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The good, the bad and the ugly of templating YAML in Kubernetes, with Alexander Block
Apr 30, 2024
Alexander Block, creator of the kluctl tool, dives into the world of Kubernetes templating. He reveals the fundamental flaws of Helm and why existing tools like Kustomize and jsonnet aren't the complete answer. Alexander shares his journey from game development to Cloud Native, highlighting how Docker and Kubernetes transformed his workflow. He also discusses the complexities of YAML, the need for adaptable solutions, and what the future holds for resource templating in the ever-evolving Kubernetes landscape.
36:20
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Quick takeaways
- Helm's templating limitations result in overcomplicated configurations, creating confusion and maintenance challenges for Kubernetes deployments.
- ClueCTL aims to simplify the deployment process by enhancing usability and clarity in YAML templating without completely replacing Helm.
Deep dives
Limitations of Helm in Templating
Helm, while popular in the Kubernetes ecosystem, has significant limitations in its templating capabilities. The speaker highlights that Helm's templating often leads to overcomplicated configurations, where excessive templating creates confusion and a lack of readability. The reliance on Go templating is criticized for its non-intuitive syntax, which makes human understanding difficult and often contributes to frustration among users. This overuse of templating leads to complicated YAML files that are challenging to maintain, suggesting a need for a more straightforward approach to deploying applications on Kubernetes.
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