Choose the best description of what an Operator does in Kubernetes.
Think about how Operators help manage applications beyond basic Kubernetes features.
An Operator extends Kubernetes by automating deployment, scaling, and management of complex applications using custom resources.
Given a custom resource named MyApp managed by an Operator, what does this command output?
kubectl get myapp example-instance -o jsonpath='{.status.phase}'
The Operator updates the status.phase field to reflect the current state.
The status.phase field shows the current lifecycle phase of the custom resource, typically 'Running' when healthy.
Put these Operator reconciliation steps in the correct order.
Think about how the Operator detects changes, checks current state, applies updates, then reports status.
The Operator first detects changes, reads current state, updates resources to match desired state, then updates the status.
An Operator logs an error when trying to update the status field of a custom resource. What is the most likely cause?
Check if the Operator has rights to update the status subresource specifically.
Updating the status field requires explicit permission on the status subresource in RBAC.
Choose the best practice to ensure an Operator handles failures gracefully.
Think about how to handle transient errors without overwhelming the system.
Exponential backoff retries prevent rapid repeated failures and allow recovery time, improving stability.