Redis

Redis standalone with prometheus reporting.

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redis prometheus exporter: https://github.com/oliver006/redis_exporter

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To create master and slaves

kubectl exec -n sharedservices -it redis-cluster-0 -- redis-trib create --replicas 1 \
$(kubectl get pods -l app=redis-cluster -o jsonpath='{range.items[*]}{.status.podIP}:6379 ' -n sharedservices) 

Add a new master

kubectl exec redis-cluster-0 -- redis-trib add-node 
$(kubectl get pod redis-cluster-6 -o jsonpath='{.status.podIP}'):6379 
$(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379

Add a new slave

kubectl exec redis-cluster-0 -- redis-trib add-node --slave 
$(kubectl get pod redis-cluster-7 -o jsonpath='{.status.podIP}'):6379 
$(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379

Rebalance master

kubectl exec redis-cluster-0 -- redis-trib rebalance --use-empty-masters 
$(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379

Add a new master

kubectl exec redis-cluster-0 -- redis-trib add-node \
$(kubectl get pod redis-cluster-6 -o jsonpath='{.status.podIP}'):6379 \
$(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379

Add a new slave

kubectl exec redis-cluster-0 -- redis-trib add-node --slave \
$(kubectl get pod redis-cluster-7 -o jsonpath='{.status.podIP}'):6379 \
$(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379

Rebalance master

kubectl exec redis-cluster-0 -- redis-trib rebalance --use-empty-masters \
$(kubectl get pod redis-cluster-0 -o jsonpath='{.status.podIP}'):6379

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