this post was submitted on 06 Sep 2024
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Programming
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Config is fine, but Yamls biggest problem is people use it to describe programs. For example: playbooks. For example: CI steps.
If YAML wasn't abused in this way it would have a lot less hate.
What's wrong with using YAML for CI? I mean, I use it for Gitlab CI, the underlying script it runs is just Bash.
Right, so you just have a single step and then hand over to a proper script. I've seen many people try to put much more complex logic in there before handing over to a proper language.
You're doing it right by avoiding as much of Gitlab's CI features. I've seen versions where scripts are inlined in the YAML with expressions in random rule fields and pipeline variables thrown all over the place. And don't get me started on their "includes" keyword, it's awful in practice, gives me nightmares.
Then I write a Kubernetes manifest in YAML with JSON schema validation and the heart rate goes down again.