593 lines
17 KiB
JavaScript
593 lines
17 KiB
JavaScript
define([
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'angular',
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'lodash',
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'kbn',
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'./queryCtrl',
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],
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function (angular, _, kbn) {
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'use strict';
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var module = angular.module('grafana.services');
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module.factory('ZabbixAPIDatasource', function($q, backendSrv, templateSrv) {
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function ZabbixAPIDatasource(datasource) {
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this.name = datasource.name;
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this.url = datasource.url;
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// TODO: fix passing username and password from config.html
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this.username = datasource.meta.username;
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this.password = datasource.meta.password;
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// Limit metrics per panel
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this.limitmetrics = datasource.meta.limitmetrics || 20;
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// For testing
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this.ds = datasource;
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}
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ZabbixAPIDatasource.prototype.query = function(options) {
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// get from & to in seconds
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var from = Math.ceil(kbn.parseDate(options.range.from).getTime() / 1000);
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var to = Math.ceil(kbn.parseDate(options.range.to).getTime() / 1000);
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// Create request for each target
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var promises = _.map(options.targets, function(target) {
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// Remove undefined and hidden targets
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if (target.hide || !target.item) {
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return [];
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}
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if (!target.item.templated) {
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// Perform request and then handle result
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var item = [target.item];
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var alias = [{
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itemid: target.item.itemid,
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key_: '',
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name: target.alias
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}];
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return this.performTimeSeriesQuery(item, from, to).then(_.partial(
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this.handleZabbixAPIResponse, alias));
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} else {
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// Handle templated target
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var itemname = templateSrv.replace(target.item.name);
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var hostname = templateSrv.replace(target.host.name);
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// Extract zabbix hosts
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var host_pattern = /([\w\.\s]+)/g;
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var hosts = hostname.match(host_pattern);
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// Extract item names
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var delete_hostname_pattern = /(?:\[[\w\.]+\]\:\s)/g;
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var itemname_pattern = /([^{},]+)/g;
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// Remove hostnames from item name
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// [hostname]: itemname --> itemname
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var itemnames = itemname.replace(delete_hostname_pattern, '').match(itemname_pattern);
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//var aliases = itemname.match(itemname_pattern);
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if (itemnames && (itemnames.length < this.limitmetrics)) {
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// Find items by item names and perform queries
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var self = this;
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return $q.all(_.map(hosts, function (hostname) {
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if (hosts.length > 1) {
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var selectHosts = true;
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}
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return this.findZabbixItem(hostname, itemnames, selectHosts);
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}, this)).then(function (items) {
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items = _.flatten(items);
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return self.performTimeSeriesQuery(items, from, to)
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.then(_.partial(self.handleZabbixAPIResponse, items));
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});
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} else {
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return [];
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}
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}
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}, this);
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return $q.all(_.flatten(promises)).then(function (results) {
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return { data: _.flatten(results) };
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});
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};
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/**
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* Perform time series query to Zabbix API
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*
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* @param items: array of zabbix api item objects
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*/
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ZabbixAPIDatasource.prototype.performTimeSeriesQuery = function(items, start, end) {
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// Group items by value type
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var grouped_items = _.groupBy(items, 'value_type');
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// Perform request for each value type
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return $q.all(_.map(grouped_items, function (items, value_type) {
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var itemids = _.map(items, 'itemid');
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var params = {
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output: 'extend',
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history: value_type,
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itemids: itemids,
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sortfield: 'clock',
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sortorder: 'ASC',
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time_from: start
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};
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// Relative queries (e.g. last hour) don't include an end time
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if (end) {
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params.time_till = end;
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}
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return this.performZabbixAPIRequest('history.get', params);
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}, this)).then(function (results) {
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return _.flatten(results);
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});
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};
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// Convert Zabbix API data to Grafana format
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ZabbixAPIDatasource.prototype.handleZabbixAPIResponse = function(items, response) {
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/**
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* Response should be in the format:
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* data: [
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* {
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* target: "Metric name",
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* datapoints: [[<value>, <unixtime>], ...]
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* },
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* {
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* target: "Metric name",
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* datapoints: [[<value>, <unixtime>], ...]
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* },
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* ]
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*/
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// Group items and history by itemid
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var indexed_items = _.indexBy(items, 'itemid');
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var grouped_history = _.groupBy(response, 'itemid');
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return $q.when(_.map(grouped_history, function (history, itemid) {
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var item = indexed_items[itemid];
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var series = {
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target: (item.hosts ? '['+item.hosts[0].name+']: ' : '') + expandItemName(item),
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datapoints: _.map(history, function (p) {
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// Value must be a number for properly work
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var value = Number(p.value);
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return [value, p.clock * 1000];
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})
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};
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return series;
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}));
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};
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// Request data from Zabbix API
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ZabbixAPIDatasource.prototype.performZabbixAPIRequest = function(method, params) {
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var options = {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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url: this.url,
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data: {
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jsonrpc: '2.0',
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method: method,
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params: params,
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auth: this.auth,
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id: 1
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}
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};
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var performedQuery;
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// Check authorization first
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if (!this.auth) {
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var self = this;
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performedQuery = this.performZabbixAPILogin().then(function (response) {
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self.auth = response;
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options.data.auth = response;
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return backendSrv.datasourceRequest(options);
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});
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} else {
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performedQuery = backendSrv.datasourceRequest(options);
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}
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// Handle response
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return performedQuery.then(function (response) {
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if (!response.data) {
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return [];
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}
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return response.data.result;
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});
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};
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// Get authentication token
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ZabbixAPIDatasource.prototype.performZabbixAPILogin = function() {
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var options = {
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url : this.url,
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method : 'POST',
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data: {
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jsonrpc: '2.0',
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method: 'user.login',
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params: {
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user: this.username,
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password: this.password
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},
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auth: null,
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id: 1
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},
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};
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return backendSrv.datasourceRequest(options).then(function (result) {
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if (!result.data) {
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return null;
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}
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return result.data.result;
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});
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};
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// Get the list of host groups
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ZabbixAPIDatasource.prototype.performHostGroupSuggestQuery = function() {
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var params = {
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output: ['name'],
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real_hosts: true, //Return only host groups that contain hosts
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sortfield: 'name'
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};
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return this.performZabbixAPIRequest('hostgroup.get', params);
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};
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// Get the list of hosts
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ZabbixAPIDatasource.prototype.performHostSuggestQuery = function(groupids) {
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var params = {
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output: ['name', 'host'],
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sortfield: 'name',
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// Return only hosts that have items with numeric type of information.
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with_simple_graph_items: true
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};
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// Return only hosts in given group
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if (groupids) {
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params.groupids = groupids;
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}
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return this.performZabbixAPIRequest('host.get', params);
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};
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// Get the list of applications
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ZabbixAPIDatasource.prototype.performAppSuggestQuery = function(hostids, /* optional */ groupids) {
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var params = {
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output: ['name'],
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sortfield: 'name'
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};
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if (hostids) {
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params.hostids = hostids;
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}
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else if (groupids) {
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params.groupids = groupids;
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}
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return this.performZabbixAPIRequest('application.get', params);
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};
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// Get the list of host items
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ZabbixAPIDatasource.prototype.performItemSuggestQuery = function(hostids, applicationids, /* optional */ groupids) {
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var params = {
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output: ['name', 'key_', 'value_type', 'delay'],
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sortfield: 'name',
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//Include web items in the result
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webitems: true,
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// Return only numeric items
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filter: {
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value_type: [0,3]
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},
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searchByAny: true
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};
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if (hostids) {
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params.hostids = hostids;
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}
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else if (groupids) {
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params.groupids = groupids;
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}
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// If application selected return only relative items
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if (applicationids) {
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params.applicationids = applicationids;
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}
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// Return host property for multiple hosts
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if (!hostids || (_.isArray(hostids) && hostids.length > 1)) {
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params.selectHosts = ['name'];
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}
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return this.performZabbixAPIRequest('item.get', params);
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};
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ZabbixAPIDatasource.prototype.findZabbixGroup = function (group) {
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var params = {
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output: ['name'],
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search: {
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name: group
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},
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searchByAny: true,
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searchWildcardsEnabled: true
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}
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return this.performZabbixAPIRequest('hostgroup.get', params);
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};
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ZabbixAPIDatasource.prototype.findZabbixHost = function (hostname) {
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var params = {
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output: ['host', 'name'],
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search: {
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host: hostname,
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name: hostname
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},
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searchByAny: true,
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searchWildcardsEnabled: true
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}
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return this.performZabbixAPIRequest('host.get', params);
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};
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ZabbixAPIDatasource.prototype.findZabbixApp = function (application) {
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var params = {
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output: ['name'],
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search: {
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name: application
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},
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searchByAny: true,
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searchWildcardsEnabled: true,
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}
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return this.performZabbixAPIRequest('application.get', params);
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};
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ZabbixAPIDatasource.prototype.findZabbixItem = function (host, itemnames, /* optional */ selectHosts) {
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var params = {
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output: ['name', 'key_', 'value_type'],
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host: host
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};
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if (selectHosts) {
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params.selectHosts = ['name'];
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}
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return this.performZabbixAPIRequest('item.get', params).then(function (items) {
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return _.filter(items, function (item) {
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return _.contains(itemnames, expandItemName(item));
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});
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});
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};
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// For templated query
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ZabbixAPIDatasource.prototype.metricFindQuery = function (query) {
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// Split query. Query structure:
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// group.host.app.key
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var parts = [];
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_.each(query.split('.'), function (part) {
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part = templateSrv.replace(part);
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if (part[0] === '{') {
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// Convert multiple mettrics to array
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// "{metric1,metcic2,...,metricN}" --> [metric1, metcic2,..., metricN]
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parts.push(part.slice(1, -1).split(','));
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} else {
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parts.push(part);
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}
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});
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var template = _.object(['group', 'host', 'app', 'key'], parts)
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var params = {
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output: ['name'],
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sortfield: 'name',
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// Case insensitive search
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search: {
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name : template.group
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}
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};
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// Get items
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if (parts.length === 4) {
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return this.itemFindQuery(template);
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}
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// Get applications
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else if (parts.length === 3) {
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return this.appFindQuery(template);
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}
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// Get hosts
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else if (parts.length === 2) {
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return this.hostFindQuery(template);
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}
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// Get groups
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else if (parts.length === 1) {
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return this.groupFindQuery(template);
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}
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// Return empty object
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else {
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var d = $q.defer();
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d.resolve([]);
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return d.promise;
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}
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};
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ZabbixAPIDatasource.prototype.itemFindQuery = function(template) {
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var promises = [];
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// Get hostids from names
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if (template.host && template.host != '*') {
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promises.push(this.findZabbixHost(template.host));
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}
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// Get groupids from names
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else if (template.group && template.group != '*') {
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promises.push(this.findZabbixGroup(template.group));
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}
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// Get applicationids from names
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if (template.app && template.app != '*') {
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promises.push(this.findZabbixApp(template.app));
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}
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var self = this;
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return $q.all(promises).then(function (results) {
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results = _.flatten(results);
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var groupids = _.map(_.filter(results, function (object) {
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return object.groupid;
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}), 'groupid');
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var hostids = _.map(_.filter(results, function (object) {
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return object.hostid;
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}), 'hostid');
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var applicationids = _.map(_.filter(results, function (object) {
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return object.applicationid;
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}), 'applicationid');
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return self.performItemSuggestQuery(hostids, applicationids, groupids)
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.then(function (result) {
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return _.map(result, function (item) {
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var itemname = expandItemName(item)
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return {
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text: (item.hosts ? '['+item.hosts[0].name+']: ' : '') + itemname,
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expandable: false
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};
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});
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});
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});
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};
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ZabbixAPIDatasource.prototype.appFindQuery = function(template) {
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var promises = [];
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// Get hostids from names
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if (template.host && template.host != '*') {
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promises.push(this.findZabbixHost(template.host));
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}
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// Get groupids from names
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else if (template.group && template.group != '*') {
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promises.push(this.findZabbixGroup(template.group));
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}
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var self = this;
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return $q.all(promises).then(function (results) {
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results = _.flatten(results);
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var groupids = _.map(_.filter(results, function (object) {
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return object.groupid;
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}), 'groupid');
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var hostids = _.map(_.filter(results, function (object) {
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return object.hostid;
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}), 'hostid');
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return self.performAppSuggestQuery(hostids, groupids)
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.then(function (result) {
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return _.map(result, function (app) {
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return {
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text: app.name,
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expandable: false
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};
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});
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});
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});
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};
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ZabbixAPIDatasource.prototype.hostFindQuery = function(template) {
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var self = this;
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return this.findZabbixGroup(template.group).then(function (results) {
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results = _.flatten(results);
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var groupids = _.map(_.filter(results, function (object) {
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return object.groupid;
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}), 'groupid');
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return self.performHostSuggestQuery(groupids).then(function (result) {
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return _.map(result, function (host) {
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return {
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text: host.name,
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expandable: false
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};
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});
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});
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});
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};
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ZabbixAPIDatasource.prototype.groupFindQuery = function(template) {
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return this.performHostGroupSuggestQuery().then(function (result) {
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return _.map(result, function (hostgroup) {
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return {
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text: hostgroup.name,
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expandable: false
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};
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});
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});
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};
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ZabbixAPIDatasource.prototype.annotationQuery = function(annotation, rangeUnparsed) {
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var from = Math.ceil(kbn.parseDate(rangeUnparsed.from).getTime() / 1000);
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var to = Math.ceil(kbn.parseDate(rangeUnparsed.to).getTime() / 1000);
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var self = this;
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var params = {
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output: ['triggerid', 'description'],
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search: {
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'description': annotation.query
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},
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};
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return this.performZabbixAPIRequest('trigger.get', params).then(function (result) {
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if(result) {
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var obs = {};
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obs = _.indexBy(result, 'triggerid');
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var params = {
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output: 'extend',
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sortorder: 'DESC',
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time_from: from,
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time_till: to,
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objectids: _.keys(obs)
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};
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return self.performZabbixAPIRequest('event.get', params).then(function (result) {
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var events = [];
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_.each(result, function(e) {
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events.push({
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annotation: annotation,
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time: e.clock * 1000,
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title: obs[e.objectid].description,
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text: e.eventid,
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});
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});
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return events;
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});
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} else {
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return [];
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}
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});
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};
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return ZabbixAPIDatasource;
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});
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});
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/**
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* Expand item parameters, for example:
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* CPU $2 time ($3) --> CPU system time (avg1)
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*
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* @param item: zabbix api item object
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* @return: expanded item name (string)
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*/
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function expandItemName(item) {
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var name = item.name;
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var key = item.key_;
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// extract params from key:
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// "system.cpu.util[,system,avg1]" --> ["", "system", "avg1"]
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var key_params = key.substring(key.indexOf('[') + 1, key.lastIndexOf(']')).split(',');
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// replace item parameters
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for (var i = key_params.length; i >= 1; i--) {
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name = name.replace('$' + i, key_params[i - 1]);
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};
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return name;
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}; |