Can someone help me on how to clean up containers and images which are 3 months older automatically by using crontab scheduling. Which type of method need to use for automation. I have manually tried deleting by using below commands and it worked but I need to automate it, to perform action for every 3 months without manual action.

docker image prune　 --force --filter “until=2020-01-01T00:00:00” docker container prune　 --force --filter “until=2020-01-01T00:00:00”