README.md

Web-scale Data Management Project Template

Project implementation, deployment scripts and presentation for Group 2 for the IN4331 Web-Scale Data Management course.

Team

Student Name	Student Number
Bailey Tjiong	4474686
Frank Bredius	4575377
Jan-Mark Dannenberg	4889576
Pepijn te Marvelde	4886496

Project

Technologies

• Aio-Pika
• Docker
• Flask-SQLAlchemy
• Grafana
• Helm
• Kubernetes
• NGINX
• PostgreSQL
• Prometheus
• QUnicorn
• Quart
• RabbitMQ
• Uvicorn

Structure

• env Folder containing the PostgreSQL env variables for the docker-compose deployment

• helm-config Helm chart values for Prometheus and ingress-nginx

• k8s Folder containing the kubernetes deployments, apps and services for the following services:

  • rabbitmq
    • RabbitMQ Orchestrator
  • database-deployments/
    • Order Postgres
    • Payment Postgres
    • Stock Postgres
  • kubegres
    • postgres cluster
  • Order Service
  • Payment Service
  • Stock Service
  • Payment Queue
  • Stock Queue

• order Folder containing the order application logic, the message producer and dockerfile.

• payment Folder containing the payment application logic, the message consumer and dockerfile.

• stock Folder containing the stock application logic, the message consumer and dockerfile.

• test Folder containing some basic correctness tests for the entire system.

How to run

Make sure kubectl is pointing at a k8s endpiont.

• Run deploy-to-cluster.sh
• Verify everything is up by running kubectl get pods

Architecture

In this project we have created a microservice architecture using the SAGA Pattern, see images. This architecture consists of three different services: stock-, payment-, and order service. These services use PostgreSQL to store data and RabbitMQ to communicate with each other in an event-driven manner.

Image 1 Project Architecture

Image 2 SAGA Pattern

Presentation

For more information regarding the project, see the presentation document in the assets folder.