Workflows supports built-in environment variables that enable access to a workflow's environment information. Built-in environment variables require no declaration and are available in every workflow execution.
User-defined environment variables are not supported.
List of built-in environment variables
The following built-in environment variables are available:
GOOGLE_CLOUD_PROJECT_NUMBER: The workflow project's number.GOOGLE_CLOUD_PROJECT_ID: The workflow project's identifier.GOOGLE_CLOUD_LOCATION: The workflow's location.GOOGLE_CLOUD_WORKFLOW_ID: The workflow's identifier.GOOGLE_CLOUD_WORKFLOW_REVISION_ID: The workflow's revision identifier.
Accessing built-in environment variables
To access an environment variable, make a call to sys.get_env() function in an
expression, passing the name of the environment variable as a parameter. The
name of the environment variable must be passed as a string.
For example, the following step assigns the value of the environment variable
GOOGLE_CLOUD_PROJECT_ID to a workflow variable called projectID:
- getProjectID:
assign:
- projectID: ${sys.get_env("GOOGLE_CLOUD_PROJECT_ID")}