1、设置给中国源
sed -i "s@http://deb.debian.org@http://mirrors.aliyun.com@g" /etc/apt/sources.list && rm -Rf /var/lib/apt/lists/* && cat /etc/apt/sources.list
2、安装扩展
apt-get update && \ apt-get install -y libfreetype6-dev libjpeg62-turbo-dev && \ docker-php-ext-install mysqli && \ docker-php-ext-install mbstring && \ docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ && \ docker-php-ext-install gd