Understanding Static Pods in Kubernetes
Static Pods offer a different way to manage Pods within a Kubernetes cluster. Unlike regular Pods, which are controlled by the cluster’s Pod schedulers and API server, static Pods are managed directly by the kubelet daemon on a specific node. The API server isn’t aware of these Pods, except through mirror Pods that the kubelet creates for them.
Key characteristics:
- Node-specific: Static Pods are tied to a single node and can’t be moved elsewhere in the cluster.
- Kubelet management: The kubelet on the designated node handles starting, stopping, and restarting static Pods.
- Mirror Pods: The kubelet creates mirror Pods on the API server to reflect the state of static Pods, but these mirror Pods can’t be controlled through the API.
Static Pods can be created using two main methods. The first method is the filesystem-hosted configuration, where you place Pod definitions in YAML or JSON...