Rest Assured

A full-stack health & fitness logging platform built with Next.js, React Native, Supabase, Docker, and Kubernetes.

The project includes a web application, mobile application, CI pipeline, containerized infrastructure, and Kubernetes deployment, demonstrating a complete modern development and DevOps workflow.

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Features

Workout Tracking

• create exercises
• organize training splits
• log workouts
• view training history

User Accounts

• Supabase authentication
• profile management
• secure user data

Cross Platform

• Web application (Next.js)
• Mobile application (React Native + Expo)

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Tech Stack

Rest Assured is built as a full-stack fitness app with a web interface, mobile app, Supabase backend, and a simple DevOps workflow.

Area	Tools
Web
Mobile
Backend
DevOps

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Architecture

flowchart TD
    Dev[Developer] --> Git[Git Push]
    Git --> CI[GitHub Actions CI]
    CI --> Build[Build Docker Image]
    Build --> Registry[Push to GHCR]
    Registry --> K8s[Kubernetes / Minikube]
    K8s --> Pods[Running App Containers]

    Web[Next.js Web App] --> Supabase[Supabase]
    Mobile[React Native / Expo App] --> Supabase
    Pods --> Supabase
    Supabase --> DB[(PostgreSQL)]

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Repository Structure

rest-assured
│
├─ web/                     # Next.js web application
│
├─ mobile/                  # React Native mobile app
│
├─ infra/
│   ├─ kubernetes/          # Kubernetes manifests
│   │   ├─ deployment.yml
│   │   ├─ service.yml
│   │   └─ secret.example.yml
│   │
│   └─ scripts/
│       ├─ deploy.sh        # Kubernetes deploy script
│       └─ release.sh       # Full release pipeline
│
├─ docker-compose.yml
│
└─ .github/workflows/       # CI pipelines

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CI Pipeline

GitHub Actions automatically:

1. installs dependencies
2. builds the Next.js application
3. builds the Docker image
4. pushes the image to GitHub Container Registry

Example image:

ghcr.io/intscription/gravity-log-web:latest

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Kubernetes Deployment

The application is deployed using Kubernetes with:

• Deployment
• Service
• Secrets

Example deployment:

kubectl apply -f infra/kubernetes/

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Local Deployment

Deploy the latest container image with one command:

./infra/scripts/release.sh

This script:

1. pushes code to GitHub
2. waits for CI to build the Docker image
3. deploys the new container to Kubernetes

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Running Locally

Start the web app

cd web
npm install
npm run dev

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Run with Docker

docker compose up --build

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Kubernetes Deployment

minikube start
kubectl apply -f infra/kubernetes/

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Environment Variables

Create .env.local inside web/:

NEXT_PUBLIC_SUPABASE_URL=
NEXT_PUBLIC_SUPABASE_ANON_KEY=

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Future Improvements

• Kubernetes Ingress
• Health probes
• GitOps deployment
• Monitoring (Prometheus + Grafana)

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Author

Kartik Sanil

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Why this project exists

This project demonstrates:

• full-stack application development
• containerization with Docker
• CI/CD automation
• Kubernetes deployment

It serves as both a fitness tool and a DevOps learning platform.