glusterfs、heketi 和 kubernetes 自动配置问题答案

【问题标题】：glusterfs, heketi and kubernetes auto provisioning problemglusterfs、heketi 和 kubernetes 自动配置问题
【发布时间】：2020-10-27 22:49:43
【问题描述】：

我有一个 gluster 节点，我测试了 heketi，它正在使用它的 cli 创建卷。

这是我的存储类：

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: myglusterfs
  annotations:  
    storageclass.kubernetes.io/is-default-class: "true"
provisioner: kubernetes.io/glusterfs
allowVolumeExpansion: true
reclaimPolicy: Retain
parameters:
  resturl: "http://x.x.x:8080"
  restuser: "admin"
  secretName: "heketi-secret"
  secretNamespace: "default"
  volumetype: "replicate:0"
  volumenameprefix: "k8s-dev"
  clusterid: "4d9a77f712zb12x57dd42477b993e9af"

当我创建一个示例 PVC 时，它会停留在挂起状态：

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
 name: mypvc
spec:
 accessModes:
   - ReadWriteOnce
 resources:
  requests:
   storage: 1Gi

# kubectl get pvc
NAME    STATUS    VOLUME   CAPACITY   ACCESS MODES   STORAGECLASS   AGE
mypvc   Pending                                      myglusterfs    5m11s

# kubectl describe pvc mypvc 
Name:          mypvc
Namespace:     default
StorageClass:  myglusterfs
Status:        Pending
Volume:        
Labels:        <none>
Annotations:   volume.beta.kubernetes.io/storage-provisioner: kubernetes.io/glusterfs
Finalizers:    [kubernetes.io/pvc-protection]
Capacity:      
Access Modes:  
VolumeMode:    Filesystem
Mounted By:    <none>
Events:
  Type     Reason              Age                  From                         Message
  ----     ------              ----                 ----                         -------
  Warning  ProvisioningFailed  14s (x10 over 6m9s)  persistentvolume-controller  Failed to provision volume with StorageClass "myglusterfs": failed to create volume: failed to create volume: see kube-controller-manager.log for details

当我看到 kube-controller-manager pod 日志时，它看起来像这样：

1 event.go:291] "Event occurred" object="default/mypvc" kind="PersistentVolumeClaim" apiVersion="v1" type="Warning" reason="ProvisioningFailed" message="Failed to provision volume with StorageClass \"myglusterfs\": failed to create volume: failed to create volume: see kube-controller-manager.log for details"

问题是：我怎样才能找出为什么 pvc 永远处于挂起模式？详细日志在哪里？

【问题讨论】：

标签： kubernetes glusterfs

【解决方案1】：

当 gluster 集群上只有一个节点时，卷类型必须为无。

volumetype: "none"

【讨论】：