Special Environment Variables

Inside a DAG, you can use the following environment variables to access special values:

• DAG_EXECUTION_LOG_PATH: The path to the log file for the current step.

• DAG_SCHEDULER_LOG_PATH: The path to the log file for the scheduler.

• DAG_REQUEST_ID: The unique ID for the current execution request.

Example Usage

steps:
- name: print values
  command: bash
  script: |
    echo DAG_EXECUTION_LOG_PATH=$DAG_EXECUTION_LOG_PATH
    echo DAG_SCHEDULER_LOG_PATH=$DAG_SCHEDULER_LOG_PATH
    echo DAG_REQUEST_ID=$DAG_REQUEST_ID

Example Output

DAG_EXECUTION_LOG_PATH=/path/to/logs/special-envs/step1.20241001.22:31:29.167.0cf64f67.log
DAG_SCHEDULER_LOG_PATH=/path/to/logs/special-envs/start_special-envs.20241001.22:31:29.163.0cf64f67.log
DAG_REQUEST_ID=0cf64f67-a1d6-4764-b5e0-0ea92c3089e2