Hi,

Thanks for visiting my blog. :)

I also tried to use newer versions of the sidecars, but If I remember correctly this also required to use containerd and with containerd I got an error regarding Flannel. So in the end I just stick with older K8s release.

Cheers
Oliver

Von meinem iPhone gesendet

Am 19.03.2023 um 18:39 schrieb wodel youchi <wodel.youchi@gmail.com>:


Hi,

I am trying to attach a cinder volume to my pod, but it does not work.

The long story, the default version of kubernetes used in Yoga is 1.23.3 fcore35. When creating a default kubernetes cluster we got :

Which
1 - Does not correspond to the documentation of Magnum, the documentation states these defaults for yoga :
    Image:         10.0.0.165:4000/csi-attacher:v3.3.0
    Image:         10.0.0.165:4000/csi-provisioner:v3.0.0
    Image:         10.0.0.165:4000/csi-snapshotter:v4.2.1
    Image:         10.0.0.165:4000/csi-resizer:v1.3.0
    Image:         10.0.0.165:4000/cinder-csi-plugin:v1.26.2
    Image:         10.0.0.165:4000/csi-node-driver-registrar:v2.4.0
    Image:         10.0.0.165:4000/cinder-csi-plugin:v1.26.2  (cinder-csi-plugin:v1.23.0 which does not exists anymore)

2 - And does not work, csi-cinder-controllerplugin keeps crashing.

I tried to use the updates images (using a local registry), but I couldn't attach the cinder-volume, I got :

Volumes:
  html-volume:
    Type:       Cinder (a Persistent Disk resource in OpenStack)
    VolumeID:   f780cb46-ed2a-405d-b901-7201b49c3df1
    FSType:     ext4
    ReadOnly:   false
    SecretRef:  nil
  kube-api-access-slqf4:
    Type:                    Projected (a volume that contains injected data from multiple sources)
    TokenExpirationSeconds:  3607
    ConfigMapName:           kube-root-ca.crt
    ConfigMapOptional:       <nil>
    DownwardAPI:             true
QoS Class:                   Burstable
Node-Selectors:              <none>
Tolerations:                 node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
                             node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
  Type     Reason              Age                    From                     Message
  ----     ------              ----                   ----                     -------
  Warning  FailedMount         26m (x10 over 135m)    kubelet                  Unable to attach or mount volumes: unmounted volumes=[html-volume], unattached volumes=[kube-api-access-slqf4 html-volume]: timed out waiting for the condition
  Warning  FailedAttachVolume  3m39s (x40 over 146m)  attachdetach-controller  AttachVolume.Attach failed for volume "cinder.csi.openstack.org-f780cb46-ed2a-405d-b901-7201b49c3df1" : Attach timeout for volume f780cb46-ed2a-405d-b901-7201b49c3df1
  Warning  FailedMount         104s (x54 over 146m)   kubelet                  Unable to attach or mount volumes: unmounted volumes=[html-volume], unattached volumes=[html-volume kube-api-access-slqf4]: timed out waiting for the condition


"volume":{"capacity_bytes":5368709120,"volume_id":"7e377933-4ae6-47b7-a685-f484d35153af"}},{"status":{"published_node_ids":["c2531ccf-842e-44d1-85bd-72c811cea199"]},"volume":{"capacity_bytes":1073741824,"volume_id":"f9d5273b-e73d-4b37-8b50-1fcecb910b2a"}}]}
I0319 12:36:50.910443       1 connection.go:201] GRPC error: <nil>
I0319 12:36:56.925658       1 controller.go:210] Started VA processing "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:56.925682       1 csi_handler.go:224] CSIHandler: processing VA "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:56.925687       1 csi_handler.go:251] Attaching "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:56.925691       1 csi_handler.go:421] Starting attach operation for "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:56.925705       1 csi_handler.go:740] Found NodeID 472bf42d-5ce0-4751-8fec-57bede0024d6 in CSINode k8intcalnewer-56bgom6jntbm-node-0
I0319 12:36:56.925828       1 csi_handler.go:312] VA finalizer added to "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:56.925836       1 csi_handler.go:326] NodeID annotation added to "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:56.947632       1 connection.go:193] GRPC call: /csi.v1.Controller/ControllerPublishVolume
I0319 12:36:56.947646       1 connection.go:194] GRPC request: {"node_id":"472bf42d-5ce0-4751-8fec-57bede0024d6","volume_capability":{"AccessType":{"Mount":{"fs_type":"ext4"}},"access_mode":{"mode":1}},"volume_id":"f780cb46-ed2a-405d-b901-7201b49c3df1"}
I0319 12:36:58.343821       1 connection.go:200] GRPC response: {"publish_context":{"DevicePath":"/dev/vdc"}}
I0319 12:36:58.343834       1 connection.go:201] GRPC error: <nil>
I0319 12:36:58.343841       1 csi_handler.go:264] Attached "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:58.343848       1 util.go:38] Marking as attached "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:58.348467       1 csi_handler.go:234] Error processing "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7": failed to mark as attached: volumeattachments.storage.k8s.io "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7" is forbidden: User "system:serviceaccount:kube-system:csi-cinder-controller-sa" cannot patch resource "volumeattachments/status" in API group "storage.k8s.io" at the cluster scope
I0319 12:36:58.348503       1 controller.go:210] Started VA processing "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:58.348509       1 csi_handler.go:224] CSIHandler: processing VA "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:58.348513       1 csi_handler.go:251] Attaching "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:58.348517       1 csi_handler.go:421] Starting attach operation for "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:58.348525       1 csi_handler.go:740] Found NodeID 472bf42d-5ce0-4751-8fec-57bede0024d6 in CSINode k8intcalnewer-56bgom6jntbm-node-0
I0319 12:36:58.348540       1 csi_handler.go:304] VA finalizer is already set on "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:58.348552       1 csi_handler.go:318] NodeID annotation is already set on "csi-9f81405424dc2cf210b6465f8b649ef20f85024f169b660fab235c03f64753b7"
I0319 12:36:58.348564       1 connection.go:193] GRPC call: /csi.v1.Controller/ControllerPublishVolume
I0319 12:36:58.348567       1 connection.go:194] GRPC request: {"node_id":"472bf42d-5ce0-4751-8fec-57bede0024d6","volume_capability":{"AccessType":{"Mount":{"fs_type":"ext:


The I tried even the most updated images :

I had the same problem.

Then I tried to use an  older version of kubernetes : 1.21.11 with the older images shown above (following this link https://www.roksblog.de/deploy-kubernetes-clusters-in-openstack-within-minutes-with-magnum/), and it worked, the cinder volume was successfully mounted inside my nginx pod.



- What is the meaning of the error I am having?
- Is it magnum related or kubernetes related or both?


Regards.