apk add --no-cache build-dependencies build-base openssl-dev autoconf g++ libtool make curl-dev libxml2-dev linux-headers
docker-php-ext-install -j 2 mysqli
docker-php-ext-install pdo_mysql
pecl install mongodb-1.2.2
echo "extension=mongodb.so" >> /usr/local/etc/php/conf.d/mongodb.ini
pecl install redis
echo "extension=redis.so" >> /usr/local/etc/php/conf.d/redis.ini
在容器里面执行之后再commit,封装成新镜像就好。