Baseimage-docker, fat containers and "treating containers as VMs"

Baseimage-docker is a minimal Ubuntu base image that is modified for Docker-friendliness. People can pull Baseimage-docker from the Docker Registry and use it as a base »

Docker and the PID 1 zombie reaping problem

When building Docker containers, you should be aware of the PID 1 zombie reaping problem. That problem can cause unexpected and obscure-looking issues when you least »

Interview by The Changelog about Phusion Passenger 5 and the Raptor campaign

We have recently been interviewed by the awesome guys at The Changelog, a weekly blog and podcast about open source projects. In this interview I explained »

Researching a potential new form of HTTP caching optimization

It's been a while since we released the first beta of Phusion Passenger 5 (codename "Raptor"), the application server for Ruby, Python and Node.js web »

Phusion Passenger 4.0.57: better Ruby 2.2 support, Nginx 1.7.9 support

We've just released version 4.0.57 of the Phusion Passenger application server for Ruby, Python and Node.js. This release fixes two minor but important »