Storage example in README incorrect

[Sahid Orentino]

On a fresh install of cdk I exactly followed what is indicated here:

  https://ubuntu.com/kubernetes/docs/openstack-integration

But for some reason the credentials are not well initialized:

LAST SEEN TYPE REASON OBJECT MESSAGE
52s Warning ProvisioningFailed persistentvolumeclaim/jenkinsclaim Failed to provision volume with StorageClass "openstack-standard": OpenStack cloud provider was not initialized properly : stat /etc/kubernetes/cloud-config: no such file or directory
13s Warning ProvisioningFailed persistentvolumeclaim/jenkinsclaim Failed to provision volume with StorageClass "openstack-standard": OpenStack cloud provider was not initialized properly : stat /etc/kubernetes/cloud-config: no such file or directory

[Cory Johns (johnsca)]

New versions of Charmed Kubernetes use the external OpenStack cloud provider and create a "cdk-cinder"[1] (I think that was supposed to have been changed to just "cinder", as per what the docs say it is called) which uses the Cinder CSI plugin. From your error message, you are using an "openstack-standard" storage class which seems like it's trying to use the config for the deprecated in-tree OpenStack cloud provider, which is no longer configured.

Can you try changing the storage class for your PVC to "cdk-cinder" and see if that resolves your error?

[1]: https://github.com/charmed-kubernetes/cdk-addons/blob/master/bundled-templates/storageclass-openstack.yaml#L4

[Sahid Orentino (sahid-ferdjaoui)]

Thanks Cory. That fixed the problem.

[Erlon R. Cruz (sombrafam)]

Shouldn't this keep open as the documentation is misleading and points to the old mechanism? Or should we create another bug for the documentation?

[George Kraft (cynerva)]

Hey Erlon,

It's not obvious to me which part of the docs is misleading or incorrect. I don't see any references to an openstack-standard StorageClass in the docs. From what I can see, the docs are currently based around the cdk-cinder StorageClass, which is what I would expect.

If there's still an issue with the docs, please open one here: https://github.com/charmed-kubernetes/kubernetes-docs/issues

[Cory Johns (johnsca)]

It seems that the openstack-standard reference came from the charm README. That will be phased out eventually with the content moved to the main set of docs, but until then, it should be fixed to be correct.

[Cory Johns (johnsca)]

PRs:

* https://github.com/juju-solutions/charm-openstack-integrator/pull/30
* https://github.com/charmed-kubernetes/kubernetes-docs/pull/389

[George Kraft (cynerva)]

No cherry-pick to stable since another change overrides this one: https://github.com/charmed-kubernetes/charm-openstack-integrator/commit/54ced0ef99ee048bc392a9c6b7fbcd91d1251cd1