VMware Prometheus Alert Rules4 Prometheus alerting rules for VMware.Exported via pryorda/vmware_exporter.These rules cover critical and warning conditions — copy and paste the YAML into your Prometheus configuration.
Alert thresholds depend on the nature of your applications. Some queries may have arbitrary tolerance thresholds. Building an efficient monitoring platform takes time. 😉
groups:
- name: PryordaVmwareExporter
rules:
- alert: VirtualMachineMemoryCritical
expr: vmware_vm_mem_usage_average / 100 >= 95
for: 10m
labels:
severity: critical
annotations:
summary: Virtual Machine Memory Critical (instance {{ $labels.instance }})
description: "High memory usage on {{ $labels.instance }}: {{ $value | printf \"%.2f\"}}%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: VirtualMachineMemoryWarning
expr: vmware_vm_mem_usage_average / 100 >= 90 and vmware_vm_mem_usage_average / 100 < 95
for: 10m
labels:
severity: warning
annotations:
summary: Virtual Machine Memory Warning (instance {{ $labels.instance }})
description: "High memory usage on {{ $labels.instance }}: {{ $value | printf \"%.2f\"}}%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
# 3 snapshots is a rough default; how many snapshots are reasonable depends on your backup/retention policy — adjust based on your workflow.
- alert: HighNumberOfSnapshots
expr: vmware_vm_snapshots > 3
for: 30m
labels:
severity: warning
annotations:
summary: High Number of Snapshots (instance {{ $labels.instance }})
description: "High snapshots number on {{ $labels.instance }}: {{ $value }}\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
# 7 days is a rough default; how long a snapshot should live depends on your backup/retention policy — adjust based on your workflow.
- alert: OutdatedSnapshots
expr: (time() - vmware_vm_snapshot_timestamp_seconds) / (60 * 60 * 24) >= 7
for: 5m
labels:
severity: warning
annotations:
summary: Outdated Snapshots (instance {{ $labels.instance }})
description: "Outdated snapshots on {{ $labels.instance }}: {{ $value | printf \"%.0f\"}} days\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"pryorda/vmware_exporter(4 rules)wget https://raw.githubusercontent.com/samber/awesome-prometheus-alerts/refs/heads/master/dist/rules/vmware/pryorda-vmware-exporter.yml
High memory usage on {{ $labels.instance }}: {{ $value | printf "%.2f"}}%
- alert: VirtualMachineMemoryCritical
expr: vmware_vm_mem_usage_average / 100 >= 95
for: 10m
labels:
severity: critical
annotations:
summary: Virtual Machine Memory Critical (instance {{ $labels.instance }})
description: "High memory usage on {{ $labels.instance }}: {{ $value | printf \"%.2f\"}}%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"High memory usage on {{ $labels.instance }}: {{ $value | printf "%.2f"}}%
- alert: VirtualMachineMemoryWarning
expr: vmware_vm_mem_usage_average / 100 >= 90 and vmware_vm_mem_usage_average / 100 < 95
for: 10m
labels:
severity: warning
annotations:
summary: Virtual Machine Memory Warning (instance {{ $labels.instance }})
description: "High memory usage on {{ $labels.instance }}: {{ $value | printf \"%.2f\"}}%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"High snapshots number on {{ $labels.instance }}: {{ $value }}
# 3 snapshots is a rough default; how many snapshots are reasonable depends on your backup/retention policy — adjust based on your workflow.
- alert: HighNumberOfSnapshots
expr: vmware_vm_snapshots > 3
for: 30m
labels:
severity: warning
annotations:
summary: High Number of Snapshots (instance {{ $labels.instance }})
description: "High snapshots number on {{ $labels.instance }}: {{ $value }}\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"Outdated snapshots on {{ $labels.instance }}: {{ $value | printf "%.0f"}} days
# 7 days is a rough default; how long a snapshot should live depends on your backup/retention policy — adjust based on your workflow.
- alert: OutdatedSnapshots
expr: (time() - vmware_vm_snapshot_timestamp_seconds) / (60 * 60 * 24) >= 7
for: 5m
labels:
severity: warning
annotations:
summary: Outdated Snapshots (instance {{ $labels.instance }})
description: "Outdated snapshots on {{ $labels.instance }}: {{ $value | printf \"%.0f\"}} days\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"