a tumblelog
Fri 05 Jun 2020

Containers from first principles

You’ve likely heard everyone at the office or online proclaim that “K8s has eaten everyone’s lunch!” or that “everything should be in a docker container!”.

While there are advantages to the above methodologies; it’s very easy to have cargo-culted their adoption; especially for Kubernetes (K8s). I find the biggest problem however that there is a fundamental lacking of what is a container.

Source: Containers from first principles, an article by Farid Zakaria.

The beauty of Unix pipelines

The Unix philosophy lays emphasis on building software that is simple and extensible. Each piece of software must do one thing and do it well. And that software should be able to work with other programs through a common interface – a text stream. This is one of the core philosophies of Unix which makes it so powerful and intuitive to use.

Source: The beauty of Unix pipelines, an article by Prithu Goswami.

Unicode Support in Go

With Go being a relatively modern programming language, first released in 2009, it is not unsurprising that it has great support for Unicode strings. What is surprising is just how far this support goes.

Source: Unicode Support in Go, an article by Marcus Noble.

Aphonopelma seemanni Terrarium

In the evening I decided to take photos of the Aphonopelma seemanni I keep and its terrarium. I bought this tarantula together with a Brachypelma smithi the 7th of March 2020 during a visit to Avonturia De Vogelkelder.

Close up of an Aphonopelma seemanni in its burrow
Close up of an Aphonopelma seemanni in its burrow.

Back then I made a starter burrow under a piece of cork tube cut in half. It moved in and has dug the starter burrow much larger since then. Recently it has been closing the opening with substrate and also webbed closed the opening. Most likely because it is going to molt soon.

It still likes to "hang out" as you can see in the above photo, with its legs pressed against the webbing.

The terrarium is a 19 litre (5 US gallon) plastic container with holes drilled in the lid. For substrate I used 12cm (4.7 inch) of a mix of coco peat and sand.

Aphonopelma seemanni terrarium
Aphonopelma seemanni terrarium; a large plastic tub.

In the above photo you can see the cork tube, fake plastic plants, some twigs and a piece of wood, some real moss, and a plastic bottle cap to provide the large spider with a source of water.

See also Aphonopelma seemanni terrarium for a photo of the terrarium taken the 22nd of April.