Pierce the unspoken wall
docker-compose up -d
docker run -it --rm \
-v "`pwd`/letsencrypt/etc:/etc/letsencrypt" \
-v "`pwd`/letsencrypt/lib:/var/lib/letsencrypt" \
-v "/tmp/certbot/public_html:/tmp/certbot/public_html" \
certbot/certbot certonly --webroot -n --agree-tos -w /tmp/certbot/public_html --email cheng.zhong@shiant.com -d www.onioner.biz