redis是属于数据库，在ceph为后端存储的情况下，适合rbd模式。所以我们先搭建RBD模式的存储。
紧接上一节CEPH所讲，创建自动供给PV.
[root@adm-master src]# cd external-storage-master/ceph/rbd/deploy/[root@adm-master deploy]# lsnon-rbac rbac README.md[root@adm-master deploy]# pwd/usr/local/src/external-storage-master/ceph/rbd/deploykubectl apply -f ./rbac[root@adm-master rbac]# kubectl get podsNAME READY STATUS RESTARTS AGErbd-provisioner-c968dcb4b-fws8q 1/1 Running 0 42m创建secret
[root@adm-master test-rbd]# cat ceph-secret-rbd.yaml apiVersion: v1kind: Secretmetadata: name: ceph-secret-rbd namespace: test-redistype: "ceph.com/rbd"data: key: QVFCem9UOWdiQWNwRXhBQXFET0VKTnFMWGJRZm1TTmhObkRRdUE9PQo=在ceph节点创建pool池
ceph osd pool create k8stest 256rbd create rbda -s 1024 -p k8stestrbd feature disable k8stest/rbda object-map fast-diff deep-flatten创建storageclass
[root@adm-master test-rbd]# cat rbd-sc.yaml apiVersion: storage.k8s.io/v1kind: StorageClassmetadata: name: k8s-rbdprovisioner: ceph.com/rbdparameters: monitors: 192.168.0.131:6789,192.168.0.132:6789,192.168.0.133:6789 adminId: admin adminSecretName: ceph-secret-rbd pool: k8stest userId: admin userSecretName: ceph-secret-rbd fsType: xfs imageFormat: "2" imageFeatures: "layering"接着安装redis集群
第一步，按套路来先添加库。
helm repo add stable http://mirror.azure.cn/kubernetes/charts/
添加成功
[root@adm-master jenkins]# helm repo listNAME URL apphub https://apphub.aliyuncs.com stable http://mirror.azure.cn/kubernetes/charts/查询一下我们需要的redis
[root@adm-master jenkins]# helm search repo redisNAME CHART VERSION APP VERSION DESCRIPTION apphub/prometheus-redis-exporter 3.2.2 1.3.4 Prometheus exporter for Redis metrics apphub/redis 10.5.3 5.0.7 Open source, advanced key-value store. It is of...apphub/redis-cache 0.5.0 4.0.12-alpine A pure in-memory redis cache, using statefulset...apphub/redis-ha 4.3.3 5.0.6 Highly available Kubernetes implementation of R...apphub/redis-operator 1.0.0 Redis Operator provides high availability redis...apphub/redispapa 0.0.1 0.0.1 利用redis的info信息对redis的使用情况进行监控的一...stable/prometheus-redis-exporter 3.5.1 1.3.4 DEPRECATED Prometheus exporter for Redis metrics stable/redis 10.5.7 5.0.7 DEPRECATED Open source, advanced key-value stor...stable/redis-ha 4.4.6 5.0.6 DEPRECATED - Highly available Kubernetes implem...stable/sensu 0.2.5 0.28 DEPRECATED Sensu monitoring framework backed by...apphub/codis 3.2 3.2 A Helm chart for Codis 查看历史版本命令
helm search repo redis -拉取最新的redis部署文件
helm pull stable/redis-ha[root@adm-master src]# cd redis-ha/[root@adm-master redis-ha]# lsChart.yaml ci README.md templates values.yaml部署文件的变量值一般保存在values.yaml里面
修改一下子values.yaml里面的副本数
改为一主一从即可
存储方式改为rbd，具体搭建cephfs的方式参考我之前的文档。
部署redis集群
[root@adm-master redis-ha]# kubectl create ns test-redisnamespace/test-redis created[root@adm-master redis-ha]# helm install redis . -f ./values.yaml -n test-redisWARNING: This chart is deprecatedNAME: redisLAST DEPLOYED: Sun Mar 14 22:55:28 2021NAMESPACE: test-redisSTATUS: deployedREVISION: 1NOTES:Redis can be accessed via port 6379 and Sentinel can be accessed via port 26379 on the following DNS name from within your cluster:redis-redis-ha.test-redis.svc.cluster.localTo connect to your Redis server:1. Run a Redis pod that you can use as a client: kubectl exec -it redis-redis-ha-server-0 sh -n test-redis2. Connect using the Redis CLI: redis-cli -h redis-redis-ha.test-redis.svc.cluster.local暴露出外网
[root@adm-master redis-ha]# cat redis-services.yaml apiVersion: v1kind: Servicemetadata: name: redis-ha-service namespace: test-redis #名称：随意 labels: app: redis #部署的 redis-ha 名称spec: ports: - name: redis #部署的 redis-ha 名称 protocol: "TCP" #TCP 协议 port: 26379 targetPort: 6379 nodePort: 30379 #此为外部连接k8s redis-ha 服务的端口 selector: statefulset.kubernetes.io/pod-name: redis-redis-ha-server-0 type: NodePort其他可用的命令有
redis 的 upgrade
修改了 values.yaml中的 replicas 数量之后需要更新一下
helm upgrade redis .
查看历史记录回滚
helm -n redis history
删除项目
helm uninstall redis