readme.md

Redis on Kubernetes

Create a cluster

minikube start

Namespace

kubectl create ns redis

Storage Class

kubectl get storageclass
NAME                 PROVISIONER             RECLAIMPOLICY   VOLUMEBINDINGMODE      ALLOWVOLUMEEXPANSION   AGE
standard (default)   rancher.io/local-path   Delete          WaitForFirstConsumer   false                  84s

Deployment: Redis nodes

cd /redis/
kubectl apply -n redis -f ./redis-configmap.yaml
kubectl apply -n redis -f ./redis-statefulset.yaml

kubectl -n redis get pods
kubectl -n redis get pv

kubectl -n redis logs redis-0
kubectl -n redis logs redis-1
kubectl -n redis logs redis-2

Test replication status

kubectl -n redis exec -it redis-0 sh
redis-cli 
auth a-very-complex-password-here
info replication

Deployment: Redis Sentinel (min 3 instances)

if master dies sentinel will promote a new master

cd /sentinel/
kubectl apply -n redis -f ./sentinel-statefulset.yaml

kubectl -n redis get pods
kubectl -n redis get pv
kubectl -n redis logs sentinel-0