如何解决在 Kubernetes 中安装数据库
我正在尝试使用 Rancher 安装 CockroachDB 并遇到一些问题，显示：
FailedBinding (5) 14 sec ago no persistent volumes available for this claim and no storage class is set
如何解决？
这里是我本地机器的配置：
PersistentVolumeClaim：datadir-cockroachdb-0
apiVersion: v1
kind: PersistentVolumeClaim
Metadata:
creationTimestamp: "2021-01-07T23:50:42Z"
finalizers:
- kubernetes.io/pvc-protection
labels:
app.kubernetes.io/component: cockroachdb
app.kubernetes.io/instance: cockroachdb
app.kubernetes.io/name: cockroachdb
managedFields:
- apiVersion: v1
fieldsType: FieldsV1
fieldsV1:
f:Metadata:
f:labels:
.: {}
f:app.kubernetes.io/component: {}
f:app.kubernetes.io/instance: {}
f:app.kubernetes.io/name: {}
f:spec:
f:accessModes: {}
f:resources:
f:requests:
.: {}
f:storage: {}
f:volumeMode: {}
f:status:
f:phase: {}
manager: k3s
operation: Update
time: "2021-01-07T23:50:41Z"
name: datadir-cockroachdb-0
namespace: default
resourceVersion: "188922"
selfLink: /api/v1/namespaces/default/persistentvolumeclaims/datadir-cockroachdb-0
uid: ef83d3c7-0309-44a8-b379-0134835d97a9
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 100Gi
volumeMode: Filesystem
status:
phase: Pending
CockroachDB
clusterDomain: cluster.local
conf:
attrs: []
cache: 25%
cluster-name: ''
disable-cluster-name-verification: false
http-port: 8080
join: []
locality: ''
logtostderr: INFO
max-disk-temp-storage: 0
max-offset: 500ms
max-sql-memory: 25%
port: 26257
single-node: false
sql-audit-dir: ''
image:
credentials: {}
pullPolicy: IfNotPresent
repository: cockroachdb/cockroach
tag: v20.1.3
ingress:
annotations: {}
enabled: false
hosts: []
labels: {}
paths:
- /
tls: []
init:
affinity: {}
annotations: {}
labels:
app.kubernetes.io/component: init
nodeselector: {}
resources: {}
tolerations: []
labels: {}
networkPolicy:
enabled: false
ingress:
grpc: []
http: []
service:
discovery:
annotations: {}
labels:
app.kubernetes.io/component: cockroachdb
ports:
grpc:
external:
name: grpc
port: 26257
internal:
name: grpc-internal
port: 26257
http:
name: http
port: 8080
public:
annotations: {}
labels:
app.kubernetes.io/component: cockroachdb
type: ClusterIP
statefulset:
annotations: {}
args: []
budget:
maxUnavailable: 1
env: []
labels:
app.kubernetes.io/component: cockroachdb
nodeAffinity: {}
nodeselector: {}
podAffinity: {}
podAntiAffinity:
type: soft
weight: 100
podManagementPolicy: Parallel
priorityClassName: ''
replicas: 3
resources: {}
secretMounts: []
tolerations: []
updateStrategy:
type: RollingUpdate
storage:
hostPath: ''
persistentVolume: volume1
annotations: {}
enabled: true
labels: {}
size: 1Gi
storageClass: local-storage ''
tls:
certs:
clientRootSecret: cockroachdb-root
nodeSecret: cockroachdb-node
provided: false
tlsSecret: false
enabled: false
init:
image:
credentials: {}
pullPolicy: IfNotPresent
repository: cockroachdb/cockroach-k8s-request-cert
tag: '0.4'
serviceAccount:
create: true
name: ''
Storage: 1Gi
持久卷
apiVersion: v1
kind: PersistentVolume
Metadata:
annotations:
kubectl.kubernetes.io/last-applied-configuration: '{"apiVersion":"v1","kind":"PersistentVolume","Metadata":{"annotations":{},"labels":{"type":"local"},"name":"volume1"},"spec":{"accessModes":["ReadWriteOnce"],"capacity":{"storage":"10Gi"},"hostPath":{"path":"/data/volume1"}}}'
creationTimestamp: "2021-01-07T23:11:43Z"
finalizers:
- kubernetes.io/pv-protection
labels:
type: local
managedFields:
- apiVersion: v1
fieldsType: FieldsV1
fieldsV1:
f:status:
f:phase: {}
manager: k3s
operation: Update
time: "2021-01-07T23:11:43Z"
- apiVersion: v1
fieldsType: FieldsV1
fieldsV1:
f:Metadata:
f:annotations: {}
f:labels:
.: {}
f:type: {}
f:spec:
f:accessModes: {}
f:capacity: {}
f:hostPath:
.: {}
f:path: {}
f:type: {}
f:persistentVolumeReclaimPolicy: {}
f:volumeMode: {}
manager: kubectl
operation: Update
time: "2021-01-07T23:11:43Z"
- apiVersion: v1
fieldsType: FieldsV1
fieldsV1:
f:Metadata:
f:annotations:
f:kubectl.kubernetes.io/last-applied-configuration: {}
f:spec:
f:capacity:
f:storage: {}
manager: Go-http-client
operation: Update
time: "2021-01-07T23:12:11Z"
name: volume1
resourceVersion: "173783"
selfLink: /api/v1/persistentvolumes/volume1
uid: 6e76984c-22cd-4219-9ff6-ba7f67c1ca72
spec:
accessModes:
- ReadWriteOnce
capacity:
storage: 4Gi
hostPath:
path: /data/volume1
type: ""
persistentVolumeReclaimPolicy: Retain
volumeMode: Filesystem
status:
phase: Available
存储类
apiVersion: storage.k8s.io/v1
kind: StorageClass
Metadata:
creationTimestamp: "2021-01-07T23:29:17Z"
managedFields:
- apiVersion: storage.k8s.io/v1
fieldsType: FieldsV1
fieldsV1:
f:provisioner: {}
f:reclaimPolicy: {}
f:volumeBindingMode: {}
manager: rancher
operation: Update
time: "2021-01-07T23:29:17Z"
name: local-storage
resourceVersion: "180190"
selfLink: /apis/storage.k8s.io/v1/storageclasses/local-storage
uid: 0a5f8b75-7fb5-4965-91ee-91b0a087339a
provisioner: kubernetes.io/no-provisioner
reclaimPolicy: Delete
volumeBindingMode: WaitForFirstConsumer
解决方法
根据提供的详细信息，您的存储类似乎在牧场主上丢失了。
如果没有存储类，则不会创建相应的 PVC，因此会出现错误。存储类别可能会随云提供商的不同而有所不同，也可能会根据磁盘 SSD、HDD 类型的要求而变化。
你可以得到更多的想法：https://rancher.com/docs/rancher/v2.x/en/cluster-admin/volumes-and-storage/provisioning-new-storage/
首先检查您的 PV 是否可用，然后检查存储类别和 PVC。
,这次问题似乎出在 Rancher 上（感谢@Harsh Manvar 的回答）。如果您有更多关于 CockroachDB 的问题，您也可以加入 CockroachDB 社区 Slack 频道，在那里您会找到大量可以及时回答您问题的专家。 （并且一定要加入#community 频道也有一些乐趣！）:) https://go.crdb.dev/p/slack
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