Unable to use redis sessions with AWS Elasticache

[zwilias]

Description

AWS Elasticache, like most cloud-based redis offerings, run in secure mode, which effectively disables the CONFIG command. However, the JedisConnectionFactory as configured in WEB-INF/applicationContext-session-redis.xml will attempt to use the CONFIG command to enable keyspace notifications.

Priority

Low

Resolution

I have no budget and there's no rush, please add this feature for free

More information

We are working around this particular issue by replacing the applicationContext-session-redis.xml with the following in our war:

<?xml version="1.0" encoding="UTF-8"?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/util
        http://www.springframework.org/schema/util/spring-util.xsd">
    <context:annotation-config />
    <bean class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration" p:configureRedisAction-ref="configureRedisAction" />
    <util:constant id="configureRedisAction" static-field="org.springframework.session.data.redis.config.ConfigureRedisAction.NO_OP"/>
    <bean name="jedisConnectionFactory" 
        class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
        p:hostName="${structurizr.redis.host}" 
        p:port="${structurizr.redis.port}" 
        p:password="${structurizr.redis.password}" />
</beans>

This works, though ideally something like structurizr.redis.secure to toggle this behaviour would be quite a bit more ergonomic, much like spinnaker offers.