>>> $CLI bundle validate -o json

>>> jq .resources.jobs.my_job.tasks[0].task_key out.default.json
"task with spark version 13.2.x-scala2.11 and jar /path/to/jar"

>>> $CLI bundle validate -o json -t dev

>>> jq .resources.jobs.my_job.tasks[0].task_key out.dev.json
"task with spark version 14.2.x-scala2.11 and jar /newpath/to/jar"
policy_id and spark_conf.spark_random fields do not exist in dev target:

>>> jq .resources.jobs.my_job.job_clusters[0].new_cluster.policy_id out.dev.json
null