refine CloudWatch alert thresholds and severity labels#152
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ian-flores merged 1 commit intomainfrom Mar 3, 2026
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- Add severity: warning to all alerts missing it (CPU utilization, free storage, freeable memory, database connections, ALB/NLB targets, ALB 5XX errors, ALB response latency) - Delete NAT Gateway alerts (port allocation errors, packets dropped) - Delete RDS Read Latency High alert - Reduce ALB/NLB Unhealthy Targets window from 10m to 5m - Lower RDS Database Connections threshold from 500 to 80; unpause alert - Note why RDS Free Storage and Freeable Memory remain as absolute byte thresholds (CloudWatch lacks AllocatedStorage/total RAM as metrics)
amdove
approved these changes
Mar 3, 2026
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Description
Follow-up to #139. Refines the CloudWatch Grafana alerts based on review feedback.
Changes:
severity: warningto all alerts that were missing it (RDS CPU utilization, free storage, freeable memory, database connections; ALB/NLB unhealthy targets, ALB 5XX errors, ALB response latency)AllocatedStorageor total instance RAM as time-series metrics for RDS, making percentage-based thresholds infeasible without a separate exporterCategory of change