... and follow the instructions in the readme file.
https://github.com/oracle/docker-images/tree/master/OracleDatabase
cd docker-images/OracleDatabase/dockerfiles
http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
./buildDockerImage.sh -v 12.1.0.2 -e -p system
docker run --name=orcl12 -p 1521:1521 -p 5500:5500 oracle/database:12.1.0.2-ee
Run the following command in a separate window
docker exec -i -t orcl12 sqlplus system/system@localhost:1521