# Dagster stores run history, event logs, and schedules in PostgreSQL.
# Connection URL is read from the DAGSTER_POSTGRES_URL environment variable.
storage:
  postgres:
    postgres_url:
      env: DAGSTER_POSTGRES_URL

# Limit concurrent runs to avoid overwhelming the VM and database.
concurrency:
  default_op_concurrency_limit: 1

run_queue:
  max_concurrent_runs: 1