[Linaro-validation] JSON file schema updated?

Hi,

Looks like the JSON file for LAVA job submission has just updated its schema, as I got this error below:

$ lava scheduler submit-job https://botao-sun@validation.linaro.org/RPC2/ botao_Juno_multinode_359.json ERROR: <Fault 400: "Decoding job submission failed: ValidationError: Object has unknown property 'role' but additional properties are disallowed object_expr='object.images[1]', schema_expr='schema.properties.images.items.additionalProperties').">

It's a multi-node job definition, but looks like the item "role" cannot be recognised right now. File attached in this email.

Would anyone can share a multi-node job definition under this new JSON schema?

Thanks.

Botao