Bug in CloudFront's Continuous Deployment Feature
This blog post was inspired by a question on stackoverflow. The user experienced intermittent HTTP 500 error codes from CloudFront. They seemed confident, that their setup was correct, so I was intrigued. The user had deployed a static website to S3 and was using CloudFront in a continuous deployment configuration. That’s a setup, where you have two distributions - production and staging. In such a setup, you can test configuration changes in the staging distribution and divert a fraction of production traffic to it in order to to see how it behaves. Once you’re satisfied with your configuration changes in the staging environment, you promote them to the production distribution and serve all traffic from there. ...