Problem

In redis_sentinel.py line 33, the Redis connection is created without any SSL/TLS parameters:

redis_conn = redis.StrictRedis(host=host, port=port, password=password, db=0)

This makes it impossible to connect to Redis Sentinel instances that require TLS, which is increasingly common in production environments (e.g. AWS ElastiCache, Azure Cache for Redis, or any hardened deployment).

Expected Behavior

The check should support ssl, ssl_certfile, ssl_keyfile, ssl_ca_certs, and related parameters from the instance config, similar to the core Redis integration.

Suggested Fix

Pass SSL parameters from the instance config through to redis.StrictRedis:

ssl = instance.get('ssl', False)
ssl_kwargs = {}
if ssl:
    ssl_kwargs = {
        'ssl': True,
        'ssl_certfile': instance.get('ssl_certfile'),
        'ssl_keyfile': instance.get('ssl_keyfile'),
        'ssl_ca_certs': instance.get('ssl_ca_certs'),
        'ssl_cert_reqs': instance.get('ssl_cert_reqs', 'required'),
    }

redis_conn = redis.StrictRedis(host=host, port=port, password=password, db=0, **ssl_kwargs)