SmartOS supports running Docker containers through Triton (SmartDataCenter). However I don’t have an entire datacenter at my disposal and the recommended specs for Triton are a bit more than the hardware I have available. I just want to run Docker containers on a single machine. A little bit of background: SmartOS supports running native Linux binaries in LX-branded zones through their Linux emulation. This is the base for regular LX-branded zones (behaves like a normal Solaris zone) and thus also allows for pulling images from the Docker Hub and running them unmodified.

Several times during the past weeks I’ve found myself in need of a particular tag for a Docker image on the Docker Hub. Upstream released their software and I wanted to deploy the container with the latest version. Of course you can keep reloading the Tags page to see if something new has shown up. So I wrote a little tool called docker-tags. It keeps track of images you want to followand when asked reports either:

Creating cross-compiled binaries for Go projects is nothing new, and many projects build binaries for more than just linux/amd64, great. Some even build binaries for openbsd/amd64, even better. At the time of writing there’s no Go 1.5 port for OpenBSD yet, however there are some projects which requires Go >= 1.5. E.g. filebeat. So I made a simple Docker image which provides a cross-compiler for any supported Go target, but defaulting to openbsd/amd64: jasperla/go-cross.

To flex my Coffeescript muscle I wrote a tool called Dockerlinta while ago. At the time there were already several projects with this obvious name, however none actually did The Right Thing. Either they were placeholders/vaporware or they had two checks. Instead of coming up with arbitrary Dos and Donts, Dockerlint follows two documents as set forth by Docker Inc.: Best practices for writing Dockerfiles Dockerfile reference I try to keep up with Docker’s insane release schedule (closing in to releasing 4 new major versions each week?

Before I switched to Sonos as my primary way of listening to audio I’ve used MPD for years. As such I collected a fair amount of audio files that Rdio, Tidal or Spotify claim I’m not allowed to stream in my region. And while Sonos is great, there’s not really a way to control it the way you can control an MPD server for which there are many clients and libraries.