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Add support for glob patterns in net input plugin (#3140)

This commit is contained in:
Bob Shannon 2017-11-29 15:16:34 -05:00 committed by Daniel Nelson
parent 24d82aebe6
commit beb9d7560d
2 changed files with 15 additions and 8 deletions
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6
plugins/inputs/system/NET_README.md
View File

@ -9,9 +9,11 @@ This plugin gathers metrics about network interface and protocol usage (Linux on
[[inputs.net]] [[inputs.net]]
## By default, telegraf gathers stats from any up interface (excluding loopback) ## By default, telegraf gathers stats from any up interface (excluding loopback)
## Setting interfaces will tell it to gather these explicit interfaces, ## Setting interfaces will tell it to gather these explicit interfaces,
## regardless of status. ## regardless of status. When specifying an interface, glob-style
## patterns are also supported.
##
# interfaces = ["eth*", "enp0s[0-1]", "lo"]
## ##
# interfaces = ["eth0"]
``` ```
### Measurements & Fields: ### Measurements & Fields:

17
plugins/inputs/system/net.go
View File

@ -6,11 +6,13 @@ import (
"strings" "strings"
"github.com/influxdata/telegraf" "github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/filter"
"github.com/influxdata/telegraf/plugins/inputs" "github.com/influxdata/telegraf/plugins/inputs"
) )
type NetIOStats struct { type NetIOStats struct {
ps PS filter filter.Filter
ps PS
skipChecks bool skipChecks bool
Interfaces []string Interfaces []string
@ -38,15 +40,18 @@ func (s *NetIOStats) Gather(acc telegraf.Accumulator) error {
return fmt.Errorf("error getting net io info: %s", err) return fmt.Errorf("error getting net io info: %s", err)
} }
if s.filter == nil {
if s.filter, err = filter.Compile(s.Interfaces); err != nil {
return fmt.Errorf("error compiling filter: %s", err)
}
}
for _, io := range netio { for _, io := range netio {
if len(s.Interfaces) != 0 { if len(s.Interfaces) != 0 {
var found bool var found bool
for _, name := range s.Interfaces { if s.filter.Match(io.Name) {
if name == io.Name { found = true
found = true
break
}
} }
if !found { if !found {