我想将卷用于具有多个副本的部署。如何定义一个PersistentVolumeClaim
,以便为每个副本生成?此刻(请参阅下面的示例),我可以生成一个卷并将其分配给Pod。问题是,只有一个卷被产生这会导致此错误消息:如何在Kubernetes部署中使用卷?
38m 1m 18 {kubelet worker-1.loc} Warning FailedMount Unable to mount volumes for pod "solr-1254544937-zblou_default(610b157c-549e-11e6-a624-0238b97cfe8f)": timeout expired waiting for volumes to attach/mount for pod "solr-1254544937-zblou"/"default". list of unattached/unmounted volumes=[datadir]
38m 1m 18 {kubelet worker-1.loc} Warning FailedSync Error syncing pod, skipping: timeout expired waiting for volumes to attach/mount for pod "solr-1254544937-zblou"/"default". list of unattached/unmounted volumes=[datadir]
我怎么能告诉Kubernetes生成每个副本的音量?
我正在使用Kubernetes 1.3。
实施例:
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: solr-datadir
annotations:
volume.alpha.kubernetes.io/storage-class: anything
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 50Gi
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: solr
labels:
team: platform
tier: search
app: solr
spec:
revisionHistoryLimit: 3
replicas: 3
template:
metadata:
name: solr
labels:
team: platform
tier: search
app: solr
spec:
containers:
- name: solr
image: solr:6-alpine
imagePullPolicy: IfNotPresent
ports:
- name: http
containerPort: 80
resources:
requests:
cpu: 512m
memory: 512Mi
command:
- /bin/bash
args:
- -c
- /opt/solr/bin/solr start -f -z zookeeper:2181
volumeMounts:
- mountPath: "/opt/solr/server/solr/mycores"
name: datadir
volumes:
- name: datadir
persistentVolumeClaim:
claimName: solr-datadir
生成荚:
$ kubectl get pods -lapp=solr
NAME READY STATUS RESTARTS AGE
solr-1254544937-chenr 1/1 Running 0 55m
solr-1254544937-gjud0 0/1 ContainerCreating 0 55m
solr-1254544937-zblou 0/1 ContainerCreating 0 55m
生成卷:
$ kubectl get pv
NAME CAPACITY ACCESSMODES STATUS CLAIM REASON AGE
pvc-3955e8f1-549e-11e6-94be-060ea3314be5 50Gi RWO Bound default/solr-datadir 57m
生成的声明:
$ kubectl get pvc
NAME STATUS VOLUME CAPACITY ACCESSMODES AGE
solr-datadir Bound pvc-3955e8f1-549e-11e6-94be-060ea3314be5 0 57m
请注意,部署目前仅支持Pod和副本集,而不支持PetSets。 –
至少在测试版中,GKE还不支持:( –
在GKE上等待1.5 –