Dockerfile.prod

# Stage 1: Builder (all dependencies)
# preferred node version chosen here (Active LTS = 22 as of 10/2024)
FROM public.ecr.aws/docker/library/node:22.22-alpine3.23 AS builder
WORKDIR /app

# Copy dependencies from deps stage
COPY package*.json ./
RUN npm ci

COPY . .
# Set production environment
ENV NEXT_TELEMETRY_DISABLED 1
ENV NODE_ENV=production

# Set environment variables
ENV NEXT_PUBLIC_SERVER_ENDPOINT=$NEXT_PUBLIC_SERVER_ENDPOINT
ENV NEXT_PUBLIC_BASE_URL=$NEXT_PUBLIC_BASE_URL

# Build the application
RUN npm run build

RUN npm prune --omit=dev

# Stage 2: Runner
FROM public.ecr.aws/docker/library/node:22.1.0-alpine3.19 AS runner
WORKDIR /app

# Install bash so we can use session manager to attach to the container
# and perform container health checks
RUN apk add --no-cache bash curl

# Set production environment
ENV NEXT_TELEMETRY_DISABLED 1
ENV NODE_ENV=production

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

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

#Switch to non-root user
USER nextjs

# Ensure port 3000 is accessible to our system
EXPOSE 3000

# Start the application
CMD ["node", "server.js", "--hostname", "0.0.0.0", "--port", "3000"]