james' blog about scala and all that jazz
This is the Dumbbell Nebula, also known as Messier 27, or NGC 6853. It’s a planetary nebula roughly 1360 lightyears away. At its centre is a hot white dwarf, which is showering the gasses it shed while it was a red giant with UV rays. This causes the gasses to ionise, and subsequently glow. Telescope: Skywatcher Classic 250P 10" Dobsonian 1200 FL Tracking: Home built 2 circle segment…
This month is a month of mixed emotions for me. It is my 10 year anniversary of working at Lightbend, then Typesafe. I’ve loved working for Lightbend, I certainly would not still be working here if I didn’t. I almost passed up the opportunity. At the time Typesafe contacted me I was living in Germany, but I was about to return to Australia. I had taken one years leave without pay from…
A feature of Akka that we’ve been using in production for some time now but haven’t made a big deal about is Akka remoting’s support for using mTLS certificates that are frequently rotated. This support is designed to work with cert-manager and other Kubernetes based secret providers with an absolute minimum of configuration. All you need is two lines of configuration in…
I’m building a multitenant SaaS on top of Kubernetes at the moment, and one principle we’ve gone with is that all secrets should be rotated regularly. I’m surprised by the distinct lack of documentation on best practices for how to supply this configuration in Kubernetes. Of course, when it comes to certificates, it’s fairly straight forward to rotate a certificate using…
sbt 1.0 is now released, and everyone in the sbt community is hard at work upgrading their plugins. Because many sbt plugins depend on each other, there will be a short period of time (that we’re in now) where people won’t be able to upgrade their builds to sbt 1.0 because the plugins their builds use aren’t yet upgraded and released. However, that doesn’t mean you…