bundle: name: complex-transitive variables: catalog: default: hive_metastore spark_conf: default: "spark.databricks.sql.initial.catalog.name": ${var.catalog} etl_cluster_config: type: complex default: spark_version: 14.3.x-scala2.12 runtime_engine: PHOTON spark_conf: ${var.spark_conf} resources: clusters: my_cluster: ${var.etl_cluster_config}