Dockerfile 執行 npm run build 時發生錯誤

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這是將 Angular 專案建立成 Docker image 的 Dockerfile

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FROM node:10.17.0 AS node-builder
WORKDIR /src
COPY . .
RUN npm install
RUN npm run build 

FROM nginx:alpine
COPY --from=node-builder /src/dist/my-app /usr/share/nginx/html

執行 docker build 時，在 Linux container 可以順利完成，但在 Windows container 跑到 npm run build 就掛了，會出現以下訊息：

Step 5/7 : RUN npm run build
 ---> Running in e9c6863fe498

> my-app@0.0.0 build /src
> ng build

Killed
npm ERR! code ELIFECYCLE
npm ERR! errno 137
npm ERR! my-app@0.0.0 build: `ng build`
npm ERR! Exit status 137
npm ERR!
npm ERR! Failed at the my-app@0.0.0 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
 
npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2019-11-11T11_11_11_111Z-debug.log
The command '/bin/sh -c npm run build' returned a non-zero code: 137

找了很多相關資料指出是記憶體不足所導致的問題，Window container 預設記憶體只有 1 GB，所以在 docker build 時多加 -m 參數將記憶體加大，問題解決

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docker build -t my-app -m 2g .

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