Pass custom options to your Flex template

main.tf

resource "google_dataflow_flex_template_job" "big_data_job" {
  provider                = google-beta
  name                    = "dataflow-flextemplates-job"
  container_spec_gcs_path = "gs://my-bucket/templates/template.json"
  parameters = {
    i_want_streaming_engine = true
  }
}