89 lines
2.5 KiB
Go
89 lines
2.5 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 status reads Apache HTTPD server status from the mod_status module.
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package status
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import (
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"github.com/elastic/beats/libbeat/common"
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"github.com/elastic/beats/libbeat/logp"
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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 is the default scheme to use when it is not specified in
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// the host config.
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defaultScheme = "http"
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// defaultPath is the default path to the mod_status endpoint on the
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// Apache HTTPD server.
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defaultPath = "/server-status"
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// autoQueryParam is a query parameter added to the request so that
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// mod_status returns machine-readable output.
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autoQueryParam = "auto"
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)
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var (
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debugf = logp.MakeDebug("apache-status")
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hostParser = parse.URLHostParserBuilder{
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DefaultScheme: defaultScheme,
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PathConfigKey: "server_status_path",
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DefaultPath: defaultPath,
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QueryParams: autoQueryParam,
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}.Build()
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)
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func init() {
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mb.Registry.MustAddMetricSet("apache", "status", New,
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mb.WithHostParser(hostParser),
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mb.DefaultMetricSet(),
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)
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}
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// MetricSet for fetching Apache HTTPD server status.
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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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// New creates new instance of MetricSet.
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func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
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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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base,
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http,
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}, nil
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}
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// Fetch makes an HTTP request to fetch status metrics from the mod_status endpoint.
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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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data, _ := eventMapping(scanner, m.Host())
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return data, nil
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}
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