Book Image

AWS for Solutions Architects

By : Alberto Artasanchez
3 (1)
Book Image

AWS for Solutions Architects

3 (1)
By: Alberto Artasanchez

Overview of this book

One of the most popular cloud platforms in the world, Amazon Web Services (AWS) offers hundreds of services with thousands of features to help you build scalable cloud solutions; however, it can be overwhelming to navigate the vast number of services and decide which ones best suit your requirements. Whether you are an application architect, enterprise architect, developer, or operations engineer, this book will take you through AWS architectural patterns and guide you in selecting the most appropriate services for your projects. AWS for Solutions Architects is a comprehensive guide that covers the essential concepts that you need to know for designing well-architected AWS solutions that solve the challenges organizations face daily. You'll get to grips with AWS architectural principles and patterns by implementing best practices and recommended techniques for real-world use cases. The book will show you how to enhance operational efficiency, security, reliability, performance, and cost-effectiveness using real-world examples. By the end of this AWS book, you'll have gained a clear understanding of how to design AWS architectures using the most appropriate services to meet your organization's technological and business requirements.
Table of Contents (20 chapters)
1
Section 1: Exploring AWS
4
Section 2: AWS Service Offerings and Use Cases
11
Section 3: Applying Architectural Patterns and Reference Architectures
17
Section 4: Hands-On Labs

Amazon Elastic Load Balancing

Elastic Load Balancing (ELB) in AWS allows you to assemble arrays of similar EC2 instances to be able to distribute incoming traffic among these instances. ELB can distribute this application or network traffic across EC2 instances or containers within the same AZs or across AZs.

In addition, to help with scalability, ELB also increases availability and reliability. A core feature of ELB is the ability to implement health checks on the managed instances. An ELB health check is used to determine the health or availability of registered EC2 instances and their readiness to receive traffic. A health check is simply a message or request sent to the server and the response that may or may not be received. If the instance responds within the 200 range, everything is fine. Any other response is considered unhealthy. If an instance does not return a healthy status, it is considered unavailable and ELB will stop sending application traffic to that instance until...