I use the following configuration of the Mongo-DB and the IOT Lorawan agent in Docker-Compose.yml:

-----------------------------------------------------------------------------------
mongo-db:
image: mongo:3.6
expose:

• "27017"
  ports:
• "27017:27017"
  networks:
• default
  command: --bind_ip_all --smallfiles
  volumes:
• mongo-db:/data

iot-agent-lorawan:
image: fiware/iotagent-lorawan
depends_on:

• mongo-db
  expose:
• "4061"
  ports:
• "4061:4061"
  networks:
• default
  environment:
• "IOTA_CB_HOST=orion"
• "IOTA_CB_PORT=1026"
• "IOTA_NORTH_PORT=4061"
• "IOTA_REGISTRY_TYPE=mongodb"
• "IOTA_MONGO_HOST=mongo-db"
• "IOTA_MONGO_PORT=27017"
• "IOTA_MONGO_DB=iotagent-lorawan"
• "IOTA_PROVIDER_URL=http://iot-agent:4061"
  -----------------------------------------------------------------------------------

Chirpstack is used as the application server.
For the Device-Provisioning i Followed the user manual for the LoRaWan-IOT-Agent.
https://fiware-lorawan.readthedocs.io/en/latest/users_manual/index.html
The Device-Provisioning looks as follows:

-----------------------------------------------------------------------------------
curl localhost:4061/iot/devices s -S --header 'Content-Type: application/json' --header 'Accept: application/json' --header 'fiware-service: organisation' --header 'fiware-servicepath: /sensors' -d @ <<EOF
{
"devices": [
{
"device_id": "Elsys-ERS-Lite_001",
"entity_name": "Elsys-ERS-Lite_001",
"entity_type": "LoraDevice",
"timezone": "Europe/Berlin",
"attributes": [

,

,

],
"internal_attributes": {
"lorawan": {
"application_server":

,
"dev_eui": "17ffa804e38f29a8",
"app_eui": "0000000000000000",
"application_id": "2",
"application_key": "3cab62ae157ecf6a6288284fcfed2bbf",
"data_model": "application_server"
}
}
}
]
}
EOF
-----------------------------------------------------------------------------------

The Device-Provisioning is working in the sense, that im getting the correct sensor data.
But after submitting the Device-Provisioning im getting the following Error-Message:

-----------------------------------------------------------------------------------
time=2020-11-05T09:40:13.152Z | lvl=DEBUG | corr=7e6492a8-7418-4f69-bd47-d4f26f606078 | trans=7e6492a8-7418-4f69-bd47-d4f26f606078 | op=IoTAgentNGSI.MongoDBGroupRegister | srv=n/a | subsrv=n/a | msg=Looking for group params ["type"] with queryObj

| comp=IoTAgent
time=2020-11-05T09:40:13.153Z | lvl=DEBUG | corr=7e6492a8-7418-4f69-bd47-d4f26f606078 | trans=7e6492a8-7418-4f69-bd47-d4f26f606078 | op=IoTAgentNGSI.MongoDBGroupRegister | srv=n/a | subsrv=n/a | msg=Device group for fields [["type"]] not found: [

] | comp=IoTAgent
time=2020-11-05T09:40:13.153Z | lvl=ERROR | corr=7e6492a8-7418-4f69-bd47-d4f26f606078 | trans=7e6492a8-7418-4f69-bd47-d4f26f606078 | op=IoTAgentNGSI.Alarms | srv=n/a | subsrv=n/a | msg=Raising [MONGO-ALARM]:

| comp=IoTAgent
-----------------------------------------------------------------------------------

Furthermore i have to redo the Device-Provisioning everytime i restart my Docker-Compose since the Device-Provisioning is not getting stored in the Mongo-DB.
What can i do, to improve the situation?

With kind regards,
Felix

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[Created via e-mail received from: Felix Richter <felix.richter@student.uni-luebeck.de>]