The technical documentation of the nodered microservice, which wires together hardware devices, APIs and online services.

Node-RED is a programming tool for wiring together hardware devices, APIs and online services in new and interesting ways. It provides a browser-based editor that makes it easy to wire together flows using the wide range of nodes in the Node-RED library.

How it works

Node-RED is a JavaScript-based tool that can be used to create flows that interact with the other microservices in the United Manufacturing Hub or external services.

See our guides for Node-RED to learn more about how to use it.

Kubernetes resources

  • StatefulSet: united-manufacturing-hub-nodered
  • Service:
    • External LoadBalancer: united-manufacturing-hub-nodered-service at port 1880
  • ConfigMap:
    • Configuration: united-manufacturing-hub-nodered-config
    • Flows: united-manufacturing-hub-nodered-flows
  • Secret: united-manufacturing-hub-nodered-secrets
  • PersistentVolumeClaim: united-manufacturing-hub-nodered-claim


You can enable the nodered microservice and decide if you want to use the default flows in the _000_commonConfig.dataprocessing.nodered section of the Helm chart values.

All the other values are set by default and you can find them in the Danger Zone section of the Helm chart values.

Environment variables

Environment variables
Variable nameDescriptionTypeAllowed valuesDefault
NODE_RED_ENABLE_SAFE_MODEEnable safe mode, useful in case of broken flowsbooleantrue, falsefalse
TZThe timezone used by Node-REDstringAnyBerlin/Europe