Linux/Docker/Letsencrypt

docker-compose.yml

version: '3'

services:
  certbot:
    image: certbot/certbot:latest
    container_name: certbot
    volumes:
      - /srv/docker-data/certbot/webroot:/var/www
      - /srv/docker-data/certbot/etc:/etc/letsencrypt

domains.sh

#!/usr/bin/env bash

certdomains="domain1.com,\
domain2.com"

extend-domains.sh

#!/bin/bash
source domains.sh  #loading $certdomains

docker-compose run certbot certonly --dry-run --extend --agree-tos --email letsencrypt@aol.com --non-interactive --webroot --webroot-path /var/www -d $certdomains

Old Setup

certbot certonly --agree-tos --email email@aol.com --non-interactive --webroot --webroot-path --domains DOMAINS (--dry-run)