** Package changed: linux (Ubuntu) => cdk
** Also affects: ubuntu-z-systems
Importance: Undecided
Status: New
** Changed in: cdk
Assignee: Skipper Bug Screeners (skipper-screen-team) => CDK (cdk8s)
** Changed in: ubuntu-z-systems
Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)
** Changed in: ubuntu-z-systems
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/1889761
Title:
[UBUNTU 20.04] nfs storage failed to run on top of kubernetes-core
cluster on s390x
Status in CDK:
New
Status in Ubuntu on IBM z Systems:
New
Bug description:
Steps to reproduce:
LXD setup and juju installation are done following these instructions
https://ubuntu.com/kubernetes/docs/install-local
Kubernetes Core bundle is installed as described here
https://jaas.ai/kubernetes-core with
juju deploy cs:bundle/kubernetes-core-1069
Install nfs as it is mentioned at https://ubuntu.com/kubernetes/docs/storage
juju deploy nfs --constraints root-disk=10G
juju add-relation nfs kubernetes-worker
Expected result:
`kubectl get sc,po` will show running pod and storage class
Actual result:
# kubectl get sc,po
NAME PROVISIONER
RECLAIMPOLICY VOLUMEBINDINGMODE ALLOWVOLUMEEXPANSION AGE
storageclass.storage.k8s.io/default (default) fuseim.pri/ifs Delete
Immediate false 2m17s
NAME READY STATUS
RESTARTS AGE
pod/nfs-client-provisioner-7698b8dbc9-wj56n 0/1 ContainerCreating 0
2m17s
# kubectl describe pod nfs-client-provisioner-7698b8dbc9-wj56n
Name: nfs-client-provisioner-7698b8dbc9-wj56n
Namespace: default
Priority: 0
Node: juju-62238e-2/10.70.13.80
Start Time: Fri, 31 Jul 2020 11:39:19 +0200
Labels: app=nfs-client-provisioner
pod-template-hash=7698b8dbc9
Annotations: <none>
Status: Pending
IP:
IPs: <none>
Controlled By: ReplicaSet/nfs-client-provisioner-7698b8dbc9
Containers:
nfs-client-provisioner:
Container ID:
Image:
rocks.canonical.com:443/cdk/external_storage/nfs-client-provisioner:v3.1.0-k8s1.11
Image ID:
Port: <none>
Host Port: <none>
State: Waiting
Reason: ContainerCreating
Ready: False
Restart Count: 0
Environment:
PROVISIONER_NAME: fuseim.pri/ifs
NFS_SERVER: 10.70.13.33
NFS_PATH: /srv/data/kubernetes-worker
Mounts:
/persistentvolumes from nfs-client-root (rw)
/var/run/secrets/kubernetes.io/serviceaccount from default-token-r2qgb
(ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
nfs-client-root:
Type: NFS (an NFS mount that lasts the lifetime of a pod)
Server: 10.70.13.33
Path: /srv/data/kubernetes-worker
ReadOnly: false
default-token-r2qgb:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-r2qgb
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled <unknown> default-scheduler Successfully
assigned default/nfs-client-provisioner-7698b8dbc9-wj56n to juju-62238e-2
Warning FailedMount 2m58s kubelet, juju-62238e-2 MountVolume.SetUp
failed for volume "nfs-client-root" : mount failed: exit status 32
Mounting command: systemd-run
Mounting arguments: --description=Kubernetes transient mount for
/var/lib/kubelet/pods/98db0283-95db-47fc-911e-e4375fd9f6cf/volumes/kubernetes.io~nfs/nfs-client-root
--scope -- mount -t nfs 10.70.13.33:/srv/data/kubernetes-worker
/var/lib/kubelet/pods/98db0283-95db-47fc-911e-e4375fd9f6cf/volumes/kubernetes.io~nfs/nfs-client-root
Output: Running scope as unit: run-r946191ed443941e5ad6dcc42ede13325.scope
mount.nfs: requested NFS version or transport protocol is not supported
Warning FailedMount 2m57s kubelet, juju-62238e-2 MountVolume.SetUp
failed for volume "nfs-client-root" : mount failed: exit status 32
Mounting command: systemd-run
Mounting arguments: --description=Kubernetes transient mount for
/var/lib/kubelet/pods/98db0283-95db-47fc-911e-e4375fd9f6cf/volumes/kubernetes.io~nfs/nfs-client-root
--scope -- mount -t nfs 10.70.13.33:/srv/data/kubernetes-worker
/var/lib/kubelet/pods/98db0283-95db-47fc-911e-e4375fd9f6cf/volumes/kubernetes.io~nfs/nfs-client-root
Output: Running scope as unit: run-r5291c4d534b54caa9a2a508e128f00af.scope
mount.nfs: requested NFS version or transport protocol is not supported
Warning FailedMount 2m56s kubelet, juju-62238e-2 MountVolume.SetUp
failed for volume "nfs-client-root" : mount failed: exit status 32
....
So nfs pod actually fails to start because of "requested NFS version
or transport protocol is not supported"
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