What Is Cloud Infrastructure as Code (IaC)?

Infrastructure as Code, commonly called IaC, is an approach where infrastructure is defined and managed through configuration files instead of being configured manually through cloud consoles. It allows infrastructure deployment to follow repeatable software-engineering practices such as version control, review, testing, and automation.

How Does Infrastructure as Code Work?

Traditionally, an administrator might manually create:

• Virtual machines
• Networks
• Storage
• Firewall rules
• Load balancers

With cloud Infrastructure as Code, these resources are described in configuration files.

An IaC tool then communicates with infrastructure platforms and creates or modifies resources according to the configuration.

HashiCorp describes IaC as defining infrastructure declaratively in configuration files so specifications can be reviewed, tested, versioned, and automated.

What Can IaC Manage?

Infrastructure as Code can manage components such as:

Infrastructure Area	Examples
Compute	Virtual machines and instances
Networking	Networks, subnets and security rules
Storage	Disks and object-storage resources
Platforms	Managed cloud services
DNS	DNS records and configuration

Terraform, for example, can manage both cloud and on-premises resources through provider APIs.

Benefits of Infrastructure as Code

Consistency

Teams can recreate environments from the same configuration instead of manually repeating setup steps.

Version Control

IaC files can be stored in systems such as Git, allowing teams to track infrastructure changes.

Automation

Infrastructure deployment can become part of CI/CD workflows.

Reviewability

Engineers can inspect proposed infrastructure changes before applying them.

Terraform’s typical workflow includes write, plan, and apply, enabling teams to define resources, preview intended changes, and then execute them.

Is IaC Only for Large Organisations?

No. Even smaller environments can benefit when infrastructure needs to be reproducible or regularly modified.

However, teams still need appropriate security, code reviews, state management, testing, and access controls.

Conclusion

Infrastructure as Code helps organisations manage cloud infrastructure using structured, repeatable, and version-controlled configurations.

Prismberry Technologies also works across cloud engineering and infrastructure services. Organisations exploring Infrastructure as Code or cloud automation can contact the Prismberry team for further assistance.