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Infrastructure as code (IaC) lets you define, provision, and manage infrastructure using code instead of manual clicks in a cloud console. Tasks you would normally perform interactively in the AWS console — for example, creating an S3 bucket — become declarative or programmatic definitions stored in a codebase, making infrastructure repeatable, auditable, and automatable.
A screenshot of the AWS S3 "Create bucket" page showing general configuration for a new bucket (AWS Region: Asia Pacific Singapore) with the bucket name field filled as "myawsbucket." The lower section shows object ownership options and ACL settings.
Why use IaC? Key benefits at a glance:
Best practice: keep IaC in version control (e.g., Git), run automated tests, and deploy changes through CI/CD pipelines to ensure safe, auditable infrastructure changes.
A presentation slide titled "IaC – Benefits" showing two colored cards: "01 Reproducibility and consistency" (orange) and "02 Automation and speed" (green). The slide is branded © Copyright KodeKloud.
A brief history of infrastructure management
A timeline slide titled "Infrastructure Management – Evolution" showing milestones from 2000 to 2019. It highlights stages like Manual Server Management, Configuration Management tools, the rise of declarative IaC (Terraform, 2014), cloud-native IaC (CloudFormation, 2015), and modern IaC with programming languages (AWS CDK, Pulumi, 2019).
Next steps In the next lesson/article we’ll begin practical, hands-on work with infrastructure as code using CDK for Terraform with TypeScript. You’ll learn core concepts, see examples that compile to Terraform, and build reusable, testable constructs with TypeScript. Links and references

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