Lite eBay Webapp

• Developed RESTful APIs (authentication, order, ticketing, payment) using Java, SpringBoot, and JPA.
• Automated the creation of Amazon Machine Images (AMIs) with Packer, reduced image build time by 50%.
• Implemented Infrastructure-as-Code on AWS with Terraform, deployed and managed EC2, VPC, RDS, and S3 resources.
• Configured a CI/CD pipeline on GitHub Actions with YAML, and conducted JUnit tests with MockMVC.
• Improved system scalability by over 70% through configuring AWS CloudWatch, Load Balancer, and Auto Scaling group.
• Streamlined cluster management with Kubernetes, Skaffold, and Docker.

 

Architecture Diagram

Tools and Technologies

   

Infrastructure	VPC, ELB, EC2, Route53, Cloud formation, Shell, Packer
Webapp	Java, Spring Boot, MySQL, Maven
CI/CD	Github Actions, AWS Code Deploy
Alerting and logging	statsd, Cloud Watch, SNS, SES, Lambda
Security	SSL

Infrastructure-setup

• Create the networking setup using cloud formation and aws cli
• Create the required IAM policies and users
• Setup Load Balancers, Route53, RDS, S3, SNS, SES, SSL

Prerequisites

1. Git clone this repository to your computer

git@github.com:Hao6666666/Lite_eBay.git

2. Install MySQL database to your computer

https://dev.mysql.com/downloads/installer/

3. Change MySQL database settings

Find resources package and find the application.yml file

Change MySQL database username and password as your username and password

4. Run webapp

Steps to run web app

 1. After clone git repository to your local system and navigate to the project in Terminal using cd webapp
 2. Open IDEA
 3. run webapp

 

aws-infra (Infra-as-code)

  Packer

• Implemented CI to build out an AMI and share it between organization on AWS
• Created provisioners and bootstrapped the EC2 instance with required tools like Tomcat, JAVA, Python

Terraform

• Configured AWS cloud resources such as EC2, VPC, S3, RDS, Route53, ELB, Auto-scalling group, etc.

Pre requisites

1. Git clone this repository to your computer.

git@github.com:Hao6666666/Lite_eBay.git

2. Initiate terraform in your commond line.

terraform init

3. Plan terraform to AWS in your commond line.

terraform plan -var-file="dev.tfvars"
or
terraform plan -var-file="demo.tfvars"

4. Apply terraform in your commond line.

terraform apply -var-file="dev.tfvars"
or
terraform apply -var-file="demo.tfvars"

5. Destroy terraform in your commond line.

terraform destroy -var-file="dev.tfvars"
or
terraform destroy -var-file="demo.tfvars"

6. Command to import SSL certificate

aws acm import-certificate --profile demo --certificate fileb://demo_tuffy666_me.crt --private-key fileb://private.key --certificate-chain fileb://demo_tuffy666_me.ca-bundle

 

CI/CD

• Using github actions configured CI/CD pipeline, the pipeline YAML file can be found in .github/workflos

Running Tests

• Used mockito and junit for test case.
• Run WebappApplication test cases: open the webapp aplication on your IDE -> right click on webapp -> Run 'All Tests'

Auto scaling groups

• Created auto scaling groups to scale to the application to handle the webtraffic and keep the costs low when traffic is low
• Created cloud watch alarms to scale up and scale down the EC2 instances