Docker Build Optimization and Space Management

[C2100-PR]

Docker Build Optimization

1. Cleanup Commands

# Remove all unused containers, networks, images and volumes
docker system prune --volumes -f

# Remove all unused images
docker system prune -a -f

2. .dockerignore Configuration

Create a .dockerignore file with:

# Node
node_modules
npm-debug.log
yarn-debug.log
yarn-error.log

# Development
.git
.gitignore
.env
.env.local
.env.*.local
*.md
.vscode
.idea

# Testing
coverage
.nyc_output
test

# Build
dist
build
.next
out

# Misc
.DS_Store
*.log

3. Optimized Dockerfile

# Use slim base image
FROM node:18-slim

# Set working directory
WORKDIR /app

# Copy only package files first
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production

# Copy only necessary files
COPY src/ ./src/
COPY public/ ./public/

# Set environment
ENV PORT=8080
EXPOSE 8080

# Start the app
CMD ["node", "src/server.js"]

4. Build Command with Optimization

# Build with optimized options
docker build --no-cache --compress -t disc-assessment .

Steps to Implement:

1. Run cleanup commands
2. Add .dockerignore file
3. Update Dockerfile
4. Rebuild with optimized settings

Please implement these changes to resolve the disk space issue.