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Building Scalable Web Applications Using AWS CLI & WordPress

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Introduction

About This Course Basic Concepts

Cloud Principles

What Benefits Does the Cloud Offer?What Is Scalability?What Is High Availability?

Getting Started: Setup and First Steps

What Is the AWS Free Tier?Hands-On: Run A Simple WordPress Blog on AWS, Part 1 Hands-On: Run A Simple WordPress Blog on AWS, Part 2 Hands-On: Store the SSH Key

AWS Console and User Management

What Is the AWS Console?Hands-On: Creating An IAM Group Hands-On: Creating an IAM User Storing the Access Key on Educative and Adding Permissions What Is the AWS CLI?How Do We Use the AWS CLI?Hands-On: Run an Application Through the AWS CLI JSON and JMESPath: How Do We Filter the Output?

Amazon EC2: Where It All Began

What Is EC2?Adopting a Cloud Mindset Creating an EC2 Instance: Overview A Closer Look at EC2 Instance Types A Closer Look at EC2 Instance Type: CLI Parameters EC2: AMIs and Operating Systems EC2: Storage Options EC2 Networking Security Groups and EC2 Networking Specifying User Data for EC2 Creating an EC2 Instance: Launch Templates

Course Assessment

Assessment 1/3: Cloud Basics and EC2

Hands-On: Let's Run Your Own Blog

Introduction: Objectives of the Hands-On Chapters in This Course Getting Started: Setting Up WordPress Taking It Apart: Components of a WordPress Blog Configuration: Environment Variables Configuration: Setting Up User Data Saving Your State Trying It Out Review: What We've Learned and What Our Deployment Looks Like

Basic Networking and Security

AWS Infrastructure: Regions, Availability Zones, and Data Centers Basics of IP Networking What Are VPCs and Subnets?Accessing the Internet: Gateways and Route Tables Hands-On: Recreate Security Groups for New VPC Hands-On: Updating the Launch Template to Use the New VPC

Managed Services: Databases with RDS

What Are Managed Services and What Are Their Benefits?Database Fundamentals for Cloud Architects Types of Databases Managed Databases on AWS: Overview

Hands-On: Move the Database to RDS

Migrate the WordPress Database to AWS RDS Update IAM Permissions to Manage RDS Databases Create a MariaDB Database with AWS RDS Connect WordPress to the New RDS Database Update Launch Template to Use RDS Database

Storage

What Storage Options Does AWS Offer?EBS: A Regular Drive EFS: A File Server S3: A Modern File Server Comparison of AWS Storage Options

Hands-On: Using AWS Storage Options

Making Storage Highly Available and Scalable Setting Up an EFS File System Setting Up EFS Mount Targets Creating a Security Group for the EFS Mount Targets Create the Security Group Ingress Rule Attaching a Security Group to EFS Mount Targets Mounting the EFS File System Modifying EC2 User Data to Mount EFS

SSM Parameter Store

Overview of SSM Parameter Store Hands-On: Updating IAM Permissions Hands-On: Creating an IAM Role Hands-On: Testing and Setting up SSM Parameters Hands-On: Moving Configuration Parameters to the SSM Parameter Store Hands-On: Updating the Launch Template

Course Assessment

Assessment 2/3: Storage, Networking, and Databases

Load Balancing and Autoscaling

What Is Load Balancing?Types of AWS Load Balancers What Is Autoscaling?

Hands-On: Scale Our Application

Creating a Second WordPress Instance Creating a Security Group for the Load Balancer Creating the Load Balancer Registering Targets Setting up Health Checks Try Out Health Checks Making It Scalable: Adding an Auto Scaling Group Check If the ASG Is Working Benefits of Autoscaling: ASGs in Action

High Availability (HA) and Disaster Recovery (DR)

DR and HA Revisited: Terminology, RTO, and RPO Review: High Availability and Resilience of Our WordPress Instances Review: High Availability and Resilience of Our EFS Storage Review: High Availability and Resilience of Our RDS Database

Hands-On: Make Your Website Highly Available

Review of Deployment Structure

Converting Our RDS Database to Multi-AZ

Testing the Multi-AZ RDS Automatic Failover

Reboot the RDS Instance

DNS, HTTPS, and Route 53

Fundamentals of DNS DNS Resource Record Types Introduction to Route 53 HTTPS Encryption

Bonus Hands-On: Going Live

Registering a Domain through Route 53 Registering a Domain through the AWS CLI Reviewing the Default Hosted Zone Setting Up DNS Records Creating an ACM SSL Certificate Enabling HTTPS on Our Load Balancer Redirecting HTTP to HTTPS

Summary

Review Components: Compute, Storage, Databases Plumbing: Networking and Security, DNS, and HTTPS More Resources and Courses

Course Assessment

Assessment 3/3: Load Balancing, High Availability, DNS & Routing

Feedback

Appendix

Create an AWS Account Setting Up a Budget as a Precaution Setting Up 2FA References

Reboot the RDS Instance

Learn to reboot the RDS instance and force a failover.

We'll cover the following

Check the IP address
Check the availability zone

Now, we can reboot the instance to force a failover. The command to reboot an RDS instance is reboot-db-instance. To make sure the failover happens, we can specify the --force-failover parameter. As usual, we also need to specify the database via the --db-instance-identifier parameter. We can limit the output via --query and only output the DBInstanceStatus.

Therefore, the full command looks like this:

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