我有以下 PersistentVolumeClaim :
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: nginx-pvc
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 256Mi
storageClassName: fask
和部署:
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.7.9
ports:
- containerPort: 80
volumeMounts:
- name: data
mountPath: "/var/www/html"
volumes:
- name: data
persistentVolumeClaim:
claimName: nginx-pvc
如果我使用单个副本部署运行部署,我的PV将由vsphere动态创建 StorageClass
但是,如果我有超过 2 个副本,则无法创建第二个PV:
AttachVolume.Attach failed for volume "pvc-8facf319-6b1a-11e8-935b-00505680b1b8" : Failed to add disk 'scsi0:1'.
Unable to mount volumes for pod "nginx-deployment-7886f48dcd-lzms8_default(b0e38764-6b1a-11e8-935b-00505680b1b8)": timeout expired waiting for volumes to attach or mount for pod "default"/"nginx-deployment-7886f48dcd-lzms8". list of unmounted volumes=[data]. list of unattached volumes=[data default-token-5q7kr]
答案 0 :(得分:2)
但是,如果我有2个以上的副本,则无法创建第二个PV
然后,您应该在其中使用StatefulSet
和volumeClaimTemplates
,而不是Deployment
和PersistentVolumeClaim
。
在您的情况下,每个部署都具有相同的PersistentVolumeClaim
(即ReadWriteOnly并且无法在第二个请求上挂载),而使用volumeClaimTemplates
时,您会为每个副本配置不同的部署。 / p>