Nginx-LE provides a docker container and tools to create an Nginx web server that automatically acquires and renews HTTPS certificates.
Nginx-LE uses the Lets Encrypt cli tool, Certbot, to acquire and renew certificates.
Nginx-LE ships as a Docker image which you can use with Docker or Docker Compose.
You can also use Nginx-LE cli tooling which allows you to configure and build Nginx-LE containers in a couple of seconds.
Nginx-LE is suitable for production systems, internal infrastructure and even when a developer needs a web server on their local machine.
This documentation tends to use the terms LetsEncrypt and Certbot somewhat interchangeably.
Nginx-LE supports both public facing web servers and private (internal) web servers such as those used by individual developers.
The key advantages of Nginx-LE are:
automatic certificate acquisition and renewal
no down time when renewing certificates
for Public facing servers, works with any DNS server
support for wildcard certificates
makes it easy for a developer to acquire a live certificate.