不知道大家有沒有遇過類似的狀況，就明明網路是通的，DNS 也是對的，但就是會出現下列的錯誤

#0 74.44 W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease  Temporary failure resolving 'archive.ubuntu.com'
#0 74.44 W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-updates/InRelease  Temporary failure resolving 'archive.ubuntu.com'
#0 74.44 W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-backports/InRelease  Temporary failure resolving 'archive.ubuntu.com'
#0 74.44 W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/focal-security/InRelease  Temporary failure resolving 'security.ubuntu.com'

 

 

這時候可以簡單地用這個方式，指定用 host 的網路，避開相關的問題喔

docker build --network=host  . -t your-image-name