iframe-proxy | Sunbelt Computer Software

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# SRC https://github.com/vercel/next.js/blob/canary/examples/with-docker/Dockerfile
# ============================================
# Stage 1: Dependencies Installation Stage
# ============================================
# IMPORTANT: Node.js Version Maintenance
# This Dockerfile defaults to Node.js 24.14.1-slim to match the repo's Node 24 baseline.
# To ensure security and compatibility, update the NODE_VERSION ARG when the project's Node baseline changes.
ARG NODE_VERSION=24.14.1-slim
FROM node:${NODE_VERSION} AS dependencies
# Set working directory
WORKDIR /app
# Copy package-related files first to leverage Docker's caching mechanism
COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* .npmrc* ./
# Install project dependencies with frozen lockfile for reproducible builds
RUN --mount=type=cache,target=/root/.npm \
  --mount=type=cache,target=/usr/local/share/.cache/yarn \
  --mount=type=cache,target=/root/.local/share/pnpm/store \
  if [ -f package-lock.json ]; then \
  npm ci --no-audit --no-fund; \
  elif [ -f yarn.lock ]; then \
  corepack enable yarn && yarn install --frozen-lockfile --production=false; \
  elif [ -f pnpm-lock.yaml ]; then \
  corepack enable pnpm && pnpm install --frozen-lockfile; \
  echo "No lockfile found." && exit 1; \
# ============================================
# Stage 2: Build Next.js application in standalone mode
# ============================================
FROM node:${NODE_VERSION} AS builder
# Set working directory
WORKDIR /app
# Copy project dependencies from dependencies stage
COPY --from=dependencies /app/node_modules ./node_modules
# Copy application source code
ENV NODE_ENV=production
# Next.js collects completely anonymous telemetry data about general usage.
# Learn more here: https://nextjs.org/telemetry
# Uncomment the following line in case you want to disable telemetry during the build.
# ENV NEXT_TELEMETRY_DISABLED=1
# Build Next.js application
# If you want to speed up Docker rebuilds, you can cache the build artifacts
# by adding: --mount=type=cache,target=/app/.next/cache
# This caches the .next/cache directory across builds, but it also prevents
# .next/cache/fetch-cache from being included in the final image, meaning
# cached fetch responses from the build won't be available at runtime.
RUN if [ -f package-lock.json ]; then \
  npm run build; \
  elif [ -f yarn.lock ]; then \
  corepack enable yarn && yarn build; \
  elif [ -f pnpm-lock.yaml ]; then \
  corepack enable pnpm && pnpm build; \
  echo "No lockfile found." && exit 1; \
# ============================================
# Stage 3: Run Next.js application
# ============================================
FROM node:${NODE_VERSION} AS runner
# Set working directory
WORKDIR /app
# Set production environment variables
ENV NODE_ENV=production
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"
# Next.js collects completely anonymous telemetry data about general usage.
# Learn more here: https://nextjs.org/telemetry
# Uncomment the following line in case you want to disable telemetry during the run time.
# ENV NEXT_TELEMETRY_DISABLED=1
# Copy production assets
COPY --from=builder --chown=node:node /app/public ./public
# Set the correct permission for prerender cache
RUN mkdir .next
RUN chown node:node .next
# Automatically leverage output traces to reduce image size
# https://nextjs.org/docs/advanced-features/output-file-tracing
COPY --from=builder --chown=node:node /app/.next/standalone ./
COPY --from=builder --chown=node:node /app/.next/static ./.next/static
# If you want to persist the fetch cache generated during the build so that
# cached responses are available immediately on startup, uncomment this line:
# COPY --from=builder --chown=node:node /app/.next/cache ./.next/cache
# Switch to non-root user for security best practices
# Expose port 3000 to allow HTTP traffic
EXPOSE 3000
# Start Next.js standalone server
CMD ["node", "server.js"]
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