[greengrass] how to add environment variable

Question

I need to deploy the kvs program to the device. I don't know how to add environment variables when deploying with greengrass. Is there an example?
like: “setEnv”: "export LD_LIBRARY_PATH={artifacts:path}/lib" // i use this way,but wrong

is there any type of use greengrass deploy kvs to device?

Answer

Hi. You can't do an export like that. Here is a JSON recipe example for `Setenv`: https://github.com/awslabs/aws-greengrass-labs-kvs-stream-uploader/blob/main/recipes/aws.greengrass.labs.kvs.stream.uploader-sample.json#L27

And a YAML example: https://github.com/awslabs/aws-greengrass-labs-jupyterlab/blob/main/recipes/aws.greengrass.labs.jupyterlab.yaml#L30

> is there any type of use greengrass deploy kvs to device?

If I understand your question correctly, this component is likely of interest. It builds the KVS C SDK, links it into the component, and publishes the component for deployment: https://github.com/awslabs/aws-greengrass-labs-webrtc

Answer

I think you need to add **RequiresPrivilege: true**, and this works for me
```
  Run:
    RequiresPrivilege: true
    Script: ""
    Setenv:
       LD_LIBRARY_PATH": "{artifacts:path}/lib
```

[greengrass] how to add environment variable

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