variables.md

Workflow Variables

The following variables are made available to reference various metadata of a workflow:

All Templates:

Variable	Description
inputs.parameters.<NAME>	Input parameter to a template
inputs.parameters	All input parameters to a template as a JSON string
inputs.artifacts.<NAME>	Input artifact to a template

Steps Templates:

Variable	Description
steps.<STEPNAME>.ip	IP address of a previous daemon container step
steps.<STEPNAME>.status	Phase status of any previous script step
steps.<STEPNAME>.outputs.result	Output result of any previous script step
steps.<STEPNAME>.outputs.parameters.<NAME>	Output parameter of any previous step
steps.<STEPNAME>.outputs.artifacts.<NAME>	Output artifact of any previous step

DAG Templates:

Variable	Description
tasks.<TASKNAME>.ip	IP address of a previous daemon container task
tasks.<TASKNAME>.status	Phase status of any previous task step
tasks.<TASKNAME>.outputs.result	Output result of any previous script task
tasks.<TASKNAME>.outputs.parameters.<NAME>	Output parameter of any previous task
tasks.<TASKNAME>.outputs.artifacts.<NAME>	Output artifact of any previous task

Container/Script Templates:

Variable	Description
pod.name	Pod name of the container/script
inputs.artifacts.<NAME>.path	Local path of the input artifact
outputs.artifacts.<NAME>.path	Local path of the output artifact
outputs.parameters.<NAME>.path	Local path of the output parameter

Loops (withItems / withParam)

Variable	Description
item	Value of the item in a list
item.<FIELDNAME>	Field value of the item in a list of maps

Global:

Variable	Description
workflow.name	Workflow name
workflow.namespace	Workflow namespace
workflow.uid	Workflow UID. Useful for setting ownership reference to a resource, or a unique artifact location
workflow.parameters.<NAME>	Input parameter to the workflow
workflow.outputs.parameters.<NAME>	Global parameter in the workflow
workflow.outputs.artifacts.<NAME>	Global artifact in the workflow
workflow.annotations.<NAME>	Workflow annotations
workflow.labels.<NAME>	Workflow labels
workflow.creationTimestamp	Workflow creation timestamp formatted in RFC 3339 (e.g. 2018-08-23T05:42:49Z)
workflow.creationTimestamp.<STRFTIMECHAR>	Creation timestamp formatted with a strftime format character
workflow.priority	Workflow priority

Exit Handler:

Variable	Description
workflow.status	Workflow status. One of: Succeeded, Failed, Error
workflow.failures	A list of JSON objects containing information about nodes that failed or errored during execution. Includes name, message, templateName, finishedAt, and phase.