springboot RedisReactiveHealthIndicator Redis Sentinel using password

Hi,

When using Spring boot 2.2.4 with Spring cloud gateway version Hoxton.SR1 with Rate limit filter using Redis Sentinel. The RedisReactiveHealthIndicator fails if redis sentinel is configure to use password.

org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1199) ~[spring-data-redis-2.2.4.RELEASE.jar!/:2.2.4.RELEASE]
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getConnection(LettuceConnectionFactory.java:1178) ~[spring-data-redis-2.2.4.RELEASE.jar!/:2.2.4.RELEASE]
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getSharedReactiveConnection(LettuceConnectionFactory.java:952) ~[spring-data-redis-2.2.4.RELEASE.jar!/:2.2.4.RELEASE]
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getReactiveConnection(LettuceConnectionFactory.java:429) ~[spring-data-redis-2.2.4.RELEASE.jar!/:2.2.4.RELEASE]
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getReactiveConnection(LettuceConnectionFactory.java:94) ~[spring-data-redis-2.2.4.RELEASE.jar!/:2.2.4.RELEASE]
    at reactor.core.publisher.MonoSupplier.call(MonoSupplier.java:85) ~[reactor-core-3.3.2.RELEASE.jar!/:3.3.2.RELEASE]
    at reactor.core.publisher.FluxSubscribeOnCallable$CallableSubscribeOnSubscription.run(FluxSubscribeOnCallable.java:225) [reactor-core-3.3.2.RELEASE.jar!/:3.3.2.RELEASE]
    at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:68) [reactor-core-3.3.2.RELEASE.jar!/:3.3.2.RELEASE]
    at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:28) [reactor-core-3.3.2.RELEASE.jar!/:3.3.2.RELEASE]
    at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) [?:?]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
    at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: io.lettuce.core.RedisConnectionException
    at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:75) ~[lettuce-core-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
    at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:56) ~[lettuce-core-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
    at io.lettuce.core.AbstractRedisClient.getConnection(AbstractRedisClient.java:234) ~[lettuce-core-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
    at io.lettuce.core.RedisClient.connect(RedisClient.java:207) ~[lettuce-core-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
    at org.springframework.data.redis.connection.lettuce.StandaloneConnectionProvider.lambda$getConnection$1(StandaloneConnectionProvider.java:115) ~[spring-data-redis-2.2.4.RELEASE.jar!/:2.2.4.RELEASE]
    at java.util.Optional.orElseGet(Optional.java:369) ~[?:?]
    at org.springframework.data.redis.connection.lettuce.StandaloneConnectionProvider.getConnection(StandaloneConnectionProvider.java:115) ~[spring-data-redis-2.2.4.RELEASE.jar!/:2.2.4.RELEASE]
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1197) ~[spring-data-redis-2.2.4.RELEASE.jar!/:2.2.4.RELEASE]
    ... 13 more
Caused by: io.lettuce.core.RedisCommandExecutionException: NOAUTH Authentication required.

Comment From: snicoll

@sraveh that looks like a duplicate of #19436 for which there is a fix in Lettuce 5.2.2.RELEASE. Spring Boot 2.2.4 isn't using that but you can override lettuce.version to use 5.2.2.RELEASE and see if that fixes your problem too. If that does not, please raise an issue on the lettuce issue tracker with a small sample that reproduces the problem.