The application is developed by React.js and Node.js.

The system allows users to select a stadium and join the activity based on the user's location and the stadium's capacity. It also provides the admin page to manage the stadium and the activity.

See Details for more information.

The frontend service is deployed on Azure Blob Storage and uses CDN to route the URL traffic to the Single Page Application.

The backend service is deployed on Azure Kubernetes Service. It uses Nginx Ingress Controller as a Load Balancer and reverse proxy to handle SSL termination. And bind the ports to expose the services in K8s. The application is deployed by Helm.

We use GitOps to automate the infrasturcture. The CI/CD pipeline is built by Github Actions and ArgoCD. The Github Actions is triggered by the repo and uploads the static files to Blob Storage and pushes the image to Azure Container Registry. Then, the ArgoCD detects the change of the repo and deploys the application to AKS.

The infrastructure under the application is built by Terraform. The Terraform then manages our infrastructure on Azure.

The application is monitored by Loki and Grafana and the alert is sent to Discord channel when the application goes wrong.