# docker image的製作與測試 --- os:ubuntu18.04 environment:python3.6,pip,docker --- * 建立資料夾 * 建立Dockerfile  第三行ADD後的. /app一定要空一格,否則無法執行 * 建立requiretments.txt讓docker知道要交付的檔案  * 做 app.py  * `sudo docker build -t app .`  * 用`sudo docker images`查看當前docker image的狀況  * `sudo docker run -p 4000:80 app`  * 用瀏覽器進去VM的server  
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