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Security L7 SECURITY-1510 · 12 min

An mTLS allowlist updates and one service still trusts the retired client CA because Envoy SDS serves the previous secret name during warmup

The new CA bundle exists, but one worker warm path still maps the older secret name.

SecurityTLSPlatform ReliabilityLevel 7Pro12 min
Scenario

One service continues trusting a retired client CA after allowlist rotation.

What to check first
  • Identify the primary failure signal in the TLS 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

Inspect SDS warmup and secret naming before reissuing service certs.

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.