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K8s L5 K8S 1472 · 10 min

A cert-manager HTTP01 challenge reaches the ingress and still fails because an NGINX canary annotation rewrites only the challenge path

The solver service exists, but one annotation routes the ACME path to the wrong backend branch.

K8sPlatform ReliabilityLevel 5Pro10 min
Scenario

Certificate issuance fails only after canary ingress annotations are added for a blue-green rollout.

What to check first
  • Identify the primary failure signal in the The Challenge Reached the Ingress and the Canary Signpost Sent It Down the Wrong Hallway scenario.
  • Separate visible symptoms from the underlying technical dependency.
  • Describe the safest recovery path and the follow-up prevention work.
Checking checklist
  1. Summarize the current impact and the last known change.
  2. Collect direct evidence from logs, runtime state, and configuration before changing anything.
  3. Separate immediate recovery from permanent prevention work.
Recovery and prevention

Compare ACME path routing and canary annotations before changing DNS or solver pods.

Questions worth viewing together
Should I translate commands, logs, or product names?

No. Keep commands, logs, file names, APIs, and product names unchanged, then explain the reasoning in the selected UI language.

What should the answer focus on?

State the root cause, the evidence that supports it, and the safest recovery direction.

Why can the scenario remain in the original language?

The source scenario is treated as an incident artifact. Guidance, checklist, hints, and explanations can be localized around it.