Files
rengine/frontend/Dockerfile.dev
T
Yogesh OjhaandClaude Opus 5 06fa55824d perf(docker): build the worker image once and keep the go cache out of it
Four compose services declared their own build against worker/Dockerfile, so
buildkit shared the solve and then exported and unpacked the same image once per
tag. Compose does not dedupe identical targets, measured on a three-service
probe. Under the containerd snapshotter the unpack is a second full pass over
every byte, as expensive as the export.

The go module and build caches were baked into layers: `go install nuclei` made
a 2.66GB layer for a 190MB binary, and /root/go/pkg/mod (3.4GB) plus
/root/.cache/go-build (3.3GB) were half the 13.1GB image.

- the tools build in a throwaway stage with --mount=type=cache on GOCACHE and
  GOMODCACHE; the runtime stage copies /out/bin alone
- worker-default builds rengine-worker:latest; worker-beat, ct-stream and
  flower reference it. Building one of those alone now needs worker-default
  built first
- the runtime stage drops the go toolchain, build-essential and libpcap-dev;
  uv sync needs no compiler. libpcap0.8t64 stays, naabu dlopens it for SYN so
  ldd shows nothing and the loss would only surface at scan time
- -ldflags=-s trims the binaries 650MB -> 495MB
- only shared/ and tools/ are copied, being file:// path deps; stages/,
  reports/, interest/, toolbox/, mcp/, connectors/ and binaries/ are mounted
- the frontend fetches tech icons above COPY frontend/. ., so a source edit no
  longer re-runs the tarball download
- .dockerignore excludes .git (271MB) and node_modules (320MB); COPY frontend/.
  . had been copying the host's node_modules over the npm ci result

worker image 13.1GB -> 2.41GB, frontend 1.38GB -> 969MB
worker export+unpack 453s across three tags -> 55s across one
editing stages/ or reports/ now rebuilds nothing (1s), frontend/src 4s,
shared/ 19s; cold build 475s -> 414s, still dominated by go compilation

Tool versions diff identical against the old image, naabu SYN proven against a
live listener, 8/8 services up, 853 tests green, ruff clean.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015fWjAbvFBdmsmVeMcwaaR9
2026-09-13 19:00:40 +05:30

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Docker

FROM node:22-slim
WORKDIR /app
COPY VERSION ./VERSION
COPY frontend/package*.json ./
RUN npm ci
COPY frontend/scripts/fetch-tech-icons.mjs ./scripts/
RUN node scripts/fetch-tech-icons.mjs
COPY frontend/. .
EXPOSE 5173
CMD ["npm", "run", "dev"]