redis-cluster

Redis Cluster

Redis is a key-value based distributed database, this helm chart is for redis cluster setup. This helm chart needs Redis Operator inside Kubernetes cluster. The redis cluster definition can be modified or changed by values.yaml.

helm repo add ot-helm https://ot-container-kit.github.io/helm-charts/

helm install <my-release> ot-helm/redis-cluster \
    --set redisCluster.clusterSize=3 --namespace <namespace>

Redis setup can be upgraded by using helm upgrade command:-

helm upgrade <my-release> ot-helm/redis-cluster --install \
    --set redisCluster.clusterSize=5 --namespace <namespace>

For uninstalling the chart:-

helm delete <my-release> --namespace <namespace>

Pre-Requisities

• Kubernetes 1.15+
• Helm 3.X
• Redis Operator 0.7.0

Parameters

Name	Default Value	Description
imagePullSecrets	[]	List of image pull secrets, in case redis image is getting pull from private registry
redisCluster.clusterSize	3	Size of the redis cluster leader and follower nodes
redisCluster.clusterVersion	v7	Major version of Redis setup, values can be v6 or v7
redisCluster.persistenceEnabled	true	Persistence should be enabled or not in the Redis cluster setup
redisCluster.secretName	redis-secret	Name of the existing secret in Kubernetes
redisCluster.secretKey	password	Name of the existing secret key in Kubernetes
redisCluster.image	quay.io/opstree/redis	Name of the redis image
redisCluster.tag	v6.2	Tag of the redis image
redisCluster.imagePullPolicy	IfNotPresent	Image Pull Policy of the redis image
redisCluster.leaderServiceType	ClusterIP	Kubernetes service type for Redis Leader
redisCluster.followerServiceType	ClusterIP	Kubernetes service type for Redis Follower
externalService.enabled	false	If redis service needs to be exposed using LoadBalancer or NodePort
externalService.annotations	{}	Kubernetes service related annotations
externalService.serviceType	NodePort	Kubernetes service type for exposing service, values - ClusterIP, NodePort, and LoadBalancer
externalService.port	6379	Port number on which redis external service should be exposed
serviceMonitor.enabled	false	Servicemonitor to monitor redis with Prometheus
serviceMonitor.interval	30s	Interval at which metrics should be scraped.
serviceMonitor.scrapeTimeout	10s	Timeout after which the scrape is ended
serviceMonitor.namespace	monitoring	Namespace in which Prometheus operator is running
redisExporter.enabled	true	Redis exporter should be deployed or not
redisExporter.image	quay.io/opstree/redis-exporter	Name of the redis exporter image
redisExporter.tag	v6.2	Tag of the redis exporter image
redisExporter.imagePullPolicy	IfNotPresent	Image Pull Policy of the redis exporter image
redisExporter.env	[]	Extra environment variables which needs to be added in redis exporter
sidecars	[]	Sidecar for redis pods
nodeSelector	{}	NodeSelector for redis statefulset
priorityClassName	""	Priority class name for the redis statefulset
storageSpec	{}	Storage configuration for redis setup
securityContext	{}	Security Context for redis pods for changing system or kernel level parameters
affinity	{}	Affinity for node and pods for redis statefulset
tolerations	[]	Tolerations for redis statefulset