telegraf/plugins/system/docker.go

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// +build linux
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package system
import (
"fmt"
"github.com/influxdb/telegraf/plugins"
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)
type DockerStats struct {
ps PS
}
func (_ *DockerStats) Description() string {
return "Read metrics about docker containers"
}
func (_ *DockerStats) SampleConfig() string { return "" }
func (s *DockerStats) Gather(acc plugins.Accumulator) error {
containers, err := s.ps.DockerStat()
if err != nil {
return fmt.Errorf("error getting docker info: %s", err)
}
for _, cont := range containers {
tags := map[string]string{
"id": cont.Id,
"name": cont.Name,
"command": cont.Command,
}
for k, v := range cont.Labels {
tags[k] = v
}
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cts := cont.CPU
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fields := map[string]interface{}{
"user": cts.User,
"system": cts.System,
"idle": cts.Idle,
"nice": cts.Nice,
"iowait": cts.Iowait,
"irq": cts.Irq,
"softirq": cts.Softirq,
"steal": cts.Steal,
"guest": cts.Guest,
"guest_nice": cts.GuestNice,
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"cache": cont.Mem.Cache,
"rss": cont.Mem.RSS,
"rss_huge": cont.Mem.RSSHuge,
"mapped_file": cont.Mem.MappedFile,
"swap_in": cont.Mem.Pgpgin,
"swap_out": cont.Mem.Pgpgout,
"page_fault": cont.Mem.Pgfault,
"page_major_fault": cont.Mem.Pgmajfault,
"inactive_anon": cont.Mem.InactiveAnon,
"active_anon": cont.Mem.ActiveAnon,
"inactive_file": cont.Mem.InactiveFile,
"active_file": cont.Mem.ActiveFile,
"unevictable": cont.Mem.Unevictable,
"memory_limit": cont.Mem.HierarchicalMemoryLimit,
"total_cache": cont.Mem.TotalCache,
"total_rss": cont.Mem.TotalRSS,
"total_rss_huge": cont.Mem.TotalRSSHuge,
"total_mapped_file": cont.Mem.TotalMappedFile,
"total_swap_in": cont.Mem.TotalPgpgIn,
"total_swap_out": cont.Mem.TotalPgpgOut,
"total_page_fault": cont.Mem.TotalPgFault,
"total_page_major_fault": cont.Mem.TotalPgMajFault,
"total_inactive_anon": cont.Mem.TotalInactiveAnon,
"total_active_anon": cont.Mem.TotalActiveAnon,
"total_inactive_file": cont.Mem.TotalInactiveFile,
"total_active_file": cont.Mem.TotalActiveFile,
"total_unevictable": cont.Mem.TotalUnevictable,
}
acc.AddFields("docker", fields, tags)
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}
return nil
}
func init() {
plugins.Add("docker", func() plugins.Plugin {
return &DockerStats{ps: &systemPS{}}
})
}