677 lines
22 KiB
JavaScript
677 lines
22 KiB
JavaScript
import _ from 'lodash';
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import * as dateMath from 'app/core/utils/datemath';
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import * as utils from './utils';
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import * as migrations from './migrations';
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import * as metricFunctions from './metricFunctions';
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import * as c from './constants';
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import dataProcessor from './dataProcessor';
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import responseHandler from './responseHandler';
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import './zabbix.js';
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import './zabbixAlerting.service.js';
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import {ZabbixAPIError} from './zabbixAPICore.service.js';
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class ZabbixAPIDatasource {
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/** @ngInject */
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constructor(instanceSettings, templateSrv, alertSrv, dashboardSrv, zabbixAlertingSrv, Zabbix) {
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this.templateSrv = templateSrv;
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this.alertSrv = alertSrv;
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this.dashboardSrv = dashboardSrv;
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this.zabbixAlertingSrv = zabbixAlertingSrv;
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// Use custom format for template variables
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this.replaceTemplateVars = _.partial(replaceTemplateVars, this.templateSrv);
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// General data source settings
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this.name = instanceSettings.name;
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this.url = instanceSettings.url;
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this.basicAuth = instanceSettings.basicAuth;
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this.withCredentials = instanceSettings.withCredentials;
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// Zabbix API credentials
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this.username = instanceSettings.jsonData.username;
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this.password = instanceSettings.jsonData.password;
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// Use trends instead history since specified time
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this.trends = instanceSettings.jsonData.trends;
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this.trendsFrom = instanceSettings.jsonData.trendsFrom || '7d';
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this.trendsRange = instanceSettings.jsonData.trendsRange || '4d';
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// Set cache update interval
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var ttl = instanceSettings.jsonData.cacheTTL || '1h';
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this.cacheTTL = utils.parseInterval(ttl);
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// Alerting options
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this.alertingEnabled = instanceSettings.jsonData.alerting;
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this.addThresholds = instanceSettings.jsonData.addThresholds;
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this.alertingMinSeverity = instanceSettings.jsonData.alertingMinSeverity || c.SEV_WARNING;
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// Direct DB Connection options
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this.enableDirectDBConnection = instanceSettings.jsonData.dbConnection.enable;
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this.sqlDatasourceId = instanceSettings.jsonData.dbConnection.datasourceId;
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let zabbixOptions = {
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username: this.username,
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password: this.password,
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basicAuth: this.basicAuth,
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withCredentials: this.withCredentials,
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cacheTTL: this.cacheTTL,
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enableDirectDBConnection: this.enableDirectDBConnection,
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sqlDatasourceId: this.sqlDatasourceId
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};
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this.zabbix = new Zabbix(this.url, zabbixOptions);
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}
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////////////////////////
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// Datasource methods //
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////////////////////////
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/**
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* Query panel data. Calls for each panel in dashboard.
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* @param {Object} options Contains time range, targets and other info.
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* @return {Object} Grafana metrics object with timeseries data for each target.
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*/
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query(options) {
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// Get alerts for current panel
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if (this.alertingEnabled) {
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this.alertQuery(options).then(alert => {
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this.zabbixAlertingSrv.setPanelAlertState(options.panelId, alert.state);
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this.zabbixAlertingSrv.removeZabbixThreshold(options.panelId);
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if (this.addThresholds) {
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_.forEach(alert.thresholds, threshold => {
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this.zabbixAlertingSrv.setPanelThreshold(options.panelId, threshold);
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});
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}
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});
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}
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// Create request for each target
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let promises = _.map(options.targets, t => {
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let timeFrom = Math.ceil(dateMath.parse(options.range.from) / 1000);
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let timeTo = Math.ceil(dateMath.parse(options.range.to) / 1000);
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// Prevent changes of original object
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let target = _.cloneDeep(t);
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this.replaceTargetVariables(target, options);
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// Apply Time-related functions (timeShift(), etc)
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let timeFunctions = bindFunctionDefs(target.functions, 'Time');
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if (timeFunctions.length) {
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const [time_from, time_to] = sequence(timeFunctions)([timeFrom, timeTo]);
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timeFrom = time_from;
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timeTo = time_to;
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}
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let timeRange = [timeFrom, timeTo];
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let useTrends = this.isUseTrends(timeRange);
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// Metrics or Text query mode
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if (target.mode !== c.MODE_ITSERVICE) {
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// Migrate old targets
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target = migrations.migrate(target);
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// Don't request undefined and hidden targets
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if (target.hide || !target.group || !target.host || !target.item) {
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return [];
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}
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if (!target.mode || target.mode === c.MODE_METRICS) {
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return this.queryNumericData(target, timeRange, useTrends, options);
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} else if (target.mode === c.MODE_TEXT) {
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return this.queryTextData(target, timeRange);
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}
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}
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// IT services mode
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else if (target.mode === c.MODE_ITSERVICE) {
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return this.queryITServiceData(target, timeRange, options);
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}
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});
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// Data for panel (all targets)
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return Promise.all(_.flatten(promises))
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.then(_.flatten)
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.then(data => {
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return { data: data };
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});
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}
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queryNumericData(target, timeRange, useTrends, options) {
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let [timeFrom, timeTo] = timeRange;
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let getItemOptions = {
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itemtype: 'num'
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};
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return this.zabbix.getItemsFromTarget(target, getItemOptions)
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.then(items => {
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let getHistoryPromise;
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options.consolidateBy = getConsolidateBy(target);
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if (useTrends) {
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if (this.enableDirectDBConnection) {
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getHistoryPromise = this.zabbix.getTrendsDB(items, timeFrom, timeTo, options)
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.then(history => this.zabbix.dbConnector.handleGrafanaTSResponse(history, items));
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} else {
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let valueType = this.getTrendValueType(target);
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getHistoryPromise = this.zabbix.getTrend(items, timeFrom, timeTo)
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.then(history => responseHandler.handleTrends(history, items, valueType))
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.then(timeseries => {
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// Sort trend data, issue #202
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_.forEach(timeseries, series => {
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series.datapoints = _.sortBy(series.datapoints, point => point[c.DATAPOINT_TS]);
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});
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return timeseries;
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});
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}
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} else {
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// Use history
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if (this.enableDirectDBConnection) {
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getHistoryPromise = this.zabbix.getHistoryDB(items, timeFrom, timeTo, options)
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.then(history => this.zabbix.dbConnector.handleGrafanaTSResponse(history, items));
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} else {
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getHistoryPromise = this.zabbix.getHistory(items, timeFrom, timeTo)
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.then(history => responseHandler.handleHistory(history, items));
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}
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}
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return getHistoryPromise;
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})
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.then(timeseries => this.applyDataProcessingFunctions(timeseries, target))
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.then(timeseries => downsampleSeries(timeseries, options))
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.catch(error => {
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console.log(error);
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return [];
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});
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}
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getTrendValueType(target) {
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// Find trendValue() function and get specified trend value
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var trendFunctions = _.map(metricFunctions.getCategories()['Trends'], 'name');
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var trendValueFunc = _.find(target.functions, func => {
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return _.includes(trendFunctions, func.def.name);
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});
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return trendValueFunc ? trendValueFunc.params[0] : "avg";
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}
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applyDataProcessingFunctions(timeseries_data, target) {
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let transformFunctions = bindFunctionDefs(target.functions, 'Transform');
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let aggregationFunctions = bindFunctionDefs(target.functions, 'Aggregate');
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let filterFunctions = bindFunctionDefs(target.functions, 'Filter');
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let aliasFunctions = bindFunctionDefs(target.functions, 'Alias');
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// Apply transformation functions
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timeseries_data = _.map(timeseries_data, timeseries => {
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timeseries.datapoints = sequence(transformFunctions)(timeseries.datapoints);
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return timeseries;
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});
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// Apply filter functions
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if (filterFunctions.length) {
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timeseries_data = sequence(filterFunctions)(timeseries_data);
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}
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// Apply aggregations
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if (aggregationFunctions.length) {
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let dp = _.map(timeseries_data, 'datapoints');
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dp = sequence(aggregationFunctions)(dp);
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let aggFuncNames = _.map(metricFunctions.getCategories()['Aggregate'], 'name');
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let lastAgg = _.findLast(target.functions, func => {
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return _.includes(aggFuncNames, func.def.name);
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});
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timeseries_data = [{
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target: lastAgg.text,
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datapoints: dp
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}];
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}
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// Apply alias functions
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_.forEach(timeseries_data, sequence(aliasFunctions));
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// Apply Time-related functions (timeShift(), etc)
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// Find timeShift() function and get specified trend value
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this.applyTimeShiftFunction(timeseries_data, target);
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return timeseries_data;
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}
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applyTimeShiftFunction(timeseries_data, target) {
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// Find timeShift() function and get specified interval
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let timeShiftFunc = _.find(target.functions, (func) => {
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return func.def.name === 'timeShift';
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});
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if (timeShiftFunc) {
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let shift = timeShiftFunc.params[0];
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_.forEach(timeseries_data, (series) => {
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series.datapoints = dataProcessor.unShiftTimeSeries(shift, series.datapoints);
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});
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}
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}
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queryTextData(target, timeRange) {
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let [timeFrom, timeTo] = timeRange;
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let options = {
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itemtype: 'text'
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};
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return this.zabbix.getItemsFromTarget(target, options)
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.then(items => {
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if (items.length) {
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return this.zabbix.getHistory(items, timeFrom, timeTo)
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.then(history => {
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return responseHandler.handleText(history, items, target);
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});
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} else {
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return Promise.resolve([]);
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}
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});
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}
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queryITServiceData(target, timeRange, options) {
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// Don't show undefined and hidden targets
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if (target.hide || (!target.itservice && !target.itServiceFilter) || !target.slaProperty) {
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return [];
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}
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let itServiceIds = [];
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let itServices = [];
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let itServiceFilter;
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let isOldVersion = target.itservice && !target.itServiceFilter;
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if (isOldVersion) {
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// Backward compatibility
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itServiceFilter = '/.*/';
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} else {
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itServiceFilter = this.replaceTemplateVars(target.itServiceFilter, options.scopedVars);
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}
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return this.zabbix.getITServices(itServiceFilter)
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.then(itservices => {
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itServices = itservices;
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if (isOldVersion) {
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itServices = _.filter(itServices, {'serviceid': target.itservice.serviceid});
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}
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itServiceIds = _.map(itServices, 'serviceid');
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return itServiceIds;
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})
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.then(serviceids => {
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return this.zabbix.getSLA(serviceids, timeRange);
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})
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.then(slaResponse => {
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return _.map(itServiceIds, serviceid => {
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let itservice = _.find(itServices, {'serviceid': serviceid});
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return responseHandler.handleSLAResponse(itservice, target.slaProperty, slaResponse);
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});
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});
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}
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/**
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* Test connection to Zabbix API
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* @return {object} Connection status and Zabbix API version
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*/
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testDatasource() {
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let zabbixVersion;
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return this.zabbix.getVersion()
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.then(version => {
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zabbixVersion = version;
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return this.zabbix.login();
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})
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.then(() => {
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if (this.enableDirectDBConnection) {
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return this.zabbix.dbConnector.testSQLDataSource();
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} else {
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return Promise.resolve();
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}
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})
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.then(() => {
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return {
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status: "success",
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title: "Success",
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message: "Zabbix API version: " + zabbixVersion
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};
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})
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.catch(error => {
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if (error instanceof ZabbixAPIError) {
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return {
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status: "error",
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title: error.message,
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message: error.data
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};
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} else if (error.data && error.data.message) {
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return {
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status: "error",
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title: "Connection failed",
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message: error.data.message
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};
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} else {
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return {
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status: "error",
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title: "Connection failed",
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message: "Could not connect to given url"
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};
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}
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});
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}
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////////////////
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// Templating //
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////////////////
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/**
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* Find metrics from templated request.
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*
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* @param {string} query Query from Templating
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* @return {string} Metric name - group, host, app or item or list
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* of metrics in "{metric1,metcic2,...,metricN}" format.
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*/
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metricFindQuery(query) {
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let result;
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let parts = [];
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// Split query. Query structure: group.host.app.item
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_.each(utils.splitTemplateQuery(query), part => {
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part = this.replaceTemplateVars(part, {});
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// Replace wildcard to regex
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if (part === '*') {
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part = '/.*/';
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}
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parts.push(part);
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});
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let template = _.zipObject(['group', 'host', 'app', 'item'], parts);
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// Get items
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if (parts.length === 4) {
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// Search for all items, even it's not belong to any application
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if (template.app === '/.*/') {
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template.app = '';
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}
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result = this.zabbix.getItems(template.group, template.host, template.app, template.item);
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} else if (parts.length === 3) {
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// Get applications
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result = this.zabbix.getApps(template.group, template.host, template.app);
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} else if (parts.length === 2) {
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// Get hosts
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result = this.zabbix.getHosts(template.group, template.host);
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} else if (parts.length === 1) {
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// Get groups
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result = this.zabbix.getGroups(template.group);
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} else {
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result = Promise.resolve([]);
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}
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return result.then(metrics => {
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return _.map(metrics, formatMetric);
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});
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}
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/////////////////
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// Annotations //
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/////////////////
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annotationQuery(options) {
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var timeFrom = Math.ceil(dateMath.parse(options.rangeRaw.from) / 1000);
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var timeTo = Math.ceil(dateMath.parse(options.rangeRaw.to) / 1000);
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var annotation = options.annotation;
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var showOkEvents = annotation.showOkEvents ? c.SHOW_ALL_EVENTS : c.SHOW_OK_EVENTS;
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// Show all triggers
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let triggersOptions = {
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showTriggers: c.SHOW_ALL_TRIGGERS,
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hideHostsInMaintenance: false
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};
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var getTriggers = this.zabbix.getTriggers(this.replaceTemplateVars(annotation.group, {}),
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this.replaceTemplateVars(annotation.host, {}),
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this.replaceTemplateVars(annotation.application, {}),
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triggersOptions);
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return getTriggers.then(triggers => {
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// Filter triggers by description
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let triggerName = this.replaceTemplateVars(annotation.trigger, {});
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if (utils.isRegex(triggerName)) {
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triggers = _.filter(triggers, trigger => {
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return utils.buildRegex(triggerName).test(trigger.description);
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});
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} else if (triggerName) {
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triggers = _.filter(triggers, trigger => {
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return trigger.description === triggerName;
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});
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}
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// Remove events below the chose severity
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triggers = _.filter(triggers, trigger => {
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return Number(trigger.priority) >= Number(annotation.minseverity);
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});
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var objectids = _.map(triggers, 'triggerid');
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return this.zabbix
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.getEvents(objectids, timeFrom, timeTo, showOkEvents)
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.then(events => {
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var indexedTriggers = _.keyBy(triggers, 'triggerid');
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// Hide acknowledged events if option enabled
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if (annotation.hideAcknowledged) {
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events = _.filter(events, event => {
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return !event.acknowledges.length;
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});
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}
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return _.map(events, event => {
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let tags;
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if (annotation.showHostname) {
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tags = _.map(event.hosts, 'name');
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}
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// Show event type (OK or Problem)
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let title = Number(event.value) ? 'Problem' : 'OK';
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let formatted_acknowledges = utils.formatAcknowledges(event.acknowledges);
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return {
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annotation: annotation,
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time: event.clock * 1000,
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title: title,
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tags: tags,
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text: indexedTriggers[event.objectid].description + formatted_acknowledges
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};
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});
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});
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});
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}
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/**
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* Get triggers and its details for panel's targets
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* Returns alert state ('ok' if no fired triggers, or 'alerting' if at least 1 trigger is fired)
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* or empty object if no related triggers are finded.
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*/
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alertQuery(options) {
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let enabled_targets = filterEnabledTargets(options.targets);
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let getPanelItems = _.map(enabled_targets, t => {
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let target = _.cloneDeep(t);
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this.replaceTargetVariables(target, options);
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return this.zabbix.getItemsFromTarget(target, {itemtype: 'num'});
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});
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return Promise.all(getPanelItems)
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.then(results => {
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let items = _.flatten(results);
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let itemids = _.map(items, 'itemid');
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return this.zabbix.getAlerts(itemids);
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})
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.then(triggers => {
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triggers = _.filter(triggers, trigger => {
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return trigger.priority >= this.alertingMinSeverity;
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});
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if (!triggers || triggers.length === 0) {
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return {};
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}
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let state = 'ok';
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let firedTriggers = _.filter(triggers, {value: '1'});
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if (firedTriggers.length) {
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state = 'alerting';
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}
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let thresholds = _.map(triggers, trigger => {
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return getTriggerThreshold(trigger.expression);
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});
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return {
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panelId: options.panelId,
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state: state,
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thresholds: thresholds
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};
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});
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}
|
|
|
|
// Replace template variables
|
|
replaceTargetVariables(target, options) {
|
|
let parts = ['group', 'host', 'application', 'item'];
|
|
_.forEach(parts, p => {
|
|
if (target[p] && target[p].filter) {
|
|
target[p].filter = this.replaceTemplateVars(target[p].filter, options.scopedVars);
|
|
}
|
|
});
|
|
target.textFilter = this.replaceTemplateVars(target.textFilter, options.scopedVars);
|
|
|
|
_.forEach(target.functions, func => {
|
|
func.params = _.map(func.params, param => {
|
|
if (typeof param === 'number') {
|
|
return +this.templateSrv.replace(param.toString(), options.scopedVars);
|
|
} else {
|
|
return this.templateSrv.replace(param, options.scopedVars);
|
|
}
|
|
});
|
|
});
|
|
}
|
|
|
|
isUseTrends(timeRange) {
|
|
let [timeFrom, timeTo] = timeRange;
|
|
let useTrendsFrom = Math.ceil(dateMath.parse('now-' + this.trendsFrom) / 1000);
|
|
let useTrendsRange = Math.ceil(utils.parseInterval(this.trendsRange) / 1000);
|
|
let useTrends = this.trends && (
|
|
(timeFrom <= useTrendsFrom) ||
|
|
(timeTo - timeFrom >= useTrendsRange)
|
|
);
|
|
return useTrends;
|
|
}
|
|
}
|
|
|
|
function bindFunctionDefs(functionDefs, category) {
|
|
var aggregationFunctions = _.map(metricFunctions.getCategories()[category], 'name');
|
|
var aggFuncDefs = _.filter(functionDefs, function(func) {
|
|
return _.includes(aggregationFunctions, func.def.name);
|
|
});
|
|
|
|
return _.map(aggFuncDefs, function(func) {
|
|
var funcInstance = metricFunctions.createFuncInstance(func.def, func.params);
|
|
return funcInstance.bindFunction(dataProcessor.metricFunctions);
|
|
});
|
|
}
|
|
|
|
function getConsolidateBy(target) {
|
|
let consolidateBy = 'avg';
|
|
let funcDef = _.find(target.functions, func => {
|
|
return func.def.name === 'consolidateBy';
|
|
});
|
|
if (funcDef && funcDef.params && funcDef.params.length) {
|
|
consolidateBy = funcDef.params[0];
|
|
}
|
|
return consolidateBy;
|
|
}
|
|
|
|
function downsampleSeries(timeseries_data, options) {
|
|
let defaultAgg = dataProcessor.aggregationFunctions['avg'];
|
|
let consolidateByFunc = dataProcessor.aggregationFunctions[options.consolidateBy] || defaultAgg;
|
|
return _.map(timeseries_data, timeseries => {
|
|
if (timeseries.datapoints.length > options.maxDataPoints) {
|
|
timeseries.datapoints = dataProcessor
|
|
.groupBy(options.interval, consolidateByFunc, timeseries.datapoints);
|
|
}
|
|
return timeseries;
|
|
});
|
|
}
|
|
|
|
function formatMetric(metricObj) {
|
|
return {
|
|
text: metricObj.name,
|
|
expandable: false
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Custom formatter for template variables.
|
|
* Default Grafana "regex" formatter returns
|
|
* value1|value2
|
|
* This formatter returns
|
|
* (value1|value2)
|
|
* This format needed for using in complex regex with
|
|
* template variables, for example
|
|
* /CPU $cpu_item.*time/ where $cpu_item is system,user,iowait
|
|
*/
|
|
function zabbixTemplateFormat(value) {
|
|
if (typeof value === 'string') {
|
|
return utils.escapeRegex(value);
|
|
}
|
|
|
|
var escapedValues = _.map(value, utils.escapeRegex);
|
|
return '(' + escapedValues.join('|') + ')';
|
|
}
|
|
|
|
/**
|
|
* If template variables are used in request, replace it using regex format
|
|
* and wrap with '/' for proper multi-value work. Example:
|
|
* $variable selected as a, b, c
|
|
* We use filter $variable
|
|
* $variable -> a|b|c -> /a|b|c/
|
|
* /$variable/ -> /a|b|c/ -> /a|b|c/
|
|
*/
|
|
function replaceTemplateVars(templateSrv, target, scopedVars) {
|
|
var replacedTarget = templateSrv.replace(target, scopedVars, zabbixTemplateFormat);
|
|
if (target !== replacedTarget && !utils.isRegex(replacedTarget)) {
|
|
replacedTarget = '/^' + replacedTarget + '$/';
|
|
}
|
|
return replacedTarget;
|
|
}
|
|
|
|
// Apply function one by one:
|
|
// sequence([a(), b(), c()]) = c(b(a()));
|
|
function sequence(funcsArray) {
|
|
return function(result) {
|
|
for (var i = 0; i < funcsArray.length; i++) {
|
|
result = funcsArray[i].call(this, result);
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
|
|
function filterEnabledTargets(targets) {
|
|
return _.filter(targets, target => {
|
|
return !(target.hide || !target.group || !target.host || !target.item);
|
|
});
|
|
}
|
|
|
|
function getTriggerThreshold(expression) {
|
|
let thresholdPattern = /.*[<>]([\d\.]+)/;
|
|
let finded_thresholds = expression.match(thresholdPattern);
|
|
if (finded_thresholds && finded_thresholds.length >= 2) {
|
|
let threshold = finded_thresholds[1];
|
|
threshold = Number(threshold);
|
|
return threshold;
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
export {ZabbixAPIDatasource, zabbixTemplateFormat};
|
|
|
|
// Fix for backward compatibility with lodash 2.4
|
|
if (!_.includes) {_.includes = _.contains;}
|
|
if (!_.keyBy) {_.keyBy = _.indexBy;}
|