Kubernetes Configuration Good Practices

Kubernetes Configuration Good Practices General configuration practices Use the latest stable API version Store configuration in version control Write configs in YAML not JSON Keep configuration simple and minimal Group related objects together Add helpful annotations Managing Workloads: Pods, Deployments, and Jobs Use Deployments for apps that should always be running Use Jobs for tasks that should finish Service Configuration and Networking Create Services before workloads that use them Use DNS for Service discovery Avoid hostPort and hostNetwork unless absolutely necessary Use headless Services for internal discovery Working with labels effectively Use semantics labels Use common Kubernetes labels Manipulate labels for debugging Handy kubectl tips Apply entire directories Use label selectors to get or delete resources Quickly create Deployments and Services Conclusion Configuration is one of those things in Kubernetes that seems small until it's not. Configuration is at the heart of every Kubernetes workload. A missing quote, a wrong API version or a misplaced YAML indent can ruin your entire deploy. This blog brings together tried-and-tested configuration best practices. The small habits that make your Kubernetes setup clean, consistent and easier to manage. Whether you are just starting out or already deploying apps daily, these are the little things that keep your cluster stable and your future self sane. This blog is inspired by the original Configuration Best Practices page, which has evolved through contributions from many members of the Kubernetes community. Kubernetes evolves fast. Older APIs eventually get deprecated and stop working. So, whenever you are defining resources, make sure you are using the latest stable API version. You can always check with kubectl api-resources kubectl api-resources This simple step saves you from future compatibility issues. Never apply manifest files directly from your desktop.