get_kube_node_pool_nodes crashes when the pool hasn't been created yet

[Ngoguey42]

👋👋

I'm experiencing a crash when trying to retrieve the list of name of the nodes that are created by ovh.cloudproject.KubeNodePool.

pulumi up

Previewing update (dev):
     Type                              Name               Plan       Info
 +   pulumi:pulumi:Stack               079-dev            create     1 error
 +   ├─ ovh:CloudProject:Kube          ovh-kube-provider  create
 +   └─ ovh:CloudProject:KubeNodePool  ovh-node-pool      create

Diagnostics:
  pulumi:pulumi:Stack (079-dev):
    error: Program failed with an unhandled exception:
    Traceback (most recent call last):
      File "/Users/nico/test/079/__main__.py", line 25, in <module>
        nodes = ovh.cloudproject.get_kube_node_pool_nodes(
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/Users/nico/test/079/venv/lib/python3.12/site-packages/pulumi_ovh/cloudproject/get_kube_node_pool_nodes.py", line 126, in get_kube_node_pool_nodes
        __ret__ = pulumi.runtime.invoke('ovh:CloudProject/getKubeNodePoolNodes:getKubeNodePoolNodes', __args__, opts=opts, typ=GetKubeNodePoolNodesResult).value
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/Users/nico/test/079/venv/lib/python3.12/site-packages/pulumi/runtime/invoke.py", line 121, in invoke
        return _sync_await(awaitableInvokeResult)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/Users/nico/test/079/venv/lib/python3.12/site-packages/pulumi/runtime/sync_await.py", line 66, in _sync_await
        return fut.result()
               ^^^^^^^^^^^^
      File "/Users/nico/test/079/venv/lib/python3.12/site-packages/pulumi/runtime/invoke.py", line 306, in wait_for_fut
        return await asyncio.ensure_future(do_rpc())
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/Users/nico/test/079/venv/lib/python3.12/site-packages/pulumi/runtime/invoke.py", line 302, in do_rpc
        raise error
    Exception: invoke of ovh:CloudProject/getKubeNodePoolNodes:getKubeNodePoolNodes failed: [kube_id] Missing required argument: The argument "kube_id" is required, but no definition was found. ()

cat __main__.py Pulumi.dev.yaml Pulumi.yaml requirements.txt

import pulumi
import pulumi_ovh as ovh

SERVICE_NAME = "REDACTED"

ovh_kube_cluster = ovh.cloudproject.Kube(
    "ovh-kube-provider",
    service_name=SERVICE_NAME,
    name="my-test-cluster",
    region='GRA11',
)

node_pool = ovh.cloudproject.KubeNodePool(
    "ovh-node-pool",
    name='my-node-pool',
    flavor_name="d2-4",
    kube_id=ovh_kube_cluster.id,
    desired_nodes=2,
    max_nodes=2,
    min_nodes=2,
    service_name=SERVICE_NAME,
)

nodes = ovh.cloudproject.get_kube_node_pool_nodes(
    kube_id=ovh_kube_cluster.id,
    name=node_pool.name,
    service_name=SERVICE_NAME,
)




encryptionsalt: REDACTED
config:
  ovh:applicationKey:
    secure: REDACTED
  ovh:applicationSecret:
    secure: REDACTED
  ovh:consumerKey:
    secure: REDACTED
  ovh:endpoint: ovh-eu





name: "079"
runtime:
  name: python
  options:
    toolchain: pip
    virtualenv: venv
description: A minimal Python Pulumi program
config:
  pulumi:tags:
    value:
      pulumi:template: python






pulumi>=3.0.0,<4.0.0
pulumi-ovh>=0.49,!=0.50

pulumi about

CLI          
Version      3.132.0
Go Version   go1.23.1
Go Compiler  gc

Plugins
KIND      NAME    VERSION
resource  ovh     0.49.0
language  python  unknown

Host     
OS       darwin
Version  14.6.1
Arch     x86_64

This project is written in python: executable='/Users/nico/test/079/venv/bin/python' version='3.12.5'

Current Stack: organization/079/dev

Found no resources associated with dev

Found no pending operations associated with dev

Backend        
Name           ngoguey-mbp
URL            file://~
User           nico
Organizations  
Token type     personal

Dependencies:
NAME          VERSION
fqdn          1.5.1
isoduration   20.11.0
jsonpointer   3.0.0
jupyter       1.1.1
pip           24.2
pulumi_ovh    0.49.0
uri-template  1.3.0
webcolors     24.8.0
wheel         0.44.0

Pulumi locates its logs in /var/folders/50/ccj8r__12yz02g03vhq93r7c0000gn/T/ by default

Additional details

get_kube_node_pool_nodes only crashes during the preview phase of the first pulumi up (i.e. the one that creates the kube cluster).

I hacked the asyncio loop to inspect the status of kube_id passed to get_kube_node_pool_nodes. I believe that get_kube_node_pool_nodes crashes only when kube_id is not known.

import asyncio, nest_asyncio
nest_asyncio.apply()
is_kube_id_known = asyncio.get_running_loop().run_until_complete(ovh_kube_cluster.id.is_known())
print(f'{is_kube_id_known=:}')

Stdout before a crash:

    is_kube_id_known=False

Stdout before a success:

    is_kube_id_known=True

Mitigation

I have been able to prevent the crash by gating the call to get_kube_node_pool_nodes so that it isn't called during the preview run of the code. But I don't think I can work with this on the long run.

if not pulumi.runtime.is_dry_run():
    nodes = ovh.cloudproject.get_kube_node_pool_nodes(
        kube_id=ovh_kube_cluster.id,
        name=node_pool.name,
        service_name=SERVICE_NAME,
    )