rds

Among all the different technologies in our stack, we also use MySQL. While we still run MySQL (or Percona-Server) ourselves, we selected a managed solution to power parts of our production infrastructure: a Multi-AZ setup with Amazon’s RDS. AZ is Amazon-speak for “availability zone”, essentially a datacenter. RDS stands for: Relational Database Service. Judging from my experience with our own setups where EBS is in the mix, I have to say that Amazon does an outstanding job hiding these potential issues with RDS from us....

I recently had the pleasure to setup an RDS instance and it took me a while to figure out what the --ec2-security-group-owner-id parameter needs to be populated with when you want to allow access to your RDS instance from instances with a certain security group. To cut to the chase, you need to log into AWS and then click the following link — done.