103 lines
2.6 KiB
Go
103 lines
2.6 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 raid
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import (
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"path/filepath"
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"github.com/pkg/errors"
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"github.com/prometheus/procfs"
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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/mb/parse"
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"github.com/elastic/beats/metricbeat/module/system"
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)
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func init() {
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mb.Registry.MustAddMetricSet("system", "raid", New,
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mb.WithHostParser(parse.EmptyHostParser),
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)
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}
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// MetricSet contains proc fs data.
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type MetricSet struct {
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mb.BaseMetricSet
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fs procfs.FS
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}
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// New creates a new instance of the raid metricset.
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func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
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systemModule, ok := base.Module().(*system.Module)
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if !ok {
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return nil, errors.New("unexpected module type")
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}
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// Additional configuration options
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config := struct {
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MountPoint string `config:"raid.mount_point"`
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}{}
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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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if config.MountPoint == "" {
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config.MountPoint = systemModule.HostFS
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}
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mountPoint := filepath.Join(config.MountPoint, procfs.DefaultMountPoint)
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fs, err := procfs.NewFS(mountPoint)
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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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fs: fs,
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}, nil
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}
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// Fetch fetches one event for each device
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func (m *MetricSet) Fetch() ([]common.MapStr, error) {
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stats, err := m.fs.ParseMDStat()
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if err != nil {
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return nil, err
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}
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events := make([]common.MapStr, 0, len(stats))
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for _, stat := range stats {
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event := common.MapStr{
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"name": stat.Name,
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"activity_state": stat.ActivityState,
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"disks": common.MapStr{
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"active": stat.DisksActive,
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"total": stat.DisksTotal,
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},
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"blocks": common.MapStr{
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"synced": stat.BlocksSynced,
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"total": stat.BlocksTotal,
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},
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}
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events = append(events, event)
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}
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return events, nil
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}
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