Docker Let's Encrypt

Ref:

• https://manas.tech/blog/2016/01/25/letsencrypt-certificate-auto-renewal-in-docker-powered-nginx-reverse-proxy.html
• https://miki725.github.io/docker/crypto/2017/01/29/docker+nginx+letsencrypt.html
• https://hub.docker.com/r/linuxserver/letsencrypt/
• http://www.automationlogic.com/using-lets-encrypt-and-docker-for-automatic-ssl/
• https://community.letsencrypt.org/t/tutorial-how-to-automate-lets-encrypt-using-docker-and-nginx/49917