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

VCN components

While consuming Oracle Cloud in any form, the first thing that you need to set up is your virtual network through a VCN. This section details the various different components of the VCN.

Subnets

Instances placed onto each subnet automatically receive their network configuration from the subnet itself. However, you also have the option of manually specifying your own private IP address from the address scope of the subnet.

You can specify a subnet as either a private subnet or a public subnet:

  • Private subnet – All the instances in this subnet get private IP addresses assigned to their attached VNICs.
  • Public subnet – Instances placed in the public subnet not only get a public IP address assigned for external communication, but they also get a private IP address assigned to their VNICs.

VNIC

A VNIC, or virtual network interface card, is attached to an instance, and allows the instance to connect to a subnet within a VCN. This...