youtubebeat/vendor/github.com/elastic/beats/metricbeat/module/envoyproxy/server/server.go

81 lines
2 KiB
Go

// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package server
import (
"github.com/elastic/beats/libbeat/common"
"github.com/elastic/beats/libbeat/common/cfgwarn"
"github.com/elastic/beats/metricbeat/helper"
"github.com/elastic/beats/metricbeat/mb"
"github.com/elastic/beats/metricbeat/mb/parse"
)
const (
defaultScheme = "http"
defaultPath = "/stats"
)
var (
hostParser = parse.URLHostParserBuilder{
DefaultScheme: defaultScheme,
DefaultPath: defaultPath,
}.Build()
)
func init() {
mb.Registry.MustAddMetricSet("envoyproxy", "server", New,
mb.WithHostParser(hostParser),
mb.DefaultMetricSet(),
)
}
type MetricSet struct {
mb.BaseMetricSet
http *helper.HTTP
}
func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
cfgwarn.Experimental("The envoyproxy server metricset is experimental.")
config := struct{}{}
if err := base.Module().UnpackConfig(&config); err != nil {
return nil, err
}
http, err := helper.NewHTTP(base)
if err != nil {
return nil, err
}
return &MetricSet{
base,
http,
}, nil
}
func (m *MetricSet) Fetch() (common.MapStr, error) {
content, err := m.http.FetchContent()
if err != nil {
return nil, err
}
event, err := eventMapping(content)
if err != nil {
return nil, err
}
return event, nil
}