medium10 pts · first answer countsdockerci-cd

Slow Docker builds on every change

Every one-line code change makes the Docker build reinstall all npm packages. What change speeds it up?

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

A.COPY package.json and package-lock.json, RUN npm ci, then COPY the rest of the sourceB.Replace npm ci with npm installC.Use the node:latest image instead of a pinned tag so the base layer is always freshly cachedD.Combine all commands into a single RUN line

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