Book Image

Oracle Cloud Infrastructure for Solutions Architects

By : Prasenjit Sarkar
Book Image

Oracle Cloud Infrastructure for Solutions Architects

By: Prasenjit Sarkar

Overview of this book

Oracle Cloud Infrastructure (OCI) is a set of complementary cloud services that enables you to build and run a wide range of applications and services in a highly available hosted environment. This book is a fast-paced practical guide that will help you develop the capabilities to leverage OCI services and effectively manage your cloud infrastructure. Oracle Cloud Infrastructure for Solutions Architects begins by helping you get to grips with the fundamentals of Oracle Cloud Infrastructure, and moves on to cover the building blocks of the layers of Infrastructure as a Service (IaaS), such as Identity and Access Management (IAM), compute, storage, network, and database. As you advance, you’ll delve into the development aspects of OCI, where you’ll learn to build cloud-native applications and perform operations on OCI resources as well as use the CLI, API, and SDK. Finally, you’ll explore the capabilities of building an Oracle hybrid cloud infrastructure. By the end of this book, you’ll have learned how to leverage the OCI and gained a solid understanding of the persona of an architect as well as a developer’s perspective.
Table of Contents (15 chapters)
1
Section 1: Core Concepts of Oracle Cloud Infrastructure
Free Chapter
2
Chapter 1: Introduction to Oracle Cloud Infrastructure
7
Section 2: Understanding the Additional Layers of Oracle Cloud Infrastructure

Exposing microservices using the OCI API gateway

An API gateway is a network attached device, much like Load Balancer as a Service (LBaaS). It is fully managed by Oracle; the customer does not need to manage it. If you want to expose a private application endpoint to the public internet and implement authentication, authorization, cross-origin resource sharing (CORS), rate limiting, routing, and so on, then the API gateway is the answer. Not only do you get the benefits of running an API gateway as an ingress to the application, but you can also get fine-grained monitoring and logging entry points for your code flow via the API that's invoked by a client.

You can create one or more gateways and attach them to a regional subnet, which then processes traffic coming in from the clients and then routes those requests to the defined backend services. You can use the same gateway to serve multiple endpoints. This can be a load balancer, compute instances, or Oracle functions. The...