forked from elastic/beats
-
Notifications
You must be signed in to change notification settings - Fork 1
/
cpu.go
51 lines (42 loc) · 1.16 KB
/
cpu.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
package cpu
import (
"github.com/elastic/beats/libbeat/common"
"github.com/elastic/beats/metricbeat/mb"
"github.com/elastic/beats/metricbeat/module/docker"
dc "github.com/fsouza/go-dockerclient"
)
func init() {
if err := mb.Registry.AddMetricSet("docker", "cpu", New, docker.HostParser); err != nil {
panic(err)
}
}
type MetricSet struct {
mb.BaseMetricSet
cpuService *CPUService
dockerClient *dc.Client
}
// New creates a new instance of the docker cpu MetricSet.
func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
config := docker.Config{}
if err := base.Module().UnpackConfig(&config); err != nil {
return nil, err
}
client, err := docker.NewDockerClient(base.HostData().URI, config)
if err != nil {
return nil, err
}
return &MetricSet{
BaseMetricSet: base,
dockerClient: client,
cpuService: &CPUService{},
}, nil
}
// Fetch returns a list of docker CPU stats.
func (m *MetricSet) Fetch() ([]common.MapStr, error) {
stats, err := docker.FetchStats(m.dockerClient, m.Module().Config().Timeout)
if err != nil {
return nil, err
}
formattedStats := m.cpuService.getCPUStatsList(stats)
return eventsMapping(formattedStats), nil
}