Hi, I am trying to use a `node_selecto`r in the

@kubernetes

decorator, I am not sure how to specify the nodeselector label(s). We have 3 labels (I've read that all 3 labels should be specified in a yaml pod/job definition). I have tried several ways (list, str, tuple(str)), but none seems to work. For example:

[spec.template.spec.nodeSelector: Invalid value: "nvidia-ampere-a10g,<http://veo.co/nodegroup-family=gpu_dem_g4_2x,nvidia.com/gpu=true|veo.co/nodegroup-family=gpu_dem_g4_2x,nvidia.com/gpu=true>": must be no more than 63 characters, spec.template.spec.nodeSelector: Invalid value: "nvidia-ampere-a10g,<http://veo.co/nodegroup-family=gpu_dem_g4_2x,nvidia.com/gpu=true|veo.co/nodegroup-family=gpu_dem_g4_2x,nvidia.com/gpu=true>": a valid label must be an empty string or consist of alphanumeric characters, '-', '_' or '.', and must start and end with an alphanumeric character (e.g. 'MyValue',  or 'my_value',  or '12345', regex used for validation is '(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])?')]

my labels have

/

but the validation regex is only alphanumeric? any advice on how to specify several labels for the node selector on the decorator? thanks a lot 🙂

You shouldn't have to use multiple labels. Using a single label should be enough for influencing K8s to schedule the pod on the node. I just tried the following and it worked just fine:

$ python3.10 starter_flow.py run --with kubernetes:node_selector="<http://kubernetes.io/hostname=ip-10-10-9-120.us-west-2.compute.internal|kubernetes.io/hostname=ip-10-10-9-120.us-west-2.compute.internal>"

Great, I’ll give it a shot. What about the regex validator in the decorator? Would it accept your node_selector even if this has a /

As long as the node selector is passed as a string (see the

"

in the usage above), the string should get passed down to K8s and it should work. The example i tried above had the

/

and it worked fine.

Sweet, thank you 🙏🏾