Hi all, I would need your help. As per the subject, I'm trying to create a PersistentVolumeClaim using Cinder as backend on a K8S cluster I deployed via Magnum, but I'm not able to. I think I'm hitting one or two issues (not sure if the second depends on the first). Here is the story. *>Background<* I managed to deploy a K8S cluster using Magnum and I can also create POD or any other K8S "entity" except persisten volumes and/or claims. Configuration: kolla-ansible: 7.0.1 OS Release: Rocky Base Distro: CentOS I applied the WA as per https://review.openstack.org/#/c/638400/ (a previous issue I found) so K8S cluster is working fine. *> PROBLEM <* I've created the following storageClass: kind: StorageClass apiVersion: storage.k8s.io/v1 metadata: name: standard provisioner: kubernetes.io/cinder parameters: type: fast availability: nova NOTE: I'm trying to use Cinder as backend. NOTE2: I tried with an hostPath and I have no issue. I then tried to create a PersistentVolumeClaim linking the above StorageClass. kind: PersistentVolumeClaim apiVersion: v1 metadata: name: cinder-claim spec: accessModes: - ReadWriteOnce resources: requests: storage: 1Gi storageClassName: standard2 It stays in "Pending" state forever. I had a look at the "kube-controller-manager.service" log and found the following: -------- Mar 08 14:25:21 kube-cluster-march-ppqfakx76wsm-master-0.novalocal runc[3013]: I0308 14:25:21.017065 1 event.go:221] Event(v1.ObjectReference{Kind:"PersistentVolumeClaim", Namespace:"default", Name:"cinder-claim", UID:"ea41e0ac-41ad-11e9-8ffc-fa163e9b393f", APIVersion:"v1", ResourceVersion:"112059", FieldPath:""}): type: 'Warning' reason: 'ProvisioningFailed' Failed to provision volume with StorageClass "standard2": OpenStack cloud provider was not initialized properly : stat /etc/kubernetes/cloud-config: no such file or directory -------- *>>> ISSUE 1 <<<* It seems like that service expects the cloud provider configuration to be in the "cloud-config" file which does not exist. As *workaround*, I created that file and copied the content of "kube_openstack_config" which is: [Global] auth-url=http://10.1.7.201:5000/v3 user-id=eed8ce6dd9734268810f3c23ca91cb19 password=M3rE6Wx9sTB94BQD2m trust-id= ca-file=/etc/kubernetes/ca-bundle.crt region=RegionOne [LoadBalancer] use-octavia=False subnet-id=8c9e0448-2d40-449f-a971-e3acde193678 create-monitor=yes monitor-delay=1m monitor-timeout=30s monitor-max-retries=3 [BlockStorage] bs-version=v2 *>>> ISSUE 2 <<<* Checking again the log of the "kube-controller-manager.service" service I can see this time: Mar 08 14:29:21 kube-cluster-march-ppqfakx76wsm-master-0.novalocal runc[3013]: I0308 14:29:21.403038 1 event.go:221] Event(v1.ObjectReference{Kind:"PersistentVolumeClaim", Namespace:"default", Name:"cinder-claim", UID:"ea41e0ac-41ad-11e9-8ffc-fa163e9b393f", APIVersion:"v1", ResourceVersion:"112059", FieldPath:""}): type: 'Warning' reason: 'ProvisioningFailed' Failed to provision volume with StorageClass "standard2": unable to initialize cinder client for region: RegionOne, err: unable to initialize cinder v2 client for region RegionOne: No suitable endpoint could be found in the service catalog.
From Openstack I see:
root@hce03:~# openstack endpoint list | grep keystone | 011e5905a4a04e348b3fd1d3d1a1ab09 | RegionOne | keystone | identity | True | public | http://10.1.7.201:5000 | | 0fb51c8e0edb45839162a1afe412f9f7 | RegionOne | keystone | identity | True | internal | http://10.1.7.200:5000 | | 34c269a31260459fbd2c0967fda55b1d | RegionOne | keystone | identity | True | admin | http://10.1.7.200:35357 | root@hce03:~# openstack endpoint list | grep cinder | 55b109ed383c4705b71c589bdb0da697 | RegionOne | cinderv3 | volumev3 | True | admin | http://10.1.7.200:8776/v3/%(tenant_id)s | | 6386e4f41af94c25ac8c305c7dbc1af4 | RegionOne | cinderv3 | volumev3 | True | public | http://10.1.7.201:8776/v3/%(tenant_id)s | | 78e706cd0cd74a42b43adc051100b0bc | RegionOne | cinderv2 | volumev2 | True | admin | http://10.1.7.200:8776/v2/%(tenant_id)s | | 83a7da1e426f4aa4b5cac3f4a564f480 | RegionOne | cinderv3 | volumev3 | True | internal | http://10.1.7.200:8776/v3/%(tenant_id)s | | a322b3442a62418098554d23ae6a1061 | RegionOne | cinder | volume | True | public | http://10.1.7.201:8776/v1/%(tenant_id)s | | c82a65eb60cc49348397085233882ba1 | RegionOne | cinder | volume | True | internal | http://10.1.7.200:8776/v1/%(tenant_id)s | | cf2e6d9cb6b640ea876c9f5fe16123d3 | RegionOne | cinderv2 | volumev2 | True | public | http://10.1.7.201:8776/v2/%(tenant_id)s | | e71733a7dbb94a69a44d03ee14389eb5 | RegionOne | cinderv2 | volumev2 | True | internal | http://10.1.7.200:8776/v2/%(tenant_id)s | | e9add20fea3c4d57b2a752832455f6f1 | RegionOne | cinder | volume | True | admin | http://10.1.7.200:8776/v1/%(tenant_id)s |
From the Kube Master I checked whether or not the auth_url, as per the cloud-config is reachable, and it is:
[root@kube-cluster-march-ppqfakx76wsm-master-0 kubernetes]# curl http://10.1.7.201:5000/v3 {"version": {"status": "stable", "updated": "2018-10-15T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v3+json"}], "id": "v3.11", "links": [{"href": "http://10.1.7.201:5000/v3/", "rel": "self"}]}} I also tried to change the block storage version from "v2" to "v1" or "v3". Again the same error. May I ask some support on this ? Many thanks! BR /Giuseppe