=== variable file
>>> $CLI bundle validate -o json
{
  "job_cluster_key": "mlops_stacks-cluster",
  "new_cluster": {
    "node_type_id": "Standard_DS3_v2",
    "num_workers": 2
  }
}

=== variable file and variable flag
>>> $CLI bundle validate -o json --var=cluster_key=mlops_stacks-cluster-overriden
{
  "job_cluster_key": "mlops_stacks-cluster-overriden",
  "new_cluster": {
    "node_type_id": "Standard_DS3_v2",
    "num_workers": 2
  }
}

=== variable file and environment variable
>>> BUNDLE_VAR_cluster_key=mlops_stacks-cluster-overriden $CLI bundle validate -o json
{
  "job_cluster_key": "mlops_stacks-cluster-overriden",
  "new_cluster": {
    "node_type_id": "Standard_DS3_v2",
    "num_workers": 2
  }
}

=== variable has value in config file
>>> $CLI bundle validate -o json --target with_value
{
  "job_cluster_key": "mlops_stacks-cluster-from-file",
  "new_cluster": {
    "node_type_id": "default",
    "num_workers": 1
  }
}

=== file has variable that is complex but default is string
>>> errcode $CLI bundle validate -o json --target complex_to_string
Error: variable cluster_key is not of type complex, but the value in the variable file is a complex type


Exit code: 1
{
  "job_cluster_key": "${var.cluster_key}",
  "new_cluster": {
    "node_type_id": "${var.cluster.node_type_id}",
    "num_workers": "${var.cluster_workers}"
  }
}

=== file has variable that is string but default is complex
>>> errcode $CLI bundle validate -o json --target string_to_complex
Error: variable cluster is of type complex, but the value in the variable file is not a complex type


Exit code: 1
{
  "job_cluster_key": "${var.cluster_key}",
  "new_cluster": {
    "node_type_id": "${var.cluster.node_type_id}",
    "num_workers": "${var.cluster_workers}"
  }
}

=== variable is required but it's not provided in the file
>>> errcode $CLI bundle validate -o json --target without_defaults
Error: no value assigned to required variable cluster. Assignment can be done using "--var", by setting the BUNDLE_VAR_cluster environment variable, or in .databricks/bundle/<target>/variable-overrides.json file


Exit code: 1
{
  "job_cluster_key": "${var.cluster_key}",
  "new_cluster": {
    "node_type_id": "${var.cluster.node_type_id}",
    "num_workers": "${var.cluster_workers}"
  }
}