Let's Encrypt hook to deploy an SSL certificate onto a Synology NAS for nginx.

osiris.nepherte.com.sh

#!/usr/bin/env bash 
set -e

function deploy_to_synology {
	# The id of the certificate on the Synology NAS.
	local CERT_ID="crFPXQ"

	# The packages on the Synology NAS that use the certificate.
	local CERT_PKGS="system 4b4b117d-07d1-49db-9b42-7e1281cf3326"

	# The key to use to login to the Synology NAS.
	local SSH_KEY="/root/.ssh/osiris"

	# The user and hostname of the Synology NAS.
	local HOST="[email protected]"

	# Create import directory on Synoloy NAS.
	ssh -i $SSH_KEY $HOST mkdir -p /tmp/certificate/$CERT_ID

	# Upload the certificate to the Synology NAS.
	scp -i $SSH_KEY $RENEWED_LINEAGE/*.pem $HOST:/tmp/certificate/$CERT_ID 

	# Import the certificate into the Synology NAS.	
	ssh -i $SSH_KEY $HOST sudo /usr/local/bin/synology-import-ssl.sh $CERT_ID $CERT_PKGS
}

for domain in $RENEWED_DOMAINS; do
        case $domain in
        osiris.nepherte.com)
		deploy_to_synology
		;;
        esac
done