Cloud Memorystore for Redis provides a fully managed in-memory data store service. Cloud Memorystore is compatible with the Redis protocol, allowing easy integration with Spring Caching.

All you have to do is create a Cloud Memorystore instance and use its IP address in application.properties file as spring.redis.host property value. Everything else is exactly the same as setting up redis-backed Spring caching.

	Note
	Memorystore instances and your application instances have to be located in the same region.

In short, the following dependencies are needed:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

And then you can use org.springframework.cache.annotation.Cacheable annotation for methods you’d like to be cached.

@Cacheable("cache1")
public String hello(@PathVariable String name) {
    ....
}

If you are interested in a detailed how-to guide, please check Spring Boot Caching using Cloud Memorystore codelab.

Cloud Memorystore documentation can be found here.