CGOA Gitops Patterns Practice Question
You are implementing progressive delivery with Flagger. You notice that the canary analysis is failing despite the new version being stable. What is the most common reason for this?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The Prometheus query for success rate is returning no data.
Flagger requires specific metrics (like HTTP request success rate) to be present to validate a canary. If the metrics provider (e.g., Prometheus) is not configured, the analysis cannot proceed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The deployment strategy is set to 'Immediate' instead of 'Canary'.
Why it's wrong here
The 'Immediate' strategy is not a valid progressive delivery option in Flagger.
- ✓
The Prometheus query for success rate is returning no data.
Why this is correct
If Flagger cannot retrieve the metrics defined in the analysis template, it defaults to a failed state.
- ✗
The Git repository is in read-only mode.
Why it's wrong here
Flagger updates the status, but it doesn't necessarily require write access to the main manifest repo for analysis.
- ✗
The service mesh sidecar is missing the 'canary' annotation.
Why it's wrong here
While important, this would cause the deployment to never start, not fail the analysis.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official CNCF / Linux Foundation exam blueprint
This CGOA practice question is part of Courseiva's free CNCF / Linux Foundation certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CGOA exam.