84 lines
2.3 KiB
Go
84 lines
2.3 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 health
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import (
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"github.com/pkg/errors"
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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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// init registers the MetricSet with the central registry.
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// The New method will be called after the setup of the module and before starting to fetch data
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func init() {
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mb.Registry.MustAddMetricSet("traefik", "health", 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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var (
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hostParser = parse.URLHostParserBuilder{
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DefaultScheme: "http",
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DefaultPath: "health",
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}.Build()
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)
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// MetricSet type defines all fields of the MetricSet
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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 a new instance of the MetricSet.
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func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
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cfgwarn.Beta("The traefik health 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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base,
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http,
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}, nil
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}
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// Fetch methods gather data, convert it to the right format, and publish it.
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// If there are errors, those are published instead.
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func (m *MetricSet) Fetch(report mb.ReporterV2) {
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data, err := m.http.FetchJSON()
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if err != nil {
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report.Error(errors.Wrap(err, "failed to sample health"))
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return
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}
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metricSetFields, _ := eventMapping(data)
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event := mb.Event{
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MetricSetFields: metricSetFields,
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RootFields: common.MapStr{},
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}
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event.RootFields.Put("service.name", "traefik")
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report.Event(event)
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}
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