Connect to Redis master with Sentinel-powered master discovery

redis-master-discovery.sh

# Provide the IP/port to any Redis server currently in a Sentinel cluster
master=$(redis-cli -h 10.0.1.57 -p 26379 SENTINEL get-master-addr-by-name redis-cluster)

arr=()
while read -r line; do
   arr+=("$line")
done <<< "$master"
echo "Redis master is at ${arr[0]}:${arr[1]}"

# Connect to the master node with redis-cli:
redis-cli -h ${arr[0]} -p ${arr[1]}