You ran kubectl rollout history deployment/api but got an error: error: deployments.apps "api" not found. What is the most likely cause?

medium📝 Troubleshoot Q14 of 15

Kubernetes - ReplicaSets and Deployments

You ran kubectl rollout history deployment/api but got an error: error: deployments.apps "api" not found. What is the most likely cause?

AThe Kubernetes cluster is down.

BThe deployment named 'api' does not exist in the current namespace.

CYou need to add '--all-namespaces' to see the deployment.

DThe command syntax is incorrect; 'rollout history' is invalid.

Step-by-Step Solution

Solution:

Step 1: Understand the error message
The error says deployment "api" not found, meaning Kubernetes can't find that deployment in the current namespace.
Step 2: Check command and context
The command syntax is correct, and cluster down would cause different errors. Missing deployment is the most likely cause.
Final Answer:
The deployment named 'api' does not exist in the current namespace. -> Option B
Quick Check:
Deployment not found error = deployment missing [OK]

Quick Trick: Check deployment name and namespace if 'not found' error appears [OK]

Common Mistakes:

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