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Minimal Configuration

Smallest working configuration ( although the actual smallest is no file at all and using only environment variables for MQTT )

mqtt:
  host: ${oc.env:MQTT_HOST,"127.0.0.1"}
  port: ${oc.env:MQTT_PORT,1883}
  user: ${oc.env:MQTT_USER}
  password: ${oc.env:MQTT_PASS}

node:
  name: dockernuc