Dockerfile

# Build stage
FROM node:alpine AS builder

# Set working directory
WORKDIR /app

# Copy package files
COPY package.json yarn.lock ./

# Install dependencies
RUN yarn install --frozen-lockfile

# Copy source files
COPY . .

# Build application
RUN yarn build

# Production stage
FROM node:alpine AS runner

WORKDIR /app

# Set environment to production
ENV NODE_ENV production

# Copy necessary files from builder
COPY --from=builder /app/next.config.js ./
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json

# Create a non-root user
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs
RUN chown -R nextjs:nodejs /app

# Switch to non-root user
USER nextjs

# Expose the port the app runs on
EXPOSE 3000

# Start the application
CMD ["yarn", "start"]