Docker-Swarm-Loadbalancer/php/nginx/letsencrypt.runit

#!/usr/bin/env bash
if [ -z "$LETSENCRYPT_DOMAINS" ]; then
  echo "LetsEncrypt not enabled"
  while true; do
    sleep infinity
  done
fi

if [ -z "$LETSENCRYPT_EMAIL" ]; then
  echo "LetsEncrypt not enabled - You must set LETSENCRYPT_EMAIL"
  while true; do
    sleep infinity
  done
fi

if [ "${LETSENCRYPT_MODE,,}" = "production" ]; then
    echo -e "LetsEncrypt is running against the \e[32mPRODUCTION\e[0m servers."
    LETSENCRYPT_MODE=
else
    echo -e "LetsEncrypt is running against the \e[31mSTAGING\e[0m servers."
    LETSENCRYPT_MODE=--test-cert
fi
echo -e "To change this, change the value of LETSENCRYPT_MODE"

# Give Nginx a moment to start before we kill it again.
sleep 3;

echo "Certbot is running for ${LETSENCRYPT_EMAIL} / ${LETSENCRYPT_DOMAINS}..."
certbot \
  certonly \
    --nginx \
    $LETSENCRYPT_TEST_MODE \
    -n \
    -m $LETSENCRYPT_EMAIL \
    --agree-tos \
    -d $LETSENCRYPT_DOMAINS
echo "Certbot complete!"

# replace the self-certs with these lovely new certs.
sed -i     "s|ssl_certificate .*|ssl_certificate     /etc/letsencrypt/live/${LETSENCRYPT_DOMAINS}/fullchain.pem;|g" /etc/nginx/sites-enabled/default-ssl
sed -i "s|ssl_certificate_key .*|ssl_certificate_key /etc/letsencrypt/live/${LETSENCRYPT_DOMAINS}/privkey.pem;|g" /etc/nginx/sites-enabled/default-ssl

echo "Reloading Nginx"
nginx -s reload
# Sleep for 24 hours and try again tomorrow with a renewal, just in case.
sleep 86400