Basic Nginx and certbot configuration for ACME Challenge validation in order to proof a domain ownership in a VPS instance (AWS-EC2, DO-Droplet, Azure-VM, etc.).

Replace subdomain.example.com and [email protected] by your own domain and email address in the docker-compose.yml file.

Run the project:

docker compose up --build

If validation success, certificates will be created inside a new directory named certbot, these cerificates can be used in upcomming Nginx server configurations with TLS encrytion enabled (https).

certbot contaner will renew your cerficates every 12 hours. Certbot will notify you if unrenewed certificates.

Test certbot certificate renewal:

docker exec certbot certbot renew --dry-run