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Kubernetes Statefulset Triage

This set of tasks inspects the state of a statefulset resource is a namespace, checking replicas, events, status and raising issues if they're not at expected or minimum values.

Tasks

Fetch StatefulSet Logs Get Related StatefulSet Events Fetch StatefulSet Manifest Details Check StatefulSet Replicas

Configuration

The TaskSet requires initialization to import necessary secrets, services, and user variables. The following variables should be set:

  • kubeconfig: The kubeconfig secret containing access info for the cluster.
  • kubectl: The location service used to interpret shell commands. Default value is kubectl-service.shared.
  • KUBERNETES_DISTRIBUTION_BINARY: Which binary to use for Kubernetes CLI commands. Default value is kubectl.
  • CONTEXT: The Kubernetes context to operate within.
  • NAMESPACE: The name of the namespace to search. Leave it blank to search in all namespaces.
  • STATEFULSET_NAME: The name of the statefulset to query for state and check for issues.
  • LABELS: What kubernetes labels to use for selecting resources when checking values.

Requirements

  • A kubeconfig with appropriate RBAC permissions to perform the desired command.

TODO

  • Add additional documentation.
  • Review label usage for ephemeral sets