AWS ElastiCache are in memory databases with very high performance and low latency. They designed to reduce the load on databases for high levels of reads. They allow your application to be stateless by placing the placing the current state of the data into ElastiCache. AWS takes care of OS maintenance, optimization, setup, configuration, monitoring, recovery and backup of the ElastiCache making it transparent to customer. Normally you have to perform a lot of code changes for existing application to use the ElastiCache option. Here we will build an ElastiCache service for use in your AWS environment.
1. Logon to AWS as an IAM user at URL: https://signin.aws.amazon.com/
2. From the Home Console type elasticache in the search bar, select the star next to ElastiCache, and select ElastiCache
3. Click the Get started button and select Redis OSS
4. Next AWS will try to move you to the newer ElastiCache option of Valkey which will reduce cost with open source option. Select create Valkey.
5. Under Configuration select Valkey, Design your own cache, Easy create.
6. Under Configuration select Demo and under cluster information enter a name for your cache.
7. Under Connectivity select Create a new subnet group and name the group.
8. Then click the Create button at the bottom of options.
9. This completes creating a ElastiCache in your AWS environment.