93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package stats
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import (
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"strings"
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"github.com/elastic/beats/libbeat/common"
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"github.com/elastic/beats/libbeat/common/cfgwarn"
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"github.com/elastic/beats/metricbeat/helper"
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"github.com/elastic/beats/metricbeat/mb"
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"github.com/elastic/beats/metricbeat/mb/parse"
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)
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const (
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defaultScheme = "http"
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defaultPath = "/metrics"
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)
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var (
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hostParser = parse.URLHostParserBuilder{
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DefaultScheme: defaultScheme,
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DefaultPath: defaultPath,
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}.Build()
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)
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func init() {
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mb.Registry.MustAddMetricSet("prometheus", "stats", New,
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mb.WithHostParser(hostParser),
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)
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}
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type MetricSet struct {
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mb.BaseMetricSet
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http *helper.HTTP
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}
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func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
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cfgwarn.Beta("The prometheus stats metricset is beta")
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http, err := helper.NewHTTP(base)
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if err != nil {
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return nil, err
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}
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return &MetricSet{
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BaseMetricSet: base,
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http: http,
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}, nil
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}
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func (m *MetricSet) Fetch() (common.MapStr, error) {
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scanner, err := m.http.FetchScanner()
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if err != nil {
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return nil, err
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}
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entries := map[string]interface{}{}
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// Iterate through all events to gather data
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for scanner.Scan() {
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line := scanner.Text()
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// Skip comments and calculated lines
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if line[0] == '#' || strings.Contains(line, "quantile=") {
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continue
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}
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splitPos := strings.LastIndex(line, " ")
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split := []string{line[:splitPos], line[splitPos+1:]}
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entries[split[0]] = split[1]
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}
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data, err := eventMapping(entries)
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return data, err
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}
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