Usage_Cost_of_RDS
As many of them are using RDS, its usage cost will end up like below for Multi-zone Availability with on-demand DB instance
- USD 0.34 per RDS db.r5.large Single-AZ instance hour running Aurora Postgresql with on-demand DB instance
So 24hrs * 30 days = 720 hrs
For single instance 720 hrs * 0.34 = $244.8
For Multi-AZ : 244.8 * 2 = $489.6
If we run only during certain peak times like ( Mon — FRI 9 AM — 6 PM as per our convenience) and shut down during the rest of the time in sbx/testing environment, the billing amount will reduce.
I have written a python lambda function to start and stop the RDS instance and created cloud watch events to execute the lambda.
PFB GitHub path for the src and CF file.
https://github.com/.../infrastructure/rds-auto-start-stop
We have used the cluster name as a parameter in the CF template, so from Dev to QA to UAT I can change the DB name in the environment variable without having to change the code.
