executing-plans
executing-plans
Use when executing an implementation plan in the current session as the implementer yourself — your human partner chose inline execution, or no subagent tool is available
configure-alerting-rulesConfigure Prometheus Alertmanager with routing trees, receivers (Slack, PagerDuty, email), inhibition rules, silences, and notification templates for actionable incident alerting. Use when implementing proactive monitoring with automated incident detection, routing alerts to the appropriate team by severity, reducing alert fatigue through grouping and dedup…
Independent GitHub snapshot · Automated classification · Original documentation governs
設 Prometheus 之警則與 Alertmanager 為可信可行之事告。
見 Extended Examples 以全設檔與範。
裝設 Alertmanager 以受 Prometheus 之警。
Docker Compose 部(基構):
version: '3.8'
services:
alertmanager:
image: prom/alertmanager:v0.26.0
ports:
- "9093:9093"
volumes:
- ./alertmanager.yml:/etc/alertmanager/alertmanager.yml
# ... (see EXAMPLES.md for complete configuration)
基 Alertmanager 設(alertmanager.yml 摘):
global:
resolve_timeout: 5m
slack_api_url: 'https://hooks.slack.com/services/YOUR/SLACK/WEBHOOK'
route:
receiver: 'default-receiver'
group_by: ['alertname', 'cluster', 'service']
group_wait: 30s
group_interval: 5m
repeat_interval: 4h
routes:
- match:
severity: critical
receiver: pagerduty-critical
# ... (see EXAMPLES.md for complete routing, inhibition rules, and receivers)
設 Prometheus 用 Alertmanager(prometheus.yml):
alerting:
alertmanagers:
- static_configs:
- targets:
- alertmanager:9093
timeout: 10s
api_version: v2
得: Alertmanager UI 於 http://localhost:9093 可訪,Prometheus「Status > Alertmanagers」示 UP。
敗則:
docker logs alertmanagercurl http://alertmanager:9093/api/v2/statuscurl -X POST <SLACK_WEBHOOK_URL> -d '{"text":"test"}'amtool check-config alertmanager.yml建警則,條件滿則發。
建警則檔(/etc/prometheus/rules/alerts.yml 摘):
groups:
- name: instance_alerts
interval: 30s
rules:
- alert: InstanceDown
expr: up == 0
for: 5m
labels:
severity: critical
team: infrastructure
annotations:
summary: "Instance {{ $labels.instance }} is down"
description: "{{ $labels.instance }} has been down for >5min."
runbook_url: "https://wiki.example.com/runbooks/instance-down"
- alert: HighCPUUsage
expr: 100 - (avg by(instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 80
for: 10m
labels:
severity: warning
annotations:
summary: "High CPU usage on {{ $labels.instance }}"
# ... (see EXAMPLES.md for complete alerts)
警設之善實:
for 之時:防警抖。多數警用五至十分。載則於 Prometheus:
# prometheus.yml
rule_files:
- "rules/*.yml"
驗而重載:
promtool check rules /etc/prometheus/rules/alerts.yml
curl -X POST http://localhost:9090/-/reload
得: 警見於 Prometheus 之「Alerts」頁,越閾時發,Alertmanager 受之。
敗則:
promtool check rules 驗則法設可讀可行之告訊。
建範檔(/etc/alertmanager/templates/default.tmpl 摘):
{{ define "slack.default.title" }}
[{{ .Status | toUpper }}] {{ .GroupLabels.alertname }}
{{ end }}
{{ define "slack.default.text" }}
{{ range .Alerts }}
*Alert:* {{ .Labels.alertname }}
*Severity:* {{ .Labels.severity }}
*Summary:* {{ .Annotations.summary }}
{{ if .Annotations.runbook_url }}*Runbook:* {{ .Annotations.runbook_url }}{{ end }}
{{ end }}
{{ end }}
# ... (see EXAMPLES.md for complete email and PagerDuty templates)
於受者用範:
receivers:
- name: 'slack-custom'
slack_configs:
- channel: '#alerts'
title: '{{ template "slack.default.title" . }}'
text: '{{ template "slack.default.text" . }}'
得: 告一式,含相關境,附行冊鏈以可行。
敗則:
amtool template test --config.file=alertmanager.yml{{ . | json }} 以調範資之構以智路則優送警。
進路設(摘):
route:
receiver: 'default-receiver'
group_by: ['alertname', 'cluster', 'service']
group_wait: 30s
routes:
- match:
team: platform
receiver: 'team-platform'
routes:
- match:
severity: critical
receiver: 'pagerduty-platform'
group_wait: 10s
repeat_interval: 15m
continue: true # Also send to Slack
# ... (see EXAMPLES.md for complete routing with time intervals)
聚之策:
# Group by alertname: All HighCPU alerts bundled together
group_by: ['alertname']
# Group by alertname AND cluster: Separate notifications per cluster
group_by: ['alertname', 'cluster']
得: 警路至正團,聚理合,時合於重。
敗則:
amtool config routes test --config.file=alertmanager.yml --alertname=HighCPU --label=severity=criticalamtool config routes show --config.file=alertmanager.ymlcontinue: true以抑則與暫默減警噪。
抑則(壓依警):
inhibit_rules:
# Cluster down suppresses all node alerts in that cluster
- source_match:
alertname: 'ClusterDown'
severity: 'critical'
target_match_re:
alertname: '(InstanceDown|HighCPU|HighMemory)'
equal: ['cluster']
# Service down suppresses latency and error alerts
- source_match:
alertname: 'ServiceDown'
target_match_re:
alertname: '(HighLatency|HighErrorRate)'
equal: ['service', 'namespace']
# ... (see EXAMPLES.md for more inhibition patterns)
以程建默:
# Silence during maintenance
amtool silence add \
instance=app-server-1 \
--author="ops-team" \
--comment="Scheduled maintenance" \
--duration=2h
# List and manage silences
amtool silence query
amtool silence expire <SILENCE_ID>
得: 抑自減連警,默於謀之養時防告。
敗則:
連 Alertmanager 於 PagerDuty、Opsgenie、Jira 等。
PagerDuty 合(摘):
receivers:
- name: 'pagerduty'
pagerduty_configs:
- routing_key: 'YOUR_INTEGRATION_KEY'
severity: '{{ .CommonLabels.severity }}'
description: '{{ range .Alerts.Firing }}{{ .Annotations.summary }}{{ end }}'
details:
firing: '{{ .Alerts.Firing | len }}'
alertname: '{{ .GroupLabels.alertname }}'
# ... (see EXAMPLES.md for complete integration examples)
Webhook 為自定合:
receivers:
- name: 'webhook-custom'
webhook_configs:
- url: 'https://your-webhook-endpoint.com/alerts'
send_resolved: true
得: 警於 PagerDuty 建事,現於團通道,發值班升。
敗則:
--log.level=debugfor 之時:無 for 之警於瞬峰發。必用五至十分之窗。['...'] 聚送獨告。用特標聚。setup-prometheus-monitoring - 定供警則之量與錄則define-slo-sli-sla - 生 SLO 燃率警以治誤預write-incident-runbook - 建警註所鏈之行冊build-grafana-dashboards - 視警發史與默式