Using URL helpers in Rails ActiveJob background jobs

Rails background jobs don’t know the absolute URL unless you configure it explicitly.

Privilege escalation

A story from my dim & distant past in which I was (legitimately) asked to compromise a server and gain root access.

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.

Using arrays of hstore with Rails 4

Now merged into Rails, but here’s my original write-up of using hstore columns with PostgreSQL.