1.sudo docker pull mediawiki
2.sudo docker run –name mediawiki -p 7089:80 -d mediawiki
3.save the LocalSettings.php’s file and copy to mymediawiki/html’s directory.
4.mkdir mymediawiki’s dir
5.write Dockerfile just like bellow.

FROM mediawiki
COPY html/LocalSettings.php /var/www/html/

5.build and run.

sudo docker build -t mymediawiki .
sudo docker run --name mymediawiki -p 7089:80 -d mymediawiki

6.check it.