前段交互错误

在DockerFile 设置build value

ARG DEBIAN_FRONTEND=noninteractive

ubuntu 添加源命令 add-apt-repository install

apt-get install -y software-properties-common

gem 换淘宝源

 gem sources --add https://ruby.taobao.org/ --remove http://rubygems.org/

进入运行的容器

docker exec -it cranky_curie /bin/bash

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