# astro-docs — Astro + Starlight documentation site
# Serves on 7701 via the Astro Node adapter (standalone). No proxy, no auth.

ARG NODE_VERSION=24

# ---------- base ----------
FROM node:24-alpine AS base
ENV NPM_CONFIG_UPDATE_NOTIFIER=false \
    NPM_CONFIG_FUND=false \
    NPM_CONFIG_AUDIT=false \
    ASTRO_TELEMETRY_DISABLED=1
WORKDIR /app

# ---------- dependencies (dev + prod, for the build) ----------
FROM base AS deps
COPY package.json package-lock.json* ./
RUN if [ -f package-lock.json ]; then npm ci --include=dev; else npm install --include=dev; fi

# ---------- dependencies (prod only, for the runtime) ----------
FROM base AS prod-deps
COPY package.json package-lock.json* ./
RUN if [ -f package-lock.json ]; then npm ci --omit=dev; else npm install --omit=dev; fi

# ---------- build ----------
FROM deps AS build
ENV NODE_ENV=production
COPY . .
RUN npm run build

# ---------- runtime ----------
FROM base AS runtime
ENV NODE_ENV=production \
    HOST=0.0.0.0 \
    PORT=7701
COPY --from=prod-deps --chown=node:node /app/node_modules ./node_modules
COPY --from=build --chown=node:node /app/dist ./dist
COPY --from=build --chown=node:node /app/package.json ./package.json
USER node
EXPOSE 7701
HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
  CMD node -e "fetch('http://127.0.0.1:'+(process.env.PORT||7701)+'/').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"
CMD ["node", "./dist/server/entry.mjs"]