72 lines
2 KiB
Go
72 lines
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 cpu
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import (
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"github.com/docker/docker/client"
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"github.com/elastic/beats/libbeat/common"
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"github.com/elastic/beats/metricbeat/mb"
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"github.com/elastic/beats/metricbeat/module/docker"
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)
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func init() {
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mb.Registry.MustAddMetricSet("docker", "cpu", New,
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mb.WithHostParser(docker.HostParser),
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mb.DefaultMetricSet(),
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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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cpuService *CPUService
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dockerClient *client.Client
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dedot bool
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}
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// New creates a new instance of the docker cpu MetricSet.
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func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
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config := docker.DefaultConfig()
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if err := base.Module().UnpackConfig(&config); err != nil {
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return nil, err
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}
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client, err := docker.NewDockerClient(base.HostData().URI, config)
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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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dockerClient: client,
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cpuService: &CPUService{},
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dedot: config.DeDot,
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}, nil
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}
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// Fetch returns a list of docker CPU stats.
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func (m *MetricSet) Fetch() ([]common.MapStr, error) {
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stats, err := docker.FetchStats(m.dockerClient, m.Module().Config().Timeout)
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if err != nil {
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return nil, err
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}
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formattedStats := m.cpuService.getCPUStatsList(stats, m.dedot)
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return eventsMapping(formattedStats), nil
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}
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