploying coherent architecture on request using machine-readable definition files is known as infrastructure as Code, aka IaC. IaC removes the requirement for physically managing the infrastructure that is intimately linked to hardware resources by basing it on contemporary concepts such as virtualization, cloud technology, and automation. 

IaC is a technique for improving infrastructure management accuracy and installation speed. 


IAC is a crucial DevOps technique. IaC is the method of textually specifying every program parameter and network configuration so they may be kept in version control systems (VCS) and versioned as needed. Version control allows businesses to prevent inconsistent IT environments, which enhances the efficiency and safety of their processes for software development. Groups that IaC will quickly and efficiently produce secure environments. By enforcing consistency and reflecting the ideal situation of their environments in a program, teams can reduce manual environment setup. IaC enables repetitive infrastructure installations that avoid runtime problems brought on by errant configuration changes or insufficient dependencies. Using a standardized set of processes and technologies, DevOps teams may collaborate to produce apps and the infrastructure that runs them quickly, consistently, as well as at scale.


How Does Infrastructure as Code Work?

It would be best if you first determined whether to create an irreversible or changeable infrastructure before automating the architecture with IaC and selecting an IaC service for it.


A Flexible Infrastructure 

This type of infrastructure is changeable after it has been deployed and can afterward be upgraded or altered to meet your specific requirements. The teams working on software may quickly adapt servers to their needs and address any unforeseen security concerns thanks to flexible infrastructure. However, when referring to IaC, mutable infrastructure undercuts one of its fundamental advantages by preventing configuration uniformity among deployment and environments as well as inside versions, which tends to make version control challenges.

Unchangeable Architecture 

Configure IaC as a permanent infrastructure to avoid the mentioned trouble; when deployed, the infrastructure cannot be changed or upgraded. In certain situations, you wouldn't update your current infrastructure even when it has to be updated. Alternatively, you introduce a new edition of the infrastructure to replace the old model. By doing this, the problem of configuration drift is resolved, and uniformity across many environments is guaranteed. Furthermore, teams may maintain and monitor several infrastructure editions using immutable infrastructure and, if absolutely required, go back to an earlier release. Hence, the construction of immutable infrastructure is much more realistic and possible, enhancing all the advantages of IaC.


Benefits of IaC for Businesses

For businesses, implementing the infrastructure as a code has several significant advantages.

Decreased Installation Time

IaC enables you to execute a program to spin up a whole infrastructural design. An organization may quickly set up the necessary applications and network settings, establish databases, storage solutions, and cloud solutions, and deploy servers. By eliminating human labour, the code-driven methodology automates the infrastructure provision from production through development. Implementation strategies also help in testing the infrastructure's resiliency, minimizing possible losses, and provisioning delays. IaC makes it possible to build up the entire infrastructure relatively short time by executing a script. Additionally, it aids in enhancing the effectiveness of the entire process of software development.


Automated Infrastructure 

IaC standardizes the infrastructure configuration procedure. The traditional method of providing an infrastructure could result in manual mistakes that result in some variations in setups and make the same difficult to diagnose. Before building software applications, ad hoc setting disruption brought configuration deviations between various IT platforms, which created significant deployment and security problems. By consistently producing target environments using the same config, IaC avoids these deviations. IaC upholds consistency, minimizes mistakes and deviations, lowers the possibility of infrastructure misfit, and finally assists in the overall stability of deployed applications. With IaC, the concept of infrastructure provision is advanced with a smaller chance of mistakes or deviation. This will lessen any infrastructure configuration incompatibilities and improve the application's performance.


Increased Software Development Effectiveness 

Having IaC in the equation, programmer efficiency rises, resulting in acceleration and improvement of the software delivery process. With IaC, the safety team members can quickly obtain their staging environment provisioned for user acceptance testing. Developers can swiftly get their sandbox or CI/CD environments, the Quality assurance team can provide a controlled testing environment that closely resembles production environments for extensive testing, & at last, the whole infrastructure and software code written can be implemented to the production server at the same time.


Change Administration

Versioning the infrastructure manifests makes it simple to set up the very same environment anytime necessary, allowing for the use of consistent environments all through the development cycle. Every configuration alteration and its related modifications are dynamically tracked and documented. You have the power to monitor and trace these modifications quickly, which speeds up bugs and error fixing, lowers the likelihood of problems, ensures quality, and increases the safety of the program.


Decreased Cost of Installation

Another of the main advantages of Infrastructure as a Code is the reduction of the expenses related to infrastructure management. Utilizing IaC in the cloud allows businesses to save significant expenses by avoiding purchasing gear, paying staff to operate it, or leasing tangible storage space for it. IaC helps enterprises save time and resources while reducing the expense of infrastructure maintenance. Effective automation solutions can help organizations reduce expenses by relieving software developers of labour-intensive, error-prone manual operations. The engineers can work more, devote more time to worthwhile projects like inventions, create new products or solutions, and provide superior customer service. 


What Does IaC Mean For DevOps?

The key to DevOps is culture. It's a method where software developers from the operations and development teams collaborate to engage in a service's whole life span, from conception to production support. It contributes to continuous integration and constant deployment, enabling quick execution.


Nevertheless, one crucial aspect of DevOps implementation should never be overlooked: concentrating on cultural shifts inside your organization to create a cooperative workplace and deliver software more quickly than ever.


IaC seems to have the capacity to quickly and widely supply stable environments. Using IaC to code infrastructure installations enables repetitive patterns that avoid execution problems brought on by errant configuration changes or missing dependencies. In order to provide programs and support infrastructures swiftly and dependably, DevOps teams will be able to collaborate using a standard set of processes and technologies.

The companies anticipate that their provision toolkits will perform effectively with a variety of settings that are always accessible and have all been tested in accordance with IaC criteria! Now, they are able to test software in real production settings first before the development cycle makes it much too costly and time-consuming.


What Are The Challenges That Come with IaC?


Configuration Drift

Even the most robust and reliable server settings can alter over time if you're not cautious. Due to this, it's crucial to check for external interference while making infrastructure upgrades. To avoid changes causing a change in system groups across servers, you should keep a record of each and every stage that must be altered in order for them to all be done in accordance with previously established procedures. 


Consider a scenario where a problem only affected one group but not others that were identical to it. In that instance, this could somewhat affect those numbers; however, if nothing else occurs, we will not be able to pinpoint their exact source.

Language Dependency 

Infrastructure as Code gives programmers extra obligation for writing effective and reusable programs is one of its primary problems. Additionally, they must be proficient in languages like JSON or YAML. 


Use These Best Practices To Maximize The Effectiveness of Your IaC Approach


Try To Make it Immutable

The idea behind an irreversible infrastructure would be that parts of the IT architecture be switched out for each release instead of being altered permanently. You could create and start the program for an infrastructure module just once, use it in several instances, but never alter it.

If your setup needs to be changed, you will disassemble the module and start fresh with a clean stack. Consistency, heightened security, the prevention of configuration drifting, and ease of troubleshooting are all advantages of having an immutable infrastructure.

Evaluate and Monitor Your Configurations 

Because Infrastructure as Code is nothing but a program, it can be evaluated similarly to any other piece of Code. Therefore, be sure to put it to the test! While deploying the servers to operation, you may check for faults and anomalies by using QA and monitoring methods for Infrastructure as Code.


Put All of Your Infrastructure Requirements into Code 

IaC wouldn't exist alone without the "code" component. Make sure that all your infrastructure requirements are written explicitly in configuration files, regardless of what Iac tool you use.

Use Microservice Architecture

Applying the idea of microservices architecture to IaC will allow you to split the infrastructure into independent components and then automatically connect them. By using this technique, you may have more control over the various components of the Iac and specify who has authority over which component or element of your ideal infrastructure. Because each microservice has a unique configuration framework, the infrastructure is more consistently configured. Additionally, you can restrict configuration modifications, which will hasten bug identification and increase the responsiveness of your workforce.

Practice Caution With Public Libraries

It would be best if you were cautious about managing dependencies on unreviewed public Code, as you would with open software packages for any other language. To prevent availability concerns or version stomping, verify the program, review licenses, and—if you decide to use it, mirror your own duplicate of the Code internally. The deployment process shouldn't break down at a crucial time because the external package you depend on was unavailable due to GitHub or Terraform cloud going down. If possible, specify dependencies using a hash rather than a version tag to avoid instances in which the program in a published version was changed. 

Open-source It Inside Your Company 

It's probable that you'll have a crew creating and maintaining shareable infrastructure programs. Make an attempt to develop openly and solicit input from all areas of the company.



IaC has significantly altered the infrastructure of an organization. Through streamlined procedures, the advantages of this have increased productivity and reduced error rates. Such improvements provide specific difficulties, such as the need to rewrite templates if problems or observations are found.

IaC is often seen as a big development for any business hoping to benefit from its efficacy and productivity while minimizing errors from input blunders, which can have expensive repercussions. IaC could be the next stage if cloud computing is seen as the initial step in resolving the problems with manual IT administration.