Infrastructure refers to the underlying hardware, networks, and services required to run applications, including servers, storage, networking, operating systems, and cloud services. In modern environments, infrastructure is often provisioned programmatically using tools that support Infrastructure as Code (IaC). Infrastructure also includes monitoring, logging, DNS, load balancing, and deployment pipelines.
Why it matters
Reliable infrastructure ensures that systems are performant, secure, and scalable. Understanding infrastructure allows developers to diagnose production issues, design resilient architectures, and collaborate effectively with DevOps teams.
Examples
Deploying a service on AWS EC2, configuring storage buckets, or setting up a private VPC. Lessons on Compute, Storage, and Network and Infrastructure as Code Concepts explain these components.