DevOps Intermediate

What is Infrastructure as Code (IaC)?

The practice of managing infrastructure through machine-readable configuration files rather than manual processes.

IaC treats infrastructure configuration as software — versioned, reviewed, and automated. This ensures consistency, repeatability, and reduces human error. Changes are tracked in version control.

Popular tools include Terraform (multi-cloud), AWS CloudFormation, Ansible (configuration management), Puppet, and Chef. IaC enables disaster recovery by rebuilding infrastructure from code.

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A lightweight virtualization method that packages applications with their dependencies into isolated, portable containers.

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