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Dockerfile

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+# syntax=docker/dockerfile:1
+
+# ============================================
+# Stage 1: Dependencies
+# ============================================
+FROM --platform=$BUILDPLATFORM node:22-alpine3.22 AS deps
+
+WORKDIR /app
+
+ENV NEXT_TELEMETRY_DISABLED=1
+ENV COREPACK_DEFAULT_TO_LATEST=0
+
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
+
+RUN corepack enable \
+ && corepack prepare pnpm@11.1.2 --activate \
+ && pnpm install --frozen-lockfile
+
+# ============================================
+# Stage 2: Builder
+# ============================================
+FROM --platform=$BUILDPLATFORM node:22-alpine3.22 AS builder
+
+WORKDIR /app
+
+ENV NEXT_TELEMETRY_DISABLED=1
+ENV COREPACK_DEFAULT_TO_LATEST=0
+
+RUN corepack enable \
+ && corepack prepare pnpm@11.1.2 --activate
+
+COPY --from=deps /app/node_modules ./node_modules
+
+COPY . .
+
+RUN pnpm build
+
+# ============================================
+# Stage 3: Runner
+# ============================================
+FROM node:22-alpine3.22 AS runner
+
+WORKDIR /app
+
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+ENV PORT=3000
+ENV HOSTNAME=0.0.0.0
+
+RUN addgroup -S nodejs -g 1001 \
+ && adduser -S nextjs -u 1001
+
+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
+COPY --from=builder --chown=nextjs:nodejs /app/messages ./messages
+
+USER nextjs
+
+EXPOSE 3000
+
+CMD ["node", "server.js"]