Troubleshooting

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If you encounter issues with the Device Provisioning Service or Hub, follow these steps to enable debug logs in the configuration:

  1. Update the YAML configuration file with the following content:

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            coapgateway:
      log:
        dumpBody: true
        level: debug
    deviceProvisioningService:
      log:
        dumpBody: true
        level: debug
        
  2. Apply the helm configuration by running the following commands:

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            helm upgrade -i -n plgd --create-namespace -f ./withUpdatedMock.yaml hub plgd/plgd-hub
        
  3. Restart the pods by deleting them:

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            kubectl -n plgd delete $(kubectl -n plgd get pods -o name | grep "plgd-hub")
        

These steps will enable debug logging and restart the necessary components, providing more detailed information for troubleshooting the issues with the Device Provisioning Service or Hub.

If your device is unable to connect to DPS, follow these steps:

  1. Check the DPS logs by running the following command:

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            kubectl -n plgd logs $(kubectl -n plgd get pods -o name | grep "plgd-hub-device-provisioning-service")
        
  2. Check the device logs in the console.

    In most cases, the issue lies in the certificate chain or resolving the domain name. If it’s a certificate chain problem, do the following:

    • Verify that the certificate chain is in the correct order, with the root CA as the last certificate in the chain.
    • Ensure that the certificate chain is set in the deviceProvisioningService.enrollmentGroups[].attestationMechanism.x509.certificateChain field.
    • Confirm that the device certificates are stored in the correct files: $HOME/plgd_certs/device/pki_certs/mfgkey.pem, $HOME/plgd_certs/device/pki_certs/mfgkey.pem, $HOME/plgd_certs/device/pki_certs/dpsca.pem.

If your device is unable to connect to the Hub, follow these steps:

  1. Check the Hub logs by running the following command:

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            kubectl -n plgd logs $(kubectl -n plgd get pods -o name | grep "coap-gateway")
        
  2. Check the device logs in the console.

    In most cases, the issue is related to resolving the domain name or a misconfigured provider. If it’s a provider configuration problem, do the following:

    • Verify that the provider configuration is set in the deviceProvisioningService.enrollmentGroups[].hub.authorization.provider field.
    • Compare the provider configuration in DPS with the coap-gateway provider configuration by running the following command:
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            kubectl -n plgd get $(kubectl -n plgd get configmap -o name | grep "coap-gateway") -o yaml | yq '.data["service.yaml"]' | yq '.apis.coap.authorization.providers'
        

If your device can connect to the DPS service but is unable to retrieve certificates from the certificate authority or obtain an authorization code due to lack of trust, follow these steps:

  • For the certificate authority, you need to append the certificate authority for that endpoint to the global.extraCAPool.authorization and set deviceProvisioningService.enrollmentGroups[].hub.certificateAuthority.grpc.tls.caPool to /certs/extra/ca.crt as described in the Customize client certificates for DPS section. Alternatively, you can create an extra volume, mount it, and set the deviceProvisioningService.enrollmentGroups[].hub.certificateAuthority.grpc.tls.caPool field to the CA in that volume.
  • For the authorization provider, follow similar steps as for the certificate authority, but set enrollmentGroups.[].hub.authorization.provider.http.tls.caPool.
May 18, 2023

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