yum install -y https://get.docker.com/rpm/1.7.1/centos-6/RPMS/x86_64/docker-engine-1.7.1-1.el6.x86_64.rpm
 service docker start
 chkconfig docker on

docker pull php:7.2-fpm

[global]
daemonize = no
[www]
listen = 9001

php_value[session.save_handler] = redis
php_value[session.save_path] = tcp://127.0.0.1:6379
php_value[post_max_size] = 20M
php_value[upload_max_filesize] = 20M
php_value[date.timezone] = Asia/Shanghai
php_value[opcache.enable] = 1
php_value[opcache.enable_cli] = 1

docker run -d -v /var/www/html:/var/www/html -v /usr/local/docker-php7/zz-docker.conf:/usr/local/etc/php-fpm.d/zz-docker.conf --net=host --name php7.2 php:7.2-fpm

docker exec php7.2 apt-get update -y
docker exec php7.2 apt-get install -y libfreetype6-dev
docker exec php7.2 apt-get install -y libjpeg62-turbo-dev
docker exec php7.2 apt-get install -y libpng-dev
docker exec php7.2 docker-php-ext-install pdo_mysql
docker exec php7.2 docker-php-ext-install mysqli
docker exec php7.2 docker-php-ext-install iconv 
docker exec php7.2 docker-php-ext-install gd
docker exec php7.2 docker-php-ext-install mbstring
docker exec php7.2 docker-php-ext-install opcache
#顺便改下配置
docker exec php7.2 mv /usr/local/etc/php/php.ini-production /usr/local/etc/php/php.ini

#进入容器里的命令行
docker exec -it php7.2 sh 
docker-php-source extract
curl -L -o /tmp/redis.tar.gz https://github.com/phpredis/phpredis/archive/4.2.0.tar.gz
tar -zxvf /tmp/redis.tar.gz -C /usr/src/php/ext
mv /usr/src/php/ext/phpredis-* /usr/src/php/ext/phpredis
docker-php-ext-install phpredis
#到这里按ctr+p 和 ctrl+q 以退出容器
docker restart php7.2