进入php docker后，运行以下命令进行安装。

 

apt update
apt install -y libwebp-dev libjpeg-dev libpng-dev libfreetype6-dev

docker-php-source extract

docker-php-ext-configure gd \
--with-jpeg=/usr/include \
--with-freetype=/usr/include/

docker-php-ext-install gd

docker-php-ext-enable gd