Update 130-docker.mdx #7004
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Update 130-docker.mdx #7004
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If we run `npm ci` after `COPY . .`, packages will need to be reinstalled upon every build since `COPY . .` directive invalidates the cache if any source file changes. Having `RUN npm ci` before `COPY . .` ensures that npm packages don't get reinstalled if `packages.json` doesn't change.
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If we run
npm ciafterCOPY . ., packages will need to be reinstalled upon every build sinceCOPY . .directive invalidates the cache if any source file changes. HavingRUN npm cibeforeCOPY . .ensures that npm packages don't get reinstalled ifpackages.jsondoesn't change.