KimP0ssible-no
b6f6701eda
Add --max-old-space-size=1024 to the node process running the Next.js server. This caps V8's old-generation heap at 1024MB, forcing the garbage collector to run more aggressively as memory usage approaches the limit. Previously, users saw Next.js RSS grow to 4GB+. This was caused by a reference chain that prevented GC from freeing memory: AfterContext (vercel/next.js#89091) retained ServerResponse objects after client disconnect, which held zlib Transform streams (from compress: true), which allocated native C++ buffers outside V8's heap entirely — invisible to GC and uncapped by --max-old-space-size. Combined with the prior commit's fixes (compress: false moves gzip to nginx, httpBatchLink closes connections faster, socket-cleanup.cjs destroys zombie CLOSE_WAIT sockets every 60s), GC can now actually reclaim memory because: - zlib native buffers no longer exist (compress: false) - The AfterContext → ServerResponse reference chain is broken by socket cleanup destroying the underlying sockets - The JS heap is capped at 1024MB so V8 GCs more frequently for the memory it does control Also fixes the Dockerfile to copy socket-cleanup.cjs from the builder stage instead of the host context. Ref: https://github.com/homarr-labs/homarr/issues/3759
73 lines
2.4 KiB
Docker
73 lines
2.4 KiB
Docker
FROM node:24.14.1-alpine AS base
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FROM base AS builder
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RUN apk add --no-cache libc6-compat
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RUN apk update
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# Set working directory
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WORKDIR /app
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RUN apk add --no-cache libc6-compat curl bash
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RUN apk update
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COPY . .
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RUN corepack enable pnpm && pnpm install --recursive --frozen-lockfile
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# Copy static data as it is not part of the build
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COPY static-data ./static-data
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ARG SKIP_ENV_VALIDATION='true'
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ARG CI='true'
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ARG DISABLE_REDIS_LOGS='true'
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RUN corepack enable pnpm && pnpm build
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FROM base AS runner
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WORKDIR /app
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# gettext is required for envsubst, openssl for generating AUTH_SECRET, su-exec for running application as non-root
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RUN apk add --no-cache redis nginx bash gettext su-exec openssl
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RUN mkdir /appdata
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VOLUME /appdata
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# Enable homarr cli
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COPY --from=builder /app/packages/cli/cli.cjs /app/apps/cli/cli.cjs
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RUN echo $'#!/bin/bash\ncd /app/apps/cli && node ./cli.cjs "$@"' > /usr/bin/homarr
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RUN chmod +x /usr/bin/homarr
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# Don't run production as root
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RUN mkdir -p /var/cache/nginx && \
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mkdir -p /var/log/nginx && \
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mkdir -p /var/lib/nginx && \
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touch /run/nginx/nginx.pid && \
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mkdir -p /etc/nginx/templates /etc/nginx/ssl/certs
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COPY --from=builder /app/apps/nextjs/next.config.ts .
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COPY --from=builder /app/apps/nextjs/package.json .
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COPY --from=builder /app/apps/tasks/tasks.cjs ./apps/tasks/tasks.cjs
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COPY --from=builder /app/apps/websocket/wssServer.cjs ./apps/websocket/wssServer.cjs
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COPY --from=builder /app/node_modules/better-sqlite3/build/Release/better_sqlite3.node /app/build/better_sqlite3.node
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COPY --from=builder /app/packages/db/migrations ./db/migrations
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# Automatically leverage output traces to reduce image size
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# https://nextjs.org/docs/advanced-features/output-file-tracing
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COPY --from=builder /app/apps/nextjs/.next/standalone ./
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COPY --from=builder /app/apps/nextjs/socket-cleanup.cjs ./apps/nextjs/socket-cleanup.cjs
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COPY --from=builder /app/apps/nextjs/.next/static ./apps/nextjs/.next/static
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COPY --from=builder /app/apps/nextjs/public ./apps/nextjs/public
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COPY scripts/run.sh ./run.sh
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COPY --chmod=755 scripts/entrypoint.sh ./entrypoint.sh
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COPY packages/redis/redis.conf /app/redis.conf
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COPY nginx.conf /etc/nginx/templates/nginx.conf
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ENV DB_URL='/appdata/db/db.sqlite'
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ENV DB_DIALECT='sqlite'
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ENV DB_DRIVER='better-sqlite3'
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ENV AUTH_PROVIDERS='credentials'
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ENV REDIS_IS_EXTERNAL='false'
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ENV NODE_ENV='production'
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ENTRYPOINT [ "/app/entrypoint.sh" ]
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CMD ["sh", "run.sh"]
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