39th Week of 2021

Projects⚑

• Correction: Clean up deprecated projects.

Activism⚑

Antifascism⚑

Antifascist Actions⚑

• New: A fake company and five million recycled flyers.

  A group of artists belonging to the Center for political beauty created a fake company Flyerservice Hahn and convinced more than 80 regional sections of the far right party AfD to hire them to deliver their electoral propaganda.

  They gathered five million flyers, with a total weight of 72 tons. They justify that they wouldn't be able to lie to the people, so they did nothing in the broader sense of the word. They declared that they are the "world wide leader in the non-delivery of nazi propaganda". At the start of the electoral campaign, they went to the AfD stands, and they let their members to give them flyers the throw them to the closest bin. "It's something that any citizen can freely do, we have only industrialized the process".

  They've done a crowdfunding to fund the legal process that may result.

Coding⚑

Python⚑

Python Snippets⚑

• New: Document when to use isinstance and when to use type.

  isinstance takes into account inheritance, while type doesn't. So if you want to make sure you're dealing with a specific class, and not any of it's parents or subclasses, use type(obj) == class.

DevOps⚑

Infrastructure as Code⚑

Helmfile⚑

• Correction: Improve the helmfile chart update process.

  Updating charts with helmfile is easy as long as you don't use environments, you run helmfile deps, then helmfile diff and finally helmfile apply. The tricky business comes when you want to use environments to reuse your helmfile code and don't repeat yourself. I've updated the process to include this case.

• New: Document the directory and files structure for multi-environment projects.

• New: Document how to use helmfile environments to follow DRY.

• New: Document how to avoiding code repetition.

  Besides environments, helmfile gives other useful tricks to prevent the illness of code repetition, such as using release templates, or layering the state.

• New: Document how to manage dependencies between the charts, to be able to use concurrency.

  Helmfile support concurrency with the option --concurrency=N so we can take advantage of it and improve our deployment speed, but to ensure it works as expected we have to define the dependencies among charts. For example, if an application needs a database, it has to be deployed before hand.

Operative Systems⚑

Linux⚑

Linux Snippets⚑

• New: Document how to bypass client SSL certificate with a cli tool.

  Websites that require clients to authorize with an TLS certificate are difficult to interact with through command line tools that don't support this feature.

  To solve it, we can use a transparent proxy that does the exchange for us.