Get a list of task names

[HendrikSchrieber]

Hey everybody,

is it possible to somehow get a list of the names of all tasks of a workflow from within that workflow? I know that I can get certain information using workflow variables but those only get me the name of a single task - the one that is currently being executed. I need a list of all tasks names so I can pass it to an external CI system (e.g. GitLab) and sync the pipeline status.

Thanks!
Hendrik

[wesleyscholl]

@HendrikSchrieber

Currently, Argo Workflows does not provide a built-in way to list all task names in a workflow dynamically from within the workflow itself. Workflow variables such as {{tasks.<TASKNAME>.status}} or {{tasks.<TASKNAME>.id}} give access to specific task information, but they cannot retrieve all task names at once.

https://argo-workflows.readthedocs.io/en/latest/variables/#dag-templates

However, you could extract DAG task names using kubectl and jq.

kubectl get workflow <workflow-name> -o json | jq -r '.spec.templates[] | select(.dag.tasks) | .dag.tasks[].name'

Example Output

If your Workflow contains tasks like task-1, task-2, and task-3, the above commands will return:

task-1
task-2
task-3

References
Argo Workflows Documentation
Kubernetes CLI Reference