Keycloak-Infinispan Redis缓存存储 [英] Keycloak - Infinispan Redis cache store

问题描述

当前以单机版ha模式设置密钥斗篷集群，以便能够在docker swarm上运行.在keycloak中，用户会话被缓存在嵌入式infinispan存储中，并且infinispan可以配置为跨集群的分布式缓存.

Currently setting up a keycloak cluster in standalone-ha mode, to be able to run on docker swarm. In keycloak, the user sessions are cached in an embedded infinispan store and infinispan can be configured to be a distributed cache across the cluster.

我也将所有者设置为2，但是问题是..在缩减期间，有可能丢失用户会话，如果在扩展期间杀死了包含缓存的两个所有者，向下.

I have also set the owner to be 2, but the problem is that.. during scale-down, there is a possibility for the user-sessions to be lost, If both the owners containing the cache are killed during scale-down.

我还阅读了有关Infinispan Redis缓存存储的信息，但是我不确定如何配置它.

I have also read about Infinispan Redis cache store, but I am not sure how to configure this.

问题1: 是否可以将Keycloak Infinispan配置为使用Redis Store?

Question 1: Is it possible to configure Keycloak Infinispan to user a Redis Store ?

问题2: 如果这不可能，那么有没有办法克服这个问题呢?

Question 2: If this is not possible, is there a way that one could overcome this problem ?

任何建议都会有所帮助.

Any suggestions would be helpful.

推荐答案

当期望动态扩展大型系统时，可以避免在配置中注册可用节点列表的这种限制.因此，在这里发现Redis节点是有好处的.

When expecting to scale large systems dynamically, it is expected to avoid such a constraint to register a list of available nodes in configurations. So Redis nodes discovery is a benefit here.

Infinispan本身支持Redis Store作为实现SPI和添加XML实体以简化配置的扩展:

Infinispan itself supports Redis Store as an extension implementing both SPI and adding XML entities to ease configuration:

• http://infinispan.org/docs/cachestores/redis/

https://github.com/infinispan/infinispan-cachestore-redis

http://infinispan.org/docs/stable/user_guide/user_guide.html#custom_cache_stores

但是，WildFly infinispan子系统中尚不支持此扩展，因为Keycloak依赖于WildFly.

But this extension is not supported (yet) in WildFly infinispan subsystem - as Keycloak relies on WildFly.

因此，我希望通过以下任务来为WildFly和Keycloak提供Infinispan Redis Store:

So I expect the following tasks to get Infinispan Redis Store available for WildFly, and so Keycloak:

• 为infinispam redis存储罐创建jboss模块-请参见modules/system/layers/base/org/infinispan/

创建一个自定义缓存存储"工厂，该工厂能够通过WildFly配置键/值属性实例化Redis存储对象(存储，服务器和连接池).这也必须作为jboss模块添加到WildFly

Create a "Custom Cache Store" factory able to instanciate Redis Store objects (store, servers and connection pool) from WildFly configuration key/value properties. This has to be added to WildFly as a jboss module too

使用WildFly infinispan子系统本地缓存"自定义"来配置具有属性class和properties的工厂:

Use WildFly infinispan subsystem "local-cache" "custom" to configure this factory with attributes class and properties: https://wildscribe.github.io/WildFly/11.0/subsystem/infinispan/cache-container/local-cache/store/custom/index.html

工作正在进行中，可能会发布代码和配置.

Work is in progress and it is possible code and configuration will be published.

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