. . . . . . . . . . . . . . . . . . . . . . . . . . 111 16 Customize Runtime Module 115 16.1 Protocol Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . official module baetyl-hub provides message subscription and publishing functions based on the MQTT protocol, and supports four access methods: TCP, SSL, WS, and WSS; • The official module baetyl-remote-mqtt stand-alone version of the message subscription and distribution center that uses the MQTT3.1.1 protocol to provide reliable messaging services in low-bandwidth, unreliable networks. It acts as a mes-

official module baetyl-hub provides message subscription and publishing functions based on the MQTT protocol [http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt- v3.1.1-os.html], and supports four access stand-alone version of the message subscription and distribution center that uses the MQTT3.1.1 protocol to provide reliable messaging services in low-bandwidth, unreliable networks. It acts as a messaging supports 4 access methods: TCP, SSL (TCP + SSL), WS (Websocket) and WSS (Websocket + SSL). The MQTT protocol support is as follows: Support Connect, Disconnect, Subscribe, Publish, Unsubscribe, Ping, etc

. . . . . . . . . . . . . . . . . . . . . . . . . . 101 15 Customize Runtime Module 105 15.1 Protocol Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . official module baetyl-hub provides message subscription and publishing functions based on the MQTT protocol, and supports four access methods: TCP, SSL, WS, and WSS; • The official module baetyl-remote-mqtt stand-alone version of the message subscription and distribution center that uses the MQTT3.1.1 protocol to provide reliable messaging services in low-bandwidth, unreliable networks. It acts as a mes-

third-party libraries for Node runtime Import Lodash third-party libraries Customize Runtime Module Protocol Convention Configuration Convention Start/Stop Convention Customize Module Directory Convention official module baetyl-hub provides message subscription and publishing functions based on the MQTT protocol [http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt- v3.1.1-os.html], and supports four access stand-alone version of the message subscription and distribution center that uses the MQTT3.1.1 protocol to provide reliable messaging services in low-bandwidth, unreliable networks. It acts as a messaging

MQTT Edge Node IOT Device Edge Cloud Edge to Cloud Protocol • IOT Protocol : e.g. MQTT Or • Cloud Protocol: e.g. Http Communication Protocol Device � Cloud MQTT Device � Edge MQTT Edge � Cloud Management Edge/Cloud Cluster Management KubeBus Architecture --Edge Node Management • KubeBus Protocol Stack • L2/L3/L4 over TCP • KubeBus Client/Server Proxy to proxy Http packets • Multiplex https

MQTT Edge Node IOT Device Edge Cloud Edge to Cloud Protocol • IOT Protocol : e.g. MQTT Or • Cloud Protocol: e.g. Http Communication Protocol Device � Cloud MQTT Device � Edge MQTT Edge � Cloud Management Edge/Cloud Cluster Management KubeBus Architecture --Edge Node Management • KubeBus Protocol Stack • L2/L3/L4 over TCP • KubeBus Client/Server Proxy to proxy Http packets • Multiplex https