To get started with snake oil certs:
sudo apt install ssl-cert
cp /etc/ssl/certs/ssl-cert-snakeoil.pem ./data/home/.minio/certs/public.crt
sudo cp /etc/ssl/private/ssl-cert-snakeoil.key ./data/home/.minio/certs/private.key
sudo chown -R 1000:1000 data
docker-compose.overrride.yml
defines a seperate container
to copy certs from another container which runs proxy-companion,
rename them and sets permissions.