docker pull  wordpress:latest
docker pull mysql:latest
docker run --name mysqlwp -e MYSQL_ROOT_PASSWORD=wordpressdocker \
 -e MYSQL_DATABASE=wordpress \
 -e MYSQL_USER=wordpress \
 -e MYSQL_PASSWORD=wordpresspwd \
 -d mysql
docker run --name wordpress --link mysqlwp:mysql -p 80:80 \
 -e WORDPRESS_DB_NAME=wordpress \
 -e WORDPRESS_DB_USER=wordpress \
 -e WORDPRESS_DB_PASSWORD=wordpresspwd \
 -d wordpress