Lint your manifests

[xluffy]

YAML is a tricky format. We use yamllint, because it supports multi-documents in a single file.

You can also use Kubernetes-specifics linters:

• kube-score lints your manifests and enforce good practices.
• kubeval also lints the manifests, but only checks validity.

In Kubernetes 1.13, the --dry-run option appeared on kubectl which lets Kubernetes check your manifests without applying them. You can use this feature to check if your YAML files are valid for Kubernetes.

https://www.algolia.com/blog/engineering/8-algolia-tested-best-practices-kubernetes/