Before building, install the following software.

• OpenJDK 11
• Maven

After installing the software, execute the following command.

$ mvn wrapper:wrapper

To subscribe the MQTT broker(AWS IoT Core), need to identify the client. You have to copy the certificates to the resource directory.

• AmazonRootCA1.pem: AWS CA Certificate
• [ClientCert]-certificate.pem.crt: the client certificate
• [ClientCert]-private.pem.key: the private key for the client certificate

Modify the application.properties file.

• mp.messaging.incoming.mqtt-broker.host
• mp.messaging.incoming.mqtt-broker.client-id
• mp.messaging.incoming.mqtt-broker.ssl.keystore.location
• mp.messaging.incoming.mqtt-broker.ssl.keystore.password
• tt.rest-client.keys=[KEY1],[KEY2],...,[KEYn]
• tt.rest-client.[KEYn].url

$ ./mvnw package

To run the proxy service, execute this command.

$ /usr/bin/java -jar <BASE_DIR>/target/quarkus-app/quarkus-run.jar

$ cp -a  homeiot-proxy.service /etc/systemd/system/
$ systemctl enable homeiot-proxy

To run as a systemd service, execute the following command.

$ systemctl start homeiot-proxy

You can view the journal logs.

$ journalctl -u homeiot-proxy.service --no-pager --since="2023-01-27 18:00:00"