tests/templates/rgsubonlydeploy.parameters.json

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentParameters.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "resourceGroupName": {
            "value": "TestSubOnly-azopsrg"
        },
        "location": {
            "value": "northeurope"
        }
    }
}