istio_citadel_server_cert_chain_expiry_timestamp
[OpenMetrics V1 and V2] The unix timestamp (in seconds) when Citadel cert chain will expire. Negative in case of internal errorDimensions:None
Available on:
Datadog (1)
Interface Metrics (1)
Dimensions:None
Related Insights (1)
mTLS Certificate Expiration Cascadecritical
Expired or failing-to-rotate certificates cause widespread service-to-service authentication failures, resulting in complete traffic loss between services when mTLS is in STRICT mode.
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