Infrastructure as Code (IaC)

Infrastructure as Code (IaC) is a key DevOps practice that involves managing and provisioning computing infrastructure through machine-readable definition files, rather than through physical hardware configuration or interactive configuration tools. By using code to define infrastructure, IaC enables the creation, updating, and deletion of infrastructure resources in a consistent and repeatable manner. This approach eliminates manual processes, reduces human error, and allows for more scalable and reliable infrastructure management. Tools such as Terraform, Ansible, and AWS CloudFormation are commonly used to implement IaC, facilitating automated deployment and configuration of infrastructure resources.

IaC offers significant benefits including version control, testing, and automation. Infrastructure definitions can be stored in version control systems alongside application code, allowing for detailed tracking of infrastructure changes over time. This enables teams to apply the same rigor to infrastructure as they do to application development, including code reviews, automated testing, and continuous integration/continuous deployment (CI/CD) pipelines. Additionally, IaC promotes infrastructure consistency across different environments (development, staging, production), reducing the risk of configuration drift and ensuring that systems remain stable and predictable. By adopting IaC, organizations can achieve faster deployments, improved collaboration between development and operations teams, and enhanced overall efficiency.

References:

AWS: What is Infrastructure as Code

Red Hat: What is Infrastructure as Code

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