A simple means for replication a sentinel's in-memory config to a new sentinel.

SentinelReplicator.py

#!/usr/bin/env python
import redis
import sys

origin_ip,origin_port = sys.argv[1].split(":")
target_ip,target_port = sys.argv[2].split(":")

origin = redis.Redis(origin_ip,origin_port)
target = redis.Redis(target_ip,target_port)

masters = origin.sentinel_masters()
copy_keys = [ 'down-after-milliseconds', 'failover-timeout', 'parallel-syncs' ]

for pod in masters.values():
        p = target.pipeline(transaction=False)
        p.sentinel_monitor(pod['name'], pod['ip'],pod['port'],pod['quorum'] )
        for key in copy_keys:
                print key, pod[key]
                p.sentinel_set(pod['name'],key, pod[key])
        print p.execute()