基于k8s集群的redis-cluster集群
要在Kubernetes集群上部署Redis Cluster,您可以使用Redis官方提供的Redis Operator或者StatefulSet配合Redis的容器镜像。以下是使用StatefulSet部署Redis Cluster的一个简单示例:
- 创建Redis的ConfigMap,以存储redis.conf配置文件:
apiVersion: v1
kind: ConfigMap
metadata:
name: redis-config
data:
redis.conf: |
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
appendonly yes
- 创建Redis StatefulSet:
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: redis-cluster
spec:
selector:
matchLabels:
app: redis
serviceName: "redis-cluster"
replicas: 6
template:
metadata:
labels:
app: redis
spec:
containers:
- name: redis
image: redis:6.0.9
command:
- "redis-server"
args:
- "/usr/local/etc/redis/redis.conf"
- "--cluster-enabled"
- "yes"
- "--cluster-config-file"
- "nodes.conf"
- "--cluster-node-timeout"
- "5000"
- "--appendonly"
- "yes"
ports:
- containerPort: 6379
name: client
- containerPort: 16379
name: gossip
volumeMounts:
- name: redis-config-volume
mountPath: /usr/local/etc/redis
volumeClaimTemplates:
- metadata:
name: redis-data
spec:
accessModes: [ "ReadWriteOnce" ]
resources:
requests:
storage: 10Gi
在这个示例中,我们部署了一个有6个Redis节点的Cluster,每个节点都有一个PVC来持久化数据。集群配置通过ConfigMap传递给每个Pod。确保修改spec.replicas
来匹配你想要的Redis Cluster节点数量,并且每个节点至少需要三个副本以满足Active-Active模式下的奇数投票quorum要求。
- 创建Service来暴露Redis Cluster:
apiVersion: v1
kind: Service
metadata:
name: redis-cluster
spec:
ports:
- port: 6379
targetPort: 6379
selector:
app: redis
部署这些资源到您的Kubernetes集群后,Redis Cluster将自动开始进行分片和数据同步。您可以使用kubectl exec
命令连接到任何Redis Pod,并通过redis-cli
命令行接口与Cluster交互。
评论已关闭