json_schema: {
    "$schema": "http://json-schema.org/draft-04/schema#",
    "type": "object",
    "required": [
      "pipeline"
    ],
    "properties": {
      "title": {
        "type": "string"
      },
      "description": {
        "type": "string"
      },
      "environment": {
        "type": "object"
      },
      "schedule": {
        "type": "object",
        "properties": {
          "crontab": {
            "type": "string"
          }
        }
      },
      "pipeline": {
        "type": "array",
        "minLength": 1,
        "items": {
          "type": "object",
          "oneOf": [
            {
              "required": [
                "run"
              ]
            },
            {
              "required": [
                "flow"
              ]
            }
          ],
          "properties": {
            "run": {
              "type": "string"
            },
            "parameters": {
              "type": "object"
            },
            "cache": {
              "type": "boolean"
            },
            "validate": {
              "type": "boolean"
            }
          }
        }
      },
      "dependencies": {
        "type": "array",
        "items": {
          "type": "object",
          "maxProperties": 1,
          "properties": {
            "datapackage": {
              "type": "string",
              "format": "uri"
            },
            "pipeline": {
              "type": "string"
            }
          }
        }
      }
    }
  }
  