I've recently finished a course on Helm charts with Cloud Guru and I feel pretty confident about the concepts. However, when it comes to actually developing a Helm chart for an application without relying on the public repository, I'm at a loss. This is especially frustrating since I'm required to create one for work. For anyone skilled in Helm, what methods did you use to get from learning about Helm to actually building working charts?
5 Answers
Absolutely build some charts! A solid way to learn is to take a simple Kubernetes manifest file and turn it into a Helm chart. That hands-on experience will teach you a lot!
I recommend practicing on a local Kubernetes cluster like 'kind'. It's great for hands-on learning. You can even ask ChatGPT for help creating a mini POC to get started. Happy learning!
Start simple! Create a basic chart.yaml—it’s just a few lines—and copy your existing Kubernetes YAML into it. Just like that, you've made a chart! Helm essentially packages up Kubernetes YAML, allowing you to adjust it with variables. If you're unsure about Kubernetes YAML, focus on that first, as it’s essential for creating effective charts.
Here's a funny tip: stab yourself in the eye with a fork! Just kidding, but seriously, once you get into it, Helm can be pretty straightforward.
I learned through trial and error! The official documentation isn’t my favorite, so I focused on mastering Go templating. I dove into Bitnami's chart repository to see a variety of charts, which really helped me understand the structure. They can be confusing at first, but helpers files are super useful. Good luck with your project!
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