Redis Sentinel

Redis Sentinel provides a highly available Redis implementation. To enable Sentinel with the Bitnami Redis subchart set the following helm values:

redis:
  architecture: "replication"
  sentinel:
    enabled: true
    masterSet: nautobot

Nautobot requires some additional configuration via a custom nautobot_config.py with the following values set in nautobot_config.py:

DJANGO_REDIS_CONNECTION_FACTORY = "django_redis.pool.SentinelConnectionFactory"
CACHES = {
    "default": {
        "BACKEND": "django_redis.cache.RedisCache",
        "LOCATION": "redis://nautobot/0",
        "OPTIONS": {
            "CLIENT_CLASS": "django_redis.client.SentinelClient",
            "SENTINELS": [(os.getenv("NAUTOBOT_REDIS_HOST"), 26379)],
            "PASSWORD": os.getenv("NAUTOBOT_REDIS_PASSWORD"),
            "SENTINEL_KWARGS": {"password": os.getenv("NAUTOBOT_REDIS_PASSWORD")},
            "CONNECTION_POOL_CLASS": "redis.sentinel.SentinelConnectionPool",
        },
    },
}

CACHEOPS_REDIS = False
CACHEOPS_SENTINEL = {
    "locations": [(os.getenv("NAUTOBOT_REDIS_HOST"), 26379)],
    "service_name": "nautobot",
    "socket_timeout": 10,
    "db": 1,
    "sentinel_kwargs": {"password": os.getenv("NAUTOBOT_REDIS_PASSWORD")},
    "password": os.getenv("NAUTOBOT_REDIS_PASSWORD"),
}
CELERY_BROKER_URL = (
    f"sentinel://:{os.getenv('NAUTOBOT_REDIS_PASSWORD')}@{os.getenv('NAUTOBOT_REDIS_HOST')}:26379"
)
CELERY_BROKER_TRANSPORT_OPTIONS = {
    "master_name": "nautobot",
    "sentinel_kwargs": {"password": os.getenv("NAUTOBOT_REDIS_PASSWORD")},
}
CELERY_RESULT_BACKEND = CELERY_BROKER_URL
CELERY_RESULT_BACKEND_TRANSPORT_OPTIONS = CELERY_BROKER_TRANSPORT_OPTIONS

See the Nautobot caching documentation for more information on configuring Nautobot with Sentinel.

This helm chart's support for Redis Sentinel is still in an early alpha/beta phase you should use this feature cautiously.