Building my DevOps Portfolio 🚀

Project 3: Rearchitecting Web App on AWS Cloud

As an employee at EY, I had the privilege of access to Udemy for Business. I decided to further enhance my DevOps skills by enrolling in the "DevOps Projects | 20 Real-Time DevOps Projects" course, and I'm sharing my journey for educational purposes.

About

• ✅ Previous project: Multi-Tier web application stack (VProfile).
• ✅ Re-Architect Services on AWS Cloud.
• ✅ Architecture aimed at boosting agility and improving business continuity.

Scenario

• 👩🏽‍💻 Project services running on Physical/Virtual/Cloud machines.
• 👩🏽‍💻 A variety of services that power your project runtime.
• 👩🏽‍💻 Multiple teams working around the cloud: Cloud computing team, Virtualization team, Data Center team, Operations team, Monitoring team, and Sysadmin team involved.

Problem

• ❌ Operational Overhead.
• ❌ Struggling with Uptime and Scaling.
• ❌ Upfront CapEx and Regular OpEx.
• ❌ Manual Process.
• ❌ Difficult to automate.

Solution

• ✅ To have a Cloud computing setup based on PaaS or SaaS.
• ✅ Pay as you go.
• ✅ Infrastructure as Code (IaC).
• ✅ Flexibility.
• ✅ Ease of Infra management.
• ✅ Automation to avoid human errors.

AWS Services

• ☁️ Beanstalk: VM for Tomcat (App server).
• ☁️ Beanstalk: Nginx LB Replacement.
• ☁️ S3/EFS: Storage.
• ☁️ RDS Instance: Databases.
• ☁️ Elastic Cache: Memcached.
• ☁️ Active MQ: RabbitMQ.
• ☁️ Route 53: DNS.
• ☁️ Cloudfront: Content Delivery Network.

Objective

• 🎯 Flexible infrastructure.
• 🎯 No upfront cost.
• 🎯 Infrastructure as Code (IaC).
• 🎯 Platform as a Service (PaaS).
• 🎯 Software as a Service (SaaS).
• 🎯 To simplify infrastructure management and reduce operational overhead.

Comparison with AWS/Infra used on previous projects

Current Infra	Previous Infra
Beanstalk	Tomcat EC2/VM
ELB in Beanstalk	Nginx LB/ELB
Autoscaling	None / Autoscaling
EFS/S3	NFS / S3 / EFS
RDS	MySQL on VM/EC2
Elastic Cache	Memcached on VM/EC2
Active MQ	RabbitMQ on VM/EC2
Route53	GoDaddy, Local DNS
Cloudfront	None / Multi DC Across world

Flow of Execution

1. ⏭️ Login to AWS Account.
2. ⏭️ Create key pair for Beanstalk instance login.
3. ⏭️ Create a security group for Elasticache, RDS, and ActiveMQ.
4. ⏭️ Create RDS, Amazon Elastic Cache, and Amazon Active MQ.
5. ⏭️ Create an Elastic Beanstalk Environment.
6. ⏭️ Update the security group of the backend to allow traffic from the Bean SG.
7. ⏭️ Update the security group of the backend to allow internal traffic.
8. ⏭️ Launch an EC2 Instance for DB initialization.
9. ⏭️ Log in to the instance and initialize the RDS DB.
10. ⏭️ Change the health check on Beanstalk to login.
11. ⏭️ Add a 443 https Listener to ELB.
12. ⏭️ Build an artifact with backend information.
13. ⏭️ Deploy the artifact to Beanstalk.
14. ⏭️ Create a CDN with an SSL certificate.
15. ⏭️ Update the entry in GoDaddy DNS Zones.
16. ⏭️ Test the URL.

Repository

GitHub Repository: vprofile-project-3

Udemy Course: DevOps Projects | 20 Real-Time DevOps Projects

Infrastructure Architecture Diagram

Automated Provisioning of the infrastructure evidence.

Prerequisites

• JDK 11
• Maven 3
• MySQL 8

Technologies

• Spring MVC
• Spring Security
• Spring Data JPA
• Maven
• JSP
• Tomcat
• MySQL
• Memcached
• Rabbitmq
• ElasticSearch

Database

Here,we used Mysql DB sql dump file:

• /src/main/resources/db_backup.sql
• db_backup.sql file is a mysql dump file.we have to import this dump to mysql db server

• mysql -u <user_name> -p accounts < db_backup.sql