ホスト側でやること†

yum -y install docker-io
systemctl enable docker.service
systemctl start docker.service

docker pull centos:latest
docker run --privileged -d centos --name "init" /sbin/init

docker exec -it init bash 

コンテナ側でやること†

yum -y install httpd
cd /etc/httpd/  
rm -rf logs
mkdir logs 
chown apache.apache logs
echo hogehoge > /var/www/html/index.html
systemctl enable httpd.service
systemctl start httpd.service
exit

ホスト側でやること†

docker commit init apache 
docker run --privileged -p 180:80 -d apache /sbin/init

wget localhost:180

export†

docker ps

でPSID をチェック

docker export [PSID] > apache.tar

ホスト２側†

cat apache.tar | docker import - apache
docker run --privileged -p 180:80 -d apache /sbin/init
wget localhost:180