WIP: Add disruption check for Thanos Querier API #29391
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Discussed here #28737 (comment)
Thanos querier API is the principal/wrapping API to fetch metrics. Given all the consumers that depend on it, it would be interesting to see how it performs.
Uncertain if the SLO is achievable with the current config (a check every second) API adjustments may be needed to improve reliability, or we may need to loosen up the check
Based on Route dependency, which could increase the likelihood of false positives.
Auth isn't set; we only check for 401. A 5xx would indicate Route backend (Thanos Querier Pods) issues. We may be able to easily get token based auth to work