Notes from a PostgreSQL RDS upgrade

In production, an Amazon RDS upgrade has a few caveats worth considering.

Health checks with Stethoscope behind an SSL Elastic Load Balancer

I’m rather fond of the Stethoscope gem for application instance monitoring. Here’s how to configure it correctly in AWS with a TLS-only application load balancer.

Hook AWS notifications into Slack with a Lambda function

Flinging application notifications to Slack via SNS and AWS Lambda.