prometheus-rule-redis.yaml

apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  labels:
    prometheus: prometheus-backends
    role: alert-rules
  name: azure-monitoring-redis-rules
  namespace: admin
spec:
  groups:
  - name: azure-monitoring-redis-rules
    rules:

    - alert: Redis_Errors
      annotations:
        description: |
          There are {{$value | printf "%.0f" }} errors on {{$labels.ressource_uri}}
        title: Redis {{$labels.ressource_uri}} errors
      expr: |-
        azure_redis_cache_errors > 0
      for: 1m
      labels:
        severity: warning

    - alert: Redis_ServerLoadTooHigh
      annotations:
        description: |
          Server load redis reached {{$value | printf "%.2f" }}% for 5 minutes on {{$labels.ressource_uri}}
          If this counter reaches 100 it means the Redis server has hit a performance ceiling and the CPU can't process work any faster.
        title: Redis Server Load is high on {{$labels.ressource_uri}}
      expr: |
        azure_redis_cache_server_load > 80
      for: 5m
      labels:
        severity: warning

    - alert: Redis_CPUTooHigh
      annotations:
        description: |
          CPU redis reached {{$value | printf "%.2f" }}% for 5 minutes on {{$labels.ressource_uri}}
        title: Redis CPU is high on {{$labels.ressource_uri}}
      expr: |
        azure_redis_cache_percent_processor_time > 80
      for: 5m
      labels:
        severity: warning