OCI + Azure = Multicloud

In this lesson, we explore what multicloud really means and why it's becoming a critical strategy in modern infrastructure design. You’ll learn how using two or more cloud providers—like Oracle Cloud Infrastructure (OCI) and Microsoft Azure—can increase flexibility, avoid vendor lock-in, and optimize for cost or capabilities. We highlight the key features and strengths of each platform, showing how they complement each other in real-world deployments. OCI offers high performance and deep integration with Oracle databases, while Azure provides global reach and seamless tooling with Microsoft services. Together, they form a powerful multicloud foundation.

Next, we walk through a side-by-side comparison of core building blocks—such as networking, compute, storage, and managed databases—so you can understand the equivalent resources in both clouds. You’ll see how common infrastructure concepts translate across platforms, even if the naming differs. This understanding is key to designing cloud-agnostic modules in Terraform or OpenTofu. By the end of the lesson, you’ll have a clear mental model for working in a multicloud world.4