ARG NODE_BASE_IMAGE=node:22.23.2-alpine3.24@sha256:c610fcdfb1d5b4740dd70c284ed3cb16bb857e0f7166196e36a5501df7a3aa32

FROM ${NODE_BASE_IMAGE} AS deps
WORKDIR /app

COPY package.json package-lock.json ./
RUN npm ci --ignore-scripts

FROM ${NODE_BASE_IMAGE} AS build
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

COPY --from=deps /app/node_modules ./node_modules
COPY package.json package-lock.json next.config.mjs tsconfig.json next-env.d.ts ./
COPY app ./app
COPY lib ./lib
COPY public ./public

RUN npm run build

FROM ${NODE_BASE_IMAGE} AS runner
WORKDIR /app

ARG BUILD_VERSION=1.0.4
ARG BUILD_REVISION=local

ENV NODE_ENV=production
ENV HOSTNAME=0.0.0.0
ENV PORT=3000
ENV NEXT_TELEMETRY_DISABLED=1
ENV CERTSCOPE_BUILD_REVISION=$BUILD_REVISION

LABEL org.opencontainers.image.revision=$BUILD_REVISION \
  org.opencontainers.image.version=$BUILD_VERSION \
  org.opencontainers.image.title="CertScope" \
  org.opencontainers.image.description="Explainable DNS, TLS and HTTP posture inspection with hardened SSRF boundaries."

RUN addgroup --system --gid 1001 nodejs \
  && adduser --system --uid 1001 nextjs

# The runtime does not need package managers. Upgrade the pinned Alpine layer
# to the current security revision, then remove npm/npx/corepack from the
# attack surface scanned and shipped with production.
RUN apk upgrade --no-cache \
  && rm -rf /usr/local/lib/node_modules/npm /usr/local/lib/node_modules/corepack \
  && rm -f /usr/local/bin/npm /usr/local/bin/npx /usr/local/bin/corepack

COPY --from=build --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=build --chown=nextjs:nodejs /app/.next/static ./.next/static
COPY --from=build --chown=nextjs:nodejs /app/public ./public

USER nextjs

EXPOSE 3000

HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
  CMD wget -q -O /dev/null --timeout=4 http://127.0.0.1:3000/api/health || exit 1

CMD ["node", "server.js"]