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annotate alert_rules.py @ 67:adde35eb4773
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| author | drewp@bigasterisk.com |
|---|---|
| date | Fri, 03 May 2024 11:21:08 -0700 |
| parents | next/alert_rules.py@8134cd480817 |
| children | 009527a145d0 |
| rev | line source |
|---|---|
| 23 | 1 """ |
| 2 pdm run invoke push-config | |
| 3 | |
| 4 docs: https://prometheus.io/docs/prometheus/latest/configuration/alerting_rules/ | |
| 5 "Whenever the alert expression results in one or more vector | |
| 6 elements at a given point in time, the alert counts as active for | |
| 7 these elements' label sets." | |
| 8 also https://www.metricfire.com/blog/top-5-prometheus-alertmanager-gotchas/#Missing-metrics | |
| 9 | |
| 10 """ | |
| 11 | |
| 12 import json | |
| 13 | |
| 14 | |
| 49 | 15 def pomRules(): |
| 16 return [ | |
| 17 { | |
| 18 "alert": "frequent_upstream_connect_failures", | |
|
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19 "expr": "max_over_time(rate(sum by (envoy_cluster_name) (envoy_cluster_upstream_cx_connect_fail))[1h]) > 0" |
| 49 | 20 }, |
| 21 { | |
| 22 "alert": "high_logging_pomerium", | |
| 23 "for": "3h", | |
| 24 "labels": { | |
| 25 "severity": "waste" | |
| 26 }, | |
| 27 "expr": 'sum by (container) (rate(kubelet_container_log_filesystem_used_bytes{container="pomerium"}[3h])) > 8k', | |
| 28 "annotations": { | |
| 29 "summary": "high log output rate" | |
| 30 }, | |
| 31 }, | |
| 32 ] | |
| 33 | |
| 34 | |
| 23 | 35 def k8sRules(): |
| 36 # from https://awesome-prometheus-alerts.grep.to/rules.html | |
| 37 return [ | |
| 38 { | |
| 34 | 39 "alert": "metricsTargetMissing", |
| 40 "expr": 'up{job!~"cm-acme-.*"} == 0', | |
| 36 | 41 'for': '10m', |
| 31 | 42 "labels": { |
| 43 "severity": "critical" | |
| 44 }, | |
| 23 | 45 "annotations": { |
| 34 | 46 "summary": "metrics target missing (instance {{ $labels.instance }})", |
| 47 "description": "A metrics target has disappeared. An exporter might be crashed.\n VALUE = {{ $value }}", | |
| 23 | 48 }, |
| 49 }, | |
| 50 { | |
| 51 "alert": "KubernetesMemoryPressure", | |
| 52 "expr": 'kube_node_status_condition{condition="MemoryPressure",status="true"} == 1', | |
| 53 "for": "2m", | |
| 31 | 54 "labels": { |
| 55 "severity": "critical" | |
| 56 }, | |
| 23 | 57 "annotations": { |
| 58 "summary": "Kubernetes memory pressure (instance {{ $labels.instance }})", | |
| 59 "description": "{{ $labels.node }} has MemoryPressure condition\n VALUE = {{ $value }}", | |
| 60 }, | |
| 61 }, | |
| 62 { | |
| 63 "alert": "KubernetesDiskPressure", | |
| 64 "expr": 'kube_node_status_condition{condition="DiskPressure",status="true"} == 1', | |
| 65 "for": "2m", | |
| 31 | 66 "labels": { |
| 67 "severity": "critical" | |
| 68 }, | |
| 23 | 69 "annotations": { |
| 70 "summary": "Kubernetes disk pressure (instance {{ $labels.instance }})", | |
| 71 "description": "{{ $labels.node }} has DiskPressure condition\n VALUE = {{ $value }}", | |
| 72 }, | |
| 73 }, | |
| 74 { | |
| 75 "alert": "KubernetesOutOfDisk", | |
| 76 "expr": 'kube_node_status_condition{condition="OutOfDisk",status="true"} == 1', | |
| 77 "for": "2m", | |
| 31 | 78 "labels": { |
| 79 "severity": "critical" | |
| 80 }, | |
| 23 | 81 "annotations": { |
| 82 "summary": "Kubernetes out of disk (instance {{ $labels.instance }})", | |
| 83 "description": "{{ $labels.node }} has OutOfDisk condition\n VALUE = {{ $value }}", | |
| 84 }, | |
| 85 }, | |
| 86 { | |
| 87 "alert": "KubernetesJobFailed", | |
| 88 "expr": "kube_job_status_failed > 0", | |
| 31 | 89 "labels": { |
| 90 "severity": "warning" | |
| 91 }, | |
| 23 | 92 "annotations": { |
| 93 "summary": "Kubernetes Job failed (instance {{ $labels.instance }})", | |
| 94 "description": "Job {{$labels.namespace}}/{{$labels.exported_job}} failed to complete\n VALUE = {{ $value }}", | |
| 95 }, | |
| 96 }, | |
| 97 { | |
| 98 "alert": "KubernetesPodCrashLooping", | |
| 99 "expr": "increase(kube_pod_container_status_restarts_total[1m]) > 3", | |
| 100 "for": "2m", | |
| 31 | 101 "labels": { |
| 102 "severity": "warning" | |
| 103 }, | |
| 23 | 104 "annotations": { |
| 105 "summary": "Kubernetes pod crash looping (instance {{ $labels.instance }})", | |
| 106 "description": "Pod {{ $labels.pod }} is crash looping\n VALUE = {{ $value }}", | |
| 107 }, | |
| 108 }, | |
| 109 { | |
| 48 | 110 "alert": "KubernetesClientCertificateExpiresNextWeek", |
| 111 "expr": 'apiserver_client_certificate_expiration_seconds_count{job="apiserver"} > 0 and histogram_quantile(0.01, sum by (job, le) (rate(apiserver_client_certificate_expiration_seconds_bucket{job="apiserver"}[5m]))) < 7*24*60*60', | |
| 31 | 112 "labels": { |
| 113 "severity": "warning" | |
| 114 }, | |
| 23 | 115 "annotations": { |
| 116 "summary": "Kubernetes client certificate expires next week (instance {{ $labels.instance }})", | |
| 117 "description": "A client certificate used to authenticate to the apiserver is expiring next week.\n VALUE = {{ $value }}", | |
| 118 }, | |
| 119 }, | |
| 120 { | |
| 121 "alert": "container_waiting", | |
| 34 | 122 "expr": "sum by (namespace, pod, container)(kube_pod_container_status_waiting!=0)", |
| 123 "annotations": { | |
| 124 "description": '', | |
| 125 "dashboard": "https://bigasterisk.com/k/clusters/local/namespaces/{{ $labels.namespace }}/pods/{{ $labels.pod }}", | |
| 126 }, | |
| 23 | 127 "for": "2m", |
| 128 }, | |
| 129 ] | |
| 130 | |
| 131 | |
|
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132 def allRules(ctx): |
| 23 | 133 return { |
| 134 "groups": [ | |
| 135 { | |
| 136 "name": "k8s", | |
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137 "interval": "1m", |
| 23 | 138 "rules": k8sRules(), |
| 139 }, | |
| 140 { | |
| 49 | 141 "name": "pomerium_proxy", |
| 142 "interval": "1m", | |
| 143 "rules": pomRules(), | |
| 144 }, | |
| 145 { | |
| 31 | 146 "name": |
| 147 "Outages", | |
| 148 "interval": | |
| 149 "1m", | |
| 23 | 150 "rules": [ |
| 151 { | |
| 152 "alert": "powereagleStalled", | |
| 153 "expr": "rate(house_power_w[100m]) == 0", | |
| 154 "for": "0m", | |
| 31 | 155 "labels": { |
| 156 "severity": "losingData" | |
| 157 }, | |
| 23 | 158 "annotations": { |
| 159 "summary": "power eagle data stalled", | |
| 160 "description": "logs at https://bigasterisk.com/k/clusters/local/namespaces/default/deployments/power-eagle/logs", | |
| 161 }, | |
| 162 }, | |
| 163 { | |
| 164 "alert": "powereagleAbsent", | |
| 165 "expr": "absent_over_time(house_power_w[5m])", | |
| 166 "for": "2m", | |
| 31 | 167 "labels": { |
| 168 "severity": "losingData" | |
| 169 }, | |
| 23 | 170 "annotations": { |
| 171 "summary": "power eagle data missing", | |
| 172 "description": "logs at https://bigasterisk.com/k/clusters/local/namespaces/default/deployments/power-eagle/logs", | |
| 173 }, | |
| 174 }, | |
| 175 { | |
| 176 "alert": "absent_zigbee", | |
| 177 "expr": 'absent(container_last_seen{container="zigbee2mqtt"})', | |
| 178 }, | |
| 179 { | |
| 180 "alert": "net_routes_sync", | |
| 181 "expr": 'rate(starlette_request_duration_seconds_count{app_name="net_routes",path="/routes"}[5m]) < 1/70', | |
| 182 "for": "10m", | |
| 31 | 183 "labels": { |
| 184 "severity": "houseUsersAffected" | |
| 185 }, | |
| 23 | 186 "annotations": { |
| 187 "summary": "net_routes is not getting regular updates" | |
| 188 }, | |
| 189 }, | |
| 190 ], | |
| 191 }, | |
| 192 { | |
| 48 | 193 "name": "disk_errs", |
| 194 "interval": "2d", | |
| 31 | 195 "rules": [{ |
| 36 | 196 "alert": "zpool_device_error_increase", |
| 197 "labels": { | |
| 198 "severity": "warning" | |
| 199 }, | |
| 200 "expr": 'increase(zpool_device_error_count[3d]) > 0', | |
| 201 }, { | |
| 31 | 202 "alert": "zpool_device_error_count", |
| 203 "labels": { | |
| 204 "severity": "warning" | |
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205 }, |
| 36 | 206 "expr": 'zpool_device_error_count > 0', |
| 31 | 207 }], |
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208 }, |
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209 { |
| 49 | 210 "name": "lighting", |
| 211 "interval": "5m", | |
| 212 "rules": [{ | |
| 213 "alert": "light_bridge_no_mqtt", | |
| 214 "expr": 'mqtt_connected{job="light-bridge"} != 1', | |
| 215 }], | |
| 216 }, | |
| 217 { | |
| 31 | 218 "name": |
| 34 | 219 "front_door", |
| 220 "interval": | |
| 221 "5m", | |
| 222 "rules": [ | |
| 223 { | |
| 36 | 224 "alert": "front_door_reader_esp32_no_mqtt", |
| 225 'expr': 'hw_connected{job="fingerprint"} < 1', | |
| 226 "annotations": { | |
| 227 "summary": "see https://bigasterisk.com/front-door-lock/" | |
| 228 }, | |
| 229 }, | |
| 230 { | |
| 48 | 231 "alert": "front_door_reader_svc_down", |
| 36 | 232 'expr': 'up{job="fingerprint"} < 1', |
| 233 "annotations": { | |
| 234 "summary": "see https://bigasterisk.com/front-door-lock/" | |
| 235 }, | |
| 236 }, | |
| 237 { | |
| 48 | 238 "alert": "front_door_reader_svc_reader_no_mqtt", |
| 36 | 239 'expr': 'mqtt_connected{job="fingerprint"} < 1', |
| 240 "annotations": { | |
| 241 "summary": "see https://bigasterisk.com/front-door-lock/" | |
| 242 }, | |
| 34 | 243 }, |
| 244 { | |
| 36 | 245 "alert": "front_door_lock_svc_down", |
| 246 'expr': 'up{job="front-door-lock"} < 1', | |
| 247 "annotations": { | |
| 248 "summary": "see https://bigasterisk.com/front-door-lock/" | |
| 249 }, | |
| 34 | 250 }, |
| 36 | 251 { |
| 252 "alert": "front_door_lock_svc_no_mqtt", | |
| 253 'expr': 'mqtt_connected{job="front-door-lock"} < 1', | |
| 254 "annotations": { | |
| 255 "summary": "see https://bigasterisk.com/front-door-lock/" | |
| 256 }, | |
| 257 }, | |
| 258 { | |
| 259 "alert": "front_door_lock_esp32_no_mqtt", | |
| 260 'expr': 'hw_connected{job="front-door-lock"} < 1', | |
| 261 "annotations": { | |
| 262 "summary": "see https://bigasterisk.com/front-door-lock/" | |
| 263 }, | |
| 264 }, | |
| 265 ], | |
| 34 | 266 }, |
| 267 { | |
| 49 | 268 "name": |
| 269 "net_routes", | |
| 270 "interval": | |
| 271 "5m", | |
| 272 "rules": [ | |
| 273 { | |
| 274 "alert": "no_house_ip_service", | |
| 275 "expr": 'absent(kube_service_spec_external_ip{service="net-route-input-allowed",external_ip="10.2.0.133"})' | |
| 276 }, | |
| 277 { | |
| 278 "alert": "no_net_routes_running", | |
| 279 "expr": 'absent(python_info{job="net-routes"})' | |
| 280 }, | |
| 281 { | |
| 282 "alert": "allowed_check_never_returned_200", | |
| 283 'expr': 'starlette_requests_total{app_name="net_route_input",method="GET",path="/api/allowed",status_code="200"} < 1' | |
| 284 }, | |
| 285 { | |
| 286 "alert": "allowed_check_never_returned_403", | |
| 287 'expr': 'starlette_requests_total{app_name="net_route_input",method="GET",path="/api/allowed",status_code="403"} < 1' | |
| 288 }, | |
| 289 { | |
| 290 'alert': 'net_route_input_eval_cal_loop_is_down', | |
| 291 'expr': 'eval_cal_up!=1' | |
| 292 }, | |
| 293 { | |
| 294 'alert': 'net_route_input_mongo_loop_is_down', | |
| 295 'expr': 'mongo_to_net_routes_up!=1' | |
| 296 }, | |
| 297 { | |
| 298 'alert': 'gcalendarwatch_hasnt_succeeded_on_any_currentEvents_requests', | |
| 299 'expr': 'starlette_requests_total{app_name="gcalendarwatch",method="GET",path="/graph/currentEvents",status_code="200"} < 1' | |
| 300 }, | |
| 301 { | |
| 302 'alert': 'gcalendarwatch_current_events_loop_is_down', | |
| 303 'expr': 'current_events_up != 1' | |
| 304 }, | |
| 305 ], | |
| 306 }, | |
| 307 { | |
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308 "name": "http", |
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309 "interval": "1h", |
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310 'rules': [ |
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311 { |
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312 'alert': 'old_https_certs', |
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313 'expr': 'min by (source) (x509_cert_enddate - now())/86400 < 15', |
| 48 | 314 }, |
| 315 { | |
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316 'alert': 'high_500_response_rate', |
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317 'expr': 'avg_over_time(rate(sum by (envoy_cluster_name) (envoy_cluster_internal_upstream_rq_xx{envoy_response_code_class="5"})[20m])) > 0.02', |
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318 }, |
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319 ], |
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320 }, |
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321 { |
| 42 | 322 "name": "ping", |
| 323 "interval": "1m", | |
| 324 "rules": [{ | |
| 325 "alert": "ping_failed", | |
| 326 "expr": 'max_over_time(probe_success{job="ping"}[1m]) < 1', | |
| 327 }] | |
| 328 }, | |
| 329 { | |
| 34 | 330 "name": |
| 31 | 331 "alerts", |
| 23 | 332 "rules": [ |
| 333 { | |
| 334 "alert": "kube_node_status_bad_condition", | |
| 335 "for": "2h", | |
| 31 | 336 "labels": { |
| 337 "severity": "warning" | |
| 338 }, | |
| 23 | 339 "expr": 'kube_node_status_condition{condition=~".*Pressure",status="true"} > 0', |
| 340 }, | |
| 341 { | |
| 342 "alert": "housePower", | |
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343 "for": "1h", |
| 31 | 344 "labels": { |
| 345 "severity": "waste" | |
| 346 }, | |
| 23 | 347 "expr": "house_power_w > 4000", |
| 31 | 348 "annotations": { |
| 349 "summary": "house power usage over 4KW" | |
| 350 }, | |
| 23 | 351 }, |
| 352 { | |
| 353 "alert": "host_root_fs_space_low", | |
| 354 "for": "20m", | |
| 31 | 355 "labels": { |
| 356 "severity": "warning" | |
| 357 }, | |
| 34 | 358 "expr": 'disk_free{host!="garage",path="/"} < 20G', |
| 23 | 359 }, |
| 360 { | |
| 361 "alert": "zpool_space_low", | |
| 362 "for": "20m", | |
| 31 | 363 "labels": { |
| 364 "severity": "warning" | |
| 365 }, | |
| 23 | 366 "expr": 'last_over_time(zfs_pool_free_bytes{pool="stor7"}[1h]) < 100G', |
| 367 }, | |
| 368 { | |
| 369 "alert": "disk_week_incr", | |
| 370 "for": "20m", | |
| 31 | 371 "labels": { |
| 372 "severity": "warning" | |
| 373 }, | |
| 23 | 374 "expr": 'round(increase(disk_used{path=~"/my/.*"}[1d])/1M) > 5000', |
| 31 | 375 "annotations": { |
| 376 "summary": "high mb/week on zfs dir" | |
| 377 }, | |
| 23 | 378 }, |
| 379 { | |
| 380 "alert": "high_logging", | |
| 31 | 381 "for": "3h", |
| 382 "labels": { | |
| 383 "severity": "waste" | |
| 384 }, | |
| 49 | 385 "expr": 'sum by (container) (rate(kubelet_container_log_filesystem_used_bytes{container!="pomerium"}[3h])) > 4k', |
| 31 | 386 "annotations": { |
| 387 "summary": "high log output rate" | |
| 388 }, | |
| 23 | 389 }, |
| 390 { | |
| 391 "alert": "stale_process", | |
| 392 "for": "1d", | |
| 31 | 393 "labels": { |
| 394 "severity": "dataRisk" | |
| 395 }, | |
| 23 | 396 "expr": "round((time() - filestat_modification_time/1e9) / 86400) > 14", |
| 31 | 397 "annotations": { |
| 398 "summary": "process time is old" | |
| 399 }, | |
| 23 | 400 }, |
| 401 { | |
| 402 "alert": "starlette", | |
| 403 "for": "1m", | |
| 31 | 404 "labels": { |
| 405 "severity": "fix" | |
| 406 }, | |
| 23 | 407 "expr": 'starlette_request_duration_seconds_created{app_name="starlette"}', |
| 31 | 408 "annotations": { |
| 409 "summary": "set starlette app name" | |
| 410 }, | |
| 23 | 411 }, |
| 412 { | |
| 413 "alert": "ssl_certs_expiring_soon", | |
| 414 "expr": "min((min_over_time(probe_ssl_earliest_cert_expiry[1d])-time())/86400) < 10", | |
| 31 | 415 "labels": { |
| 416 "severity": "warning" | |
| 417 }, | |
| 23 | 418 "annotations": { |
| 419 "summary": "cert expiring soon. See https://bigasterisk.com/grafana/d/z1YtDa3Gz/certs?orgId=1\nVALUE = {{ $value }}" | |
| 420 }, | |
| 421 }, | |
| 422 ], | |
| 423 }, | |
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424 ] + hostsExpectedOnline(ctx)['groups'] |
| 23 | 425 } |
| 426 | |
| 427 | |
| 428 def _runJson(ctx, cmd): | |
| 429 return json.loads(ctx.run(cmd, hide="stdout").stdout) | |
| 430 | |
| 431 | |
| 432 def hostsExpectedOnline(ctx): | |
| 433 return _runJson(ctx, "cd /my/serv/lanscape; pdm run python hosts_expected_online.py") |