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How are you running the code? You can't just run the python code, you have to run

pulumi up

You can follow the instructions to install Pulumi and get it set up with python (which I think you're using?) here: https://www.pulumi.com/docs/get-started/aws/begin/ I know you're not using AWS, but there are instructions to set up Pulumi with python

The main problem is I dunno what content to fill the pulumi resources. For example, how does one know the s-2vcpu-2gb in this link: https://github.com/pulumi/examples/blob/327afe30ce820901f210ed2a01da408071598ed6/digitalocean-py-k8s/__main__.py#L19

You can get the node sizes using the

GetSizes

function: https://www.pulumi.com/docs/reference/pkg/digitalocean/getsizes/

The problem is, I have to run it with pulumi up. I shall run it as a simple python script.

You can use our automation api, but you do need to have the Pulumi CLI installed

I have pulumi installed. I

"from" - I mean are you running the code from your local machine, are you running it in a container, in a CI/CD pipeline?

Thanks for your consistent help on this. I’ve another question, for this line: https://github.com/pulumi/examples/blob/327afe30ce820901f210ed2a01da408071598ed6/digitalocean-py-k8s/__main__.py#L23, kubeconfig=cluster.kube_configs.apply I don’t understand why apply could be called on the kube_config object. According to the doc, https://www.pulumi.com/docs/reference/pkg/digitalocean/kubernetescluster/#kube_configs_python kube_configs is a Sequence.

Apply is used here because we don't know what the value of the kubeconfig will be until everything is complete. Think of it like a callback in javascript.

What’s the type of kube_configs ?

a sequence