TL;DR
Kubernetes v1.35 introduces GA support for kubelet configuration drop-in directories, simplifying management of heterogeneous node pools and easing rollout of changes across diverse environments.
What happened
In the Kubernetes v1.35 release, the kubelet command line argument <code>--config-dir</code> has been marked as generally available, enabling cluster administrators to specify a directory containing configuration files for various node types, thus simplifying configuration management in large clusters with diverse node requirements.
Why it matters for ops
This feature addresses operational challenges such as configuration drift and complexity associated with maintaining individual configurations for different node types within heterogeneous Kubernetes clusters. It offers a more streamlined approach to managing and rolling out changes across multiple nodes.
Action items
- Evaluate the benefits of using kubelet configuration drop-in directories in your cluster setup.
- Consider adopting version control practices for better management and auditing of drop-in configurations.
- Gradually test new configurations on a subset of nodes before rolling them out cluster-wide.
Source link
https://kubernetes.io/blog/2025/12/22/kubernetes-v1-35-kubelet-config-drop-in-directory-ga/