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@ -1,9 +1,10 @@
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import { sendAnalyticWebhook, sendInfoWebhook, InfoAlert, AnalyticAlert, WebhookType } from './notification_service'; |
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import { sendNotification, InfoMeta, AnalyticMeta, WebhookType, Notification } from './notification_service'; |
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import * as _ from 'lodash'; |
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import * as AnalyticUnit from '../models/analytic_units'; |
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import { Segment } from '../models/segment_model'; |
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import { availableReporter } from '../utils/reporter'; |
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import { ORG_ID } from '../config'; |
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export class Alert { |
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@ -11,24 +12,43 @@ export class Alert {
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constructor(protected analyticUnit: AnalyticUnit.AnalyticUnit) {}; |
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public receive(segment: Segment) { |
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if(this.enabled) { |
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const alert = this.makeAlert(segment); |
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sendAnalyticWebhook(alert); |
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sendNotification(this.makeNotification(segment)); |
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} |
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}; |
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protected makeAlert(segment): AnalyticAlert { |
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const alert: AnalyticAlert = { |
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protected makeNotification(segment: Segment): Notification { |
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const meta = this.makeMeta(segment); |
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const message = this.makeMessage(meta); |
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return { meta, message }; |
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} |
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protected makeMeta(segment: Segment): AnalyticMeta { |
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const datshdoardId = this.analyticUnit.panelId.split('/')[0]; |
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const panelId = this.analyticUnit.panelId.split('/')[1]; |
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const grafanaUrl = `${this.analyticUnit.grafanaUrl}/d/${datshdoardId}?panelId=${panelId}&edit=true&fullscreen=true?orgId=${ORG_ID}`; |
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const alert: AnalyticMeta = { |
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type: WebhookType.DETECT, |
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analyticUnitType: this.analyticUnit.type, |
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analyticUnitName: this.analyticUnit.name, |
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analyticUnitId: this.analyticUnit.id, |
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grafanaUrl: this.analyticUnit.grafanaUrl, |
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grafanaUrl, |
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from: segment.from, |
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to: segment.to
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}; |
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return alert; |
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} |
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protected makeMessage(meta: AnalyticMeta): string { |
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return [ |
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`[${meta.analyticUnitType.toUpperCase()} ALERTING] ${meta.analyticUnitName}`, |
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`URL: ${meta.grafanaUrl}`, |
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``, |
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`From: ${new Date(meta.from)}`, |
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`To: ${new Date(meta.to)}`, |
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`ID: ${meta.analyticUnitId}` |
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].join('\n'); |
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} |
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} |
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class PatternAlert extends Alert { |
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@ -39,14 +59,27 @@ class PatternAlert extends Alert {
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if(this.lastSentSegment === undefined || !segment.equals(this.lastSentSegment) ) { |
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this.lastSentSegment = segment; |
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if(this.enabled) { |
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sendAnalyticWebhook(this.makeAlert(segment)); |
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sendNotification(this.makeNotification(segment)); |
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} |
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} |
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} |
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protected makeMessage(meta: AnalyticMeta): string { |
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return [ |
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`[PATTERN DETECTED] ${meta.analyticUnitName}`, |
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`URL: ${meta.grafanaUrl}`, |
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``, |
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`From: ${new Date(meta.from)}`, |
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`To: ${new Date(meta.to)}`, |
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`ID: ${meta.analyticUnitId}` |
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].join('\n'); |
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} |
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}; |
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class ThresholdAlert extends Alert { |
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// TODO: configure threshold timing in panel like Grafana's alerts (`evaluate` time, `for` time)
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// TODO: make events for start and end of threshold
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EXPIRE_PERIOD_MS = 60000; |
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lastOccurence = 0; |
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@ -54,31 +87,60 @@ class ThresholdAlert extends Alert {
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if(this.lastOccurence === 0) { |
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this.lastOccurence = segment.from; |
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if(this.enabled) { |
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sendAnalyticWebhook(this.makeAlert(segment)); |
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sendNotification(this.makeNotification(segment)); |
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} |
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} else { |
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if(segment.from - this.lastOccurence > this.EXPIRE_PERIOD_MS) { |
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if(this.enabled) { |
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console.log(`time between threshold occurences ${segment.from - this.lastOccurence}ms, send alert`); |
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sendAnalyticWebhook(this.makeAlert(segment)); |
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sendNotification(this.makeNotification(segment)); |
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} |
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} |
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this.lastOccurence = segment.from; |
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} |
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} |
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protected makeMessage(meta: AnalyticMeta): string { |
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let message = [ |
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`[THRESHOLD ALERTING] ${meta.analyticUnitName}`, |
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`URL: ${meta.grafanaUrl}`, |
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``, |
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`Starts at: ${new Date(meta.from)}`, |
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`ID: ${meta.analyticUnitId}` |
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].join('\n'); |
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if(meta.params !== undefined) { |
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const metrics = ` |
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Metrics: |
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${this.analyticUnit.metric.targets[0].expr}: ${meta.params.value} |
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`;
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message += metrics; |
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} |
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return message; |
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} |
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} |
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export class AlertService { |
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private _alerts: { [id: string]: Alert; }; |
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// TODO: object -> Map
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private _alerts: { [id: string]: Alert }; |
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private _alertingEnable: boolean; |
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private _grafanaAvailableReporter: Function; |
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private _datasourceAvailableReporters: Map<string, Function>; |
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constructor() { |
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this._alerts = {} |
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this._alerts = {}; |
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this._datasourceAvailableReporters = new Map(); |
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this._grafanaAvailableReporter = availableReporter( |
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['[OK] Grafana available', WebhookType.RECOVERY], |
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['[FAILURE] Grafana unavailable for pulling data', WebhookType.FAILURE], |
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this.sendMsg, |
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this.sendMsg |
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); |
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} |
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public receiveAlert(analyticUnit: AnalyticUnit.AnalyticUnit, segment: Segment) { |
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@ -97,46 +159,41 @@ export class AlertService {
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public sendMsg(message: string, type: WebhookType, optionalInfo = {}) { |
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const now = Date.now(); |
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const infoAlert: InfoAlert = { |
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message, |
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const infoAlert: InfoMeta = { |
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params: optionalInfo, |
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type, |
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from: now, |
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to: now |
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} |
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sendInfoWebhook(infoAlert); |
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sendNotification({ message, meta: infoAlert }); |
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} |
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public getGrafanaAvailableReporter() { |
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if(!this._grafanaAvailableReporter) { |
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this._grafanaAvailableReporter = availableReporter( |
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['Grafana available', WebhookType.RECOVERY], |
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['Grafana unavailable for pulling data', WebhookType.FAILURE], |
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this.sendMsg, |
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this.sendMsg |
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); |
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} |
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return this._grafanaAvailableReporter; |
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public sendGrafanaAvailableWebhook() { |
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this._grafanaAvailableReporter(true); |
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} |
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public sendGrafanaUnavailableWebhook() { |
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this._grafanaAvailableReporter(false); |
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} |
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public getAvailableWebhook(recoveryMsg: string, failureMsg: string) { |
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return availableReporter( |
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[recoveryMsg, WebhookType.RECOVERY], |
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[failureMsg, WebhookType.FAILURE], |
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this.sendMsg, |
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this.sendMsg |
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); |
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public sendDatasourceAvailableWebhook(url: string) { |
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const reporter = this._getDatasourceAvailableReporter(url); |
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reporter(true); |
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} |
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public sendDatasourceUnavailableWebhook(url: string) { |
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const reporter = this._getDatasourceAvailableReporter(url); |
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reporter(false); |
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} |
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public addAnalyticUnit(analyticUnit: AnalyticUnit.AnalyticUnit) { |
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const detector = analyticUnit.detectorType; |
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let alertsType = {}; |
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alertsType[AnalyticUnit.DetectorType.THRESHOLD] = ThresholdAlert; |
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alertsType[AnalyticUnit.DetectorType.PATTERN] = PatternAlert; |
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alertsType[AnalyticUnit.DetectorType.ANOMALY] = Alert; |
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this._alerts[analyticUnit.id] = new alertsType[detector](analyticUnit); |
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this._alerts[analyticUnit.id] = new alertsType[analyticUnit.detectorType](analyticUnit); |
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} |
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public removeAnalyticUnit(analyticUnitId: AnalyticUnit.AnalyticUnitId) { |
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@ -145,10 +202,21 @@ export class AlertService {
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public stopAlerting() { |
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this._alertingEnable = false; |
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this._alerts = {}; |
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} |
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public startAlerting() { |
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this._alertingEnable = true; |
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} |
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private _getDatasourceAvailableReporter(url: string) { |
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if(!_.has(this._datasourceAvailableReporters, url)) { |
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this._datasourceAvailableReporters[url] = availableReporter( |
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[`[OK] Datasource ${url} available`, WebhookType.RECOVERY], |
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[`[FAILURE] Datasource ${url} unavailable`, WebhookType.FAILURE], |
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this.sendMsg, |
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this.sendMsg |
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); |
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} |
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return this._datasourceAvailableReporters[url]; |
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} |
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} |
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Evgeny Smyshlyaev
6 years ago
committed by