README-using-statefulset.md

Kubernetes Redis Cluster

Create NFS storages

Create Persistent Volumes

kubectl create -f persistentvolume

Create Persistent Volumes Claims

kubectl create -f persistentvolumeclaims

Create Redis Cluster Configuration

kubectl create configmap redis-conf --from-file=redis.conf

Create Redis Services

kubectl create -f statefulset-services/redis-headless.yaml

Create Redis Statefulset

kubectl create -f statefulset/redis-statefulset.yaml

Connect Nodes

kubectl run -i --tty ubuntu --image=ubuntu \
  --restart=Never /bin/bash

apt-get update
apt-get install -y vim wget python2.7 python-pip redis-tools dnsutils

Note: redis-trib doesn't support hostnames (see this issue), so we use dig to resolve our cluster IPs.

pip install redis-trib

redis-trib.py create \
  `dig +short redis-app-0.redis-service.default.svc.cluster.local`:6379 \
  `dig +short redis-app-1.redis-service.default.svc.cluster.local`:6379 \
  `dig +short redis-app-2.redis-service.default.svc.cluster.local`:6379

redis-trib.py replicate \
  --master-addr `dig +short redis-app-0.redis-service.default.svc.cluster.local`:6379 \
  --slave-addr `dig +short redis-app-3.redis-service.default.svc.cluster.local`:6379
redis-trib.py replicate \
  --master-addr `dig +short redis-app-1.redis-service.default.svc.cluster.local`:6379 \
  --slave-addr `dig +short redis-app-4.redis-service.default.svc.cluster.local`:6379
redis-trib.py replicate \
  --master-addr `dig +short redis-app-2.redis-service.default.svc.cluster.local`:6379 
  --slave-addr `dig +short redis-app-5.redis-service.default.svc.cluster.local`:6379

Accessing redis cli

Connect to any redis pod

kubectl exec -it <podName> -- /bin/bash

Access cli

/usr/local/bin/redis-cli -c -p 6379

To check cluster nodes

/usr/local/bin/redis-cli -p 6379 cluster nodes

Contribs

Originally contributed by Kelsey Hightower (https://github.com/kelseyhightower/kubernetes-redis-cluster)