云原生存储Longhorn升级到1.7,支持定期或按需全量备份特性
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k3s分布式存储Longhorn1.7版本升级记录
抽空水一下,有兴趣的需要先阅读傻瓜式教学:部署云原生存储Longhorn
新特性
- 新增cli工具代替之前的脚本(新用户用的比较多),其他用途暂时没了解, 官方说支持故障排查, 命令行文档
- RWX(NFS协议)相关特性增强
- RWX 卷快速故障转移,支持快速检测和响应ShareManage故障
- 存储网络支持多次读写
- 当卷意外分离时自动删除工作负载 pod
- 支持定期和按需全量备份
- 增强了副本自动均衡功能
- 建议使用
6.7+
内核版本
新Bug
无法附加在 v1.5.2 和 v1.4.4 之前创建的卷
如果Longhorn 集群包含具有以下特征的资源,请避免升级到 v1.7.0:
- 资源名称:格式为 。
<volume name>-e-<8-char random id>
- 创建时间:集群上安装了 v1.5.2 和 v1.4.4 之前的 Longhorn 版本
运行以下命令以检查是否可以安全地将 Longhorn 集群升级到 v1.7.0:
[ $(kubectl -n longhorn-system get engines.longhorn.io -o name | grep -E '\-e\-[a-z0-9]{8}$' | wc -l) -gt 0 ] && echo "Please hold off on upgrading to v1.7.0 until v1.7.1 is available." || echo "Safe to upgrade to v1.7.0."
升级后体验感觉
自动重新平衡副本
之前手动干预比较多。调整如下参数阈值,会自动在同一节点内的另一个磁盘上重建相关副本
kubectl get settings.longhorn.io/replica-auto-balance-disk-pressure-percentage -n longhorn-system
升级安装
相关镜像我已经同步到国内。
添加 Longhorn Helm 仓库
helm repo add longhorn https://charts.longhorn.io
更新
helm repo update
准备values.yaml
我的环境限制,仅在存储节点运行。
global:
nodeSelector:
node-role.kubernetes.io/storage: "true"
tolerations:
- operator: Exists
effect: NoSchedule
persistence:
defaultClass: false
defaultDataLocality: best-effort
migratable: true
defaultSettings:
createDefaultDiskLabeledNodes: true
defaultDataPath: /data/k8s/longhorn
defaultDataLocality: best-effort
replicaAutoBalance: best-effort
storageMinimalAvailablePercentage: 10
systemManagedComponentsNodeSelector: "node-role.kubernetes.io/storage: true"
taintToleration: ":NoSchedule"
longhornUI:
replicas: 1
ingress:
enabled: true
ingressClassName: nginx
host: lhsc.ysicing.local
# annotations:
# nginx.ingress.kubernetes.io/auth-type: basic
# nginx.ingress.kubernetes.io/auth-secret: basic-auth
longhornManager:
nodeSelector:
node-role.kubernetes.io/storage: "true"
tolerations:
- operator: Exists
effect: NoSchedule
longhornDriver:
nodeSelector:
node-role.kubernetes.io/storage: "true"
tolerations:
- operator: Exists
effect: NoSchedule
image:
longhorn:
engine:
repository: ccr.ccs.tencentyun.com/k7scn/longhorn-engine
manager:
repository: ccr.ccs.tencentyun.com/k7scn/longhorn-manager
ui:
repository: ccr.ccs.tencentyun.com/k7scn/longhorn-ui
instanceManager:
repository: ccr.ccs.tencentyun.com/k7scn/longhorn-instance-manager
shareManager:
repository: ccr.ccs.tencentyun.com/k7scn/longhorn-share-manager
backingImageManager:
repository: ccr.ccs.tencentyun.com/k7scn/backing-image-manager
supportBundleKit:
repository: ccr.ccs.tencentyun.com/k7scn/support-bundle-kit
csi:
attacher:
repository: ccr.ccs.tencentyun.com/k7scn/csi-attacher
provisioner:
repository: ccr.ccs.tencentyun.com/k7scn/csi-provisioner
nodeDriverRegistrar:
repository: ccr.ccs.tencentyun.com/k7scn/csi-node-driver-registrar
resizer:
repository: ccr.ccs.tencentyun.com/k7scn/csi-resizer
snapshotter:
repository: ccr.ccs.tencentyun.com/k7scn/csi-snapshotter
livenessProbe:
repository: ccr.ccs.tencentyun.com/k7scn/livenessprobe
升级
helm upgrade -i longhorn longhorn/longhorn -n longhorn-system -f values.yaml