generic certbot script to update letsencrypt certificates

update.cert.sh

#!/bin/bash

COMPOSE_DIR='/home/user/foo'
COMPOSE_FILE="$COMPOSE_DIR/docker-compose.yml"
DOMAIN=foo.bar.com

docker pull certbot/certbot ; 
docker-compose -f $COMPOSE_FILE down;


sudo docker run \
    -it \
    --rm \
    -p 443:443 \
    -p 80:80 \
    --name certbot \
    -v "/etc/letsencrypt:/etc/letsencrypt" \
    -v "/var/lib/letsencrypt:/var/lib/letsencrypt" \
    certbot/certbot certonly \
	    --rsa-key-size 4096 \
	    --keep-until-expiring \
	    --standalone \
	    --preferred-challenges http \
	    -n \
	    --agree-tos \
	    -m foo@gmail.com \
	    -d $DOMAIN ;

sudo cp -v /etc/letsencrypt/live/$DOMAIN/fullchain.pem /etc/letsencrypt/live/$DOMAIN/privkey.pem $COMPOSE_DIR/certs/

docker-compose -f $COMPOSE_FILE up -d;