Dockerfile

# alpine saves 68MB over slim. The only native module is piscina's @napi-rs/nice, which has a musl
# build in the lockfile; revert this if a dependency ever ships glibc-only prebuilds.
FROM node:26-alpine

ENV NODE_ENV=production

WORKDIR /app

# Dependencies before source, so editing a command does not reinstall the tree.
# --ignore-scripts because package.json's `prepare` runs husky, which installs git hooks: it is a
# devDependency, so --omit=dev leaves it absent and the lifecycle script exits 127. Nothing this
# image runs needs an install script; the same reason imageServe sets ignore-scripts in .npmrc.
COPY package.json package-lock.json ./
# The sweep is safe because type stripping never type-checks: no .d.ts or .map is read at runtime.
RUN npm ci --omit=dev --ignore-scripts \
 && find node_modules \( -name "*.d.ts" -o -name "*.d.cts" -o -name "*.d.mts" -o -name "*.map" \) -delete

COPY . .

# A bind mount at /app/data hides the image's own copy, so keep a pristine one at a sibling path for
# scripts/seedData.ts to restore from. 1.7MB: the large dataUpdater caches are excluded by
# .dockerignore.
RUN cp -a /app/data /app/data-dist

USER node

# Overridden per service by compose. The bot is the sensible default for a bare `docker run`.
CMD ["node", "swgohBotShard.ts"]