Kubernetes中为ELK组件配置持久化存储

在Kubernetes中为ELK组件配置持久化存储（PV/PVC）需根据存储类型（如NFS、云存储）和访问模式（如RWO/RWX）设计。

​​一、Elasticsearch持久化存储配置​​

​​1. 静态PV/PVC配置（以NFS为例）​​

​​步骤​​：

1. ​​创建PV​​：定义NFS存储的容量、访问模式和回收策略。

   # es-pv.yaml
   apiVersion: v1
   kind: PersistentVolume
   metadata:name: es-pv-01
   spec:capacity:storage: 50GiaccessModes:- ReadWriteOnce  # Elasticsearch通常需单节点写入nfs:server: 192.168.1.100  # NFS服务器IPpath: "/nfs/elasticsearch"  # NFS共享路径persistentVolumeReclaimPolicy: Retain  # 保留数据，手动清理

   kubectl apply -f es-pv.yaml

2. ​​创建PVC​​：绑定PV并申请存储。

   # es-pvc.yaml
   apiVersion: v1
   kind: PersistentVolumeClaim
   metadata:name: es-pvc-01
   spec:accessModes:- ReadWriteOnceresources:requests:storage: 50Gi

   kubectl apply -f es-pvc.yaml

3. ​​在Elasticsearch StatefulSet中挂载PVC​​：

   # es-statefulset.yaml
   apiVersion: apps/v1
   kind: StatefulSet
   metadata:name: elasticsearch
   spec:template:spec:containers:- name: elasticsearchimage: docker.elastic.co/elasticsearch/elasticsearch:8.10.0volumeMounts:- name: es-storage