Main workflow

A workflow source file can contain only one main workflow and, as a best practice, we recommend placing your main workflow in a main block.

If a workflow has a subworkflow, the main workflow must be placed in a main block. Similarly, for a workflow to receive runtime arguments there must be a main block.

YAML

 main:  params: [MAP_NAME]  steps:  - STEP_NAME:  ...  ...

JSON

 {  "main": {  "params": [  "MAP_NAME"  ],  "steps": [  {  "STEP_NAME": {  ...  }  },  ...  ]  }  }

Inside the main workflow, you can define the steps you want and their order of execution using the Workflows syntax. Every workflow must have at least one step.