Sometimes you may need to make your machine appear busy to avoid unnecessary trouble, such as with Oracle's free machines.Oracle Always_Free_Resources
docker run -itd --name=lookbusy3 --restart=always --cpus 0.2 acemarx/lookbusy
or build by yourself:
git clone https://github.com/imacemarx/docker-lookbusy.git
docker build -t myimage .
docker run -itd --restart=always --cpus 0.2 myimage