medium10 pts · first answer countsdockerperformance

Docker rebuild reinstalls everything

Every one-line code change makes this image reinstall all npm packages. How do you fix it?

FROM node:22-slim
WORKDIR /app
COPY . .
RUN npm ci
CMD ["node", "server.js"]

A.Replace npm ci with npm install, which reuses packages already present in node_modules between image buildsB.Build with --no-cache every timeC.Copy package.json and package-lock.json first, run npm ci, and only then COPY the rest of the sourceD.Switch to a larger base image such as node:22

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