Dockerfile

# Stage 1: Dependencies
FROM node:22-alpine AS deps
WORKDIR /app

# Install dependencies needed for build
RUN apk add --no-cache libc6-compat git

# Copy package files
COPY package*.json ./

# Install dependencies (without husky)
RUN npm ci --ignore-scripts

# Stage 2: Builder
FROM node:22-alpine AS builder
WORKDIR /app

# Copy dependencies from deps stage
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Set environment variables for build
ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=production
ENV HUSKY=0
ENV NEXT_OUTPUT_STANDALONE=true

# Required for build-time environment variable validation
# These values are validated at runtime and can be placeholders for build
ENV NEXT_PUBLIC_SUPABASE_URL=https://placeholder.supabase.co
ENV SUPABASE_SERVICE_ROLE_KEY=placeholder_key_for_build_only
ENV GOOGLE_CLIENT_ID=placeholder_for_build
ENV GOOGLE_CLIENT_SECRET=placeholder_for_build
ENV NEXTAUTH_SECRET=placeholder_for_build
ENV JWT_SECRET=placeholder_for_build

# Build application
RUN npm run build

# Stage 3: Production image
FROM node:22-alpine AS runner
WORKDIR /app

# Set environment variables
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Create non-root user
RUN addgroup --system --gid 1001 nodejs && \
    adduser --system --uid 1001 nextjs

# Set proper permissions
RUN mkdir .next && chown nextjs:nodejs .next

# Copy only necessary files
COPY --from=builder --chown=nextjs:nodejs /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
COPY --from=builder --chown=nextjs:nodejs /app/data ./data

# Switch to non-root user
USER nextjs

# Expose port
EXPOSE 3000

# Set hostname
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:3000/ || exit 1

# Start the application
CMD ["node", "server.js"]