Add unbound input plugin (#3434)
This commit is contained in:
aromeyer
Daniel Nelson
parent
51ec55fb16
commit
f89c774226
|
|
@ -200,6 +200,7 @@ configuration options.
|
|||
* [teamspeak](./plugins/inputs/teamspeak)
|
||||
* [tomcat](./plugins/inputs/tomcat)
|
||||
* [twemproxy](./plugins/inputs/twemproxy)
|
||||
* [unbound](./plugins/input/unbound)
|
||||
* [varnish](./plugins/inputs/varnish)
|
||||
* [zfs](./plugins/inputs/zfs)
|
||||
* [zookeeper](./plugins/inputs/zookeeper)
|
||||
|
|
|
|||
|
|
@ -2887,6 +2887,19 @@
|
|||
# # socket_listener plugin
|
||||
# # see https://github.com/influxdata/telegraf/tree/master/plugins/inputs/socket_listener
|
||||
|
||||
# # A plugin to collect stats from Unbound - a validating, recursive, and caching DNS resolver
|
||||
# [[inputs.unbound]]
|
||||
# ## If running as a restricted user you can prepend sudo for additional access:
|
||||
# #use_sudo = false
|
||||
#
|
||||
# ## The default location of the unbound-control binary can be overridden with:
|
||||
# binary = "/usr/sbin/unbound-control"
|
||||
#
|
||||
# # The default timeout of 1s can be overriden with:
|
||||
# #timeout = "1s"
|
||||
#
|
||||
# # Use the builtin fielddrop/fieldpass telegraf filters in order to keep/remove specific fields
|
||||
# fieldpass = ["total_*", "num_*","time_up", "mem_*"]
|
||||
|
||||
# # A Webhooks Event collector
|
||||
# [[inputs.webhooks]]
|
||||
|
|
|
|||
|
|
@ -92,6 +92,7 @@ import (
|
|||
_ "github.com/influxdata/telegraf/plugins/inputs/trig"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/twemproxy"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/udp_listener"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/unbound"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/varnish"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/webhooks"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/win_perf_counters"
|
||||
|
|
|
|||
|
|
@ -0,0 +1,135 @@
|
|||
# Unbound Input Plugin
|
||||
|
||||
This plugin gathers stats from [Unbound - a validating, recursive, and caching DNS resolver](https://www.unbound.net/)
|
||||
|
||||
### Configuration:
|
||||
|
||||
```toml
|
||||
# A plugin to collect stats from Unbound - a validating, recursive, and caching DNS resolver
|
||||
[[inputs.unbound]]
|
||||
## If running as a restricted user you can prepend sudo for additional access:
|
||||
#use_sudo = false
|
||||
|
||||
## The default location of the unbound-control binary can be overridden with:
|
||||
binary = "/usr/sbin/unbound-control"
|
||||
|
||||
## The default timeout of 1s can be overriden with:
|
||||
#timeout = "1s"
|
||||
|
||||
## Use the builtin fielddrop/fieldpass telegraf filters in order to keep only specific fields
|
||||
fieldpass = ["total_*", "num_*","time_up", "mem_*"]
|
||||
```
|
||||
|
||||
### Measurements & Fields:
|
||||
|
||||
This is the full list of stats provided by unbound-control and potentially collected by telegram
|
||||
depending of your unbound configuration. Histogram related statistics will never be collected,
|
||||
extended statistics can also be imported ("extended-statistics: yes" in unbound configuration).
|
||||
In the output, the dots in the unbound-control stat name are replaced by underscores(see
|
||||
https://www.unbound.net/documentation/unbound-control.html for details).
|
||||
|
||||
- unbound
|
||||
thread0_num_queries
|
||||
thread0_num_cachehits
|
||||
thread0_num_cachemiss
|
||||
thread0_num_prefetch
|
||||
thread0_num_recursivereplies
|
||||
thread0_requestlist_avg
|
||||
thread0_requestlist_max
|
||||
thread0_requestlist_overwritten
|
||||
thread0_requestlist_exceeded
|
||||
thread0_requestlist_current_all
|
||||
thread0_requestlist_current_user
|
||||
thread0_recursion_time_avg
|
||||
thread0_recursion_time_median
|
||||
total_num_queries
|
||||
total_num_cachehits
|
||||
total_num_cachemiss
|
||||
total_num_prefetch
|
||||
total_num_recursivereplies
|
||||
total_requestlist_avg
|
||||
total_requestlist_max
|
||||
total_requestlist_overwritten
|
||||
total_requestlist_exceeded
|
||||
total_requestlist_current_all
|
||||
total_requestlist_current_user
|
||||
total_recursion_time_avg
|
||||
total_recursion_time_median
|
||||
time_now
|
||||
time_up
|
||||
time_elapsed
|
||||
mem_total_sbrk
|
||||
mem_cache_rrset
|
||||
mem_cache_message
|
||||
mem_mod_iterator
|
||||
mem_mod_validator
|
||||
num_query_type_A
|
||||
num_query_type_PTR
|
||||
num_query_type_TXT
|
||||
num_query_type_AAAA
|
||||
num_query_type_SRV
|
||||
num_query_type_ANY
|
||||
num_query_class_IN
|
||||
num_query_opcode_QUERY
|
||||
num_query_tcp
|
||||
num_query_ipv6
|
||||
num_query_flags_QR
|
||||
num_query_flags_AA
|
||||
num_query_flags_TC
|
||||
num_query_flags_RD
|
||||
num_query_flags_RA
|
||||
num_query_flags_Z
|
||||
num_query_flags_AD
|
||||
num_query_flags_CD
|
||||
num_query_edns_present
|
||||
num_query_edns_DO
|
||||
num_answer_rcode_NOERROR
|
||||
num_answer_rcode_SERVFAIL
|
||||
num_answer_rcode_NXDOMAIN
|
||||
num_answer_rcode_nodata
|
||||
num_answer_secure
|
||||
num_answer_bogus
|
||||
num_rrset_bogus
|
||||
unwanted_queries
|
||||
unwanted_replies
|
||||
|
||||
### Permissions:
|
||||
|
||||
It's important to note that this plugin references unbound-control, which may require additional permissions to execute successfully.
|
||||
Depending on the user/group permissions of the telegraf user executing this plugin, you may need to alter the group membership, set facls, or use sudo.
|
||||
|
||||
**Group membership (Recommended)**:
|
||||
```bash
|
||||
$ groups telegraf
|
||||
telegraf : telegraf
|
||||
|
||||
$ usermod -a -G unbound telegraf
|
||||
|
||||
$ groups telegraf
|
||||
telegraf : telegraf unbound
|
||||
```
|
||||
|
||||
**Sudo privileges**:
|
||||
If you use this method, you will need the following in your telegraf config:
|
||||
```toml
|
||||
[[inputs.unbound]]
|
||||
use_sudo = true
|
||||
```
|
||||
|
||||
You will also need to update your sudoers file:
|
||||
```bash
|
||||
$ visudo
|
||||
# Add the following line:
|
||||
telegraf ALL=(ALL) NOPASSWD: /usr/sbin/unbound-control
|
||||
```
|
||||
|
||||
Please use the solution you see as most appropriate.
|
||||
|
||||
### Example Output:
|
||||
|
||||
```
|
||||
telegraf --config etc/telegraf.conf --input-filter unbound --test
|
||||
* Plugin: inputs.unbound, Collection 1
|
||||
> unbound,host=localhost total_num_cachehits=0,total_num_prefetch=0,total_requestlist_avg=0,total_requestlist_max=0,total_recursion_time_median=0,total_num_queries=0,total_requestlist_overwritten=0,total_requestlist_current_all=0,time_up=159185.583967,total_num_recursivereplies=0,total_requestlist_exceeded=0,total_requestlist_current_user=0,total_recursion_time_avg=0,total_tcpusage=0,total_num_cachemiss=0 1510130793000000000
|
||||
|
||||
```
|
||||
|
|
@ -0,0 +1,137 @@
|
|||
package unbound
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"bytes"
|
||||
"fmt"
|
||||
"os/exec"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/influxdata/telegraf"
|
||||
"github.com/influxdata/telegraf/filter"
|
||||
"github.com/influxdata/telegraf/internal"
|
||||
"github.com/influxdata/telegraf/plugins/inputs"
|
||||
)
|
||||
|
||||
type runner func(cmdName string, Timeout internal.Duration, UseSudo bool) (*bytes.Buffer, error)
|
||||
|
||||
// Unbound is used to store configuration values
|
||||
type Unbound struct {
|
||||
Binary string
|
||||
Timeout internal.Duration
|
||||
UseSudo bool
|
||||
|
||||
filter filter.Filter
|
||||
run runner
|
||||
}
|
||||
|
||||
var defaultBinary = "/usr/sbin/unbound-control"
|
||||
var defaultTimeout = internal.Duration{Duration: time.Second}
|
||||
|
||||
var sampleConfig = `
|
||||
## If running as a restricted user you can prepend sudo for additional access:
|
||||
#use_sudo = false
|
||||
|
||||
## The default location of the unbound-control binary can be overridden with:
|
||||
binary = "/usr/sbin/unbound-control"
|
||||
|
||||
## The default timeout of 1s can be overriden with:
|
||||
timeout = "1s"
|
||||
|
||||
## Use the builtin fielddrop/fieldpass telegraf filters in order to keep/remove specific fields
|
||||
fieldpass = ["total_*", "num_*","time_up", "mem_*"]
|
||||
`
|
||||
|
||||
func (s *Unbound) Description() string {
|
||||
return "A plugin to collect stats from Unbound - a validating, recursive, and caching DNS resolver "
|
||||
}
|
||||
|
||||
// SampleConfig displays configuration instructions
|
||||
func (s *Unbound) SampleConfig() string {
|
||||
return sampleConfig
|
||||
}
|
||||
|
||||
// Shell out to unbound_stat and return the output
|
||||
func unboundRunner(cmdName string, Timeout internal.Duration, UseSudo bool) (*bytes.Buffer, error) {
|
||||
cmdArgs := []string{"stats_noreset"}
|
||||
|
||||
cmd := exec.Command(cmdName, cmdArgs...)
|
||||
|
||||
if UseSudo {
|
||||
cmdArgs = append([]string{cmdName}, cmdArgs...)
|
||||
cmd = exec.Command("sudo", cmdArgs...)
|
||||
}
|
||||
|
||||
var out bytes.Buffer
|
||||
cmd.Stdout = &out
|
||||
err := internal.RunTimeout(cmd, Timeout.Duration)
|
||||
if err != nil {
|
||||
return &out, fmt.Errorf("error running unbound-control: %s", err)
|
||||
}
|
||||
|
||||
return &out, nil
|
||||
}
|
||||
|
||||
// Gather collects stats from unbound-control and adds them to the Accumulator
|
||||
//
|
||||
// All the dots in stat name will replaced by underscores. Histogram statistics will not be collected.
|
||||
func (s *Unbound) Gather(acc telegraf.Accumulator) error {
|
||||
|
||||
// Always exclude histrogram statistics
|
||||
stat_excluded := []string{"histogram.*"}
|
||||
filter_excluded, err := filter.Compile(stat_excluded)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
out, err := s.run(s.Binary, s.Timeout, s.UseSudo)
|
||||
if err != nil {
|
||||
return fmt.Errorf("error gathering metrics: %s", err)
|
||||
}
|
||||
|
||||
// Process values
|
||||
fields := make(map[string]interface{})
|
||||
scanner := bufio.NewScanner(out)
|
||||
for scanner.Scan() {
|
||||
|
||||
cols := strings.Split(scanner.Text(), "=")
|
||||
|
||||
// Check split correctness
|
||||
if len(cols) != 2 {
|
||||
continue
|
||||
}
|
||||
|
||||
stat := cols[0]
|
||||
value := cols[1]
|
||||
|
||||
// Filter value
|
||||
if filter_excluded.Match(stat) {
|
||||
continue
|
||||
}
|
||||
|
||||
field := strings.Replace(stat, ".", "_", -1)
|
||||
|
||||
fields[field], err = strconv.ParseFloat(value, 64)
|
||||
if err != nil {
|
||||
acc.AddError(fmt.Errorf("Expected a numerical value for %s = %v\n",
|
||||
stat, value))
|
||||
}
|
||||
}
|
||||
|
||||
acc.AddFields("unbound", fields, nil)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func init() {
|
||||
inputs.Add("unbound", func() telegraf.Input {
|
||||
return &Unbound{
|
||||
run: unboundRunner,
|
||||
Binary: defaultBinary,
|
||||
Timeout: defaultTimeout,
|
||||
UseSudo: false,
|
||||
}
|
||||
})
|
||||
}
|
||||
|
|
@ -0,0 +1,206 @@
|
|||
package unbound
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/influxdata/telegraf/internal"
|
||||
"github.com/influxdata/telegraf/testutil"
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
var TestTimeout = internal.Duration{Duration: time.Second}
|
||||
|
||||
func UnboundControl(output string, Timeout internal.Duration, useSudo bool) func(string, internal.Duration, bool) (*bytes.Buffer, error) {
|
||||
return func(string, internal.Duration, bool) (*bytes.Buffer, error) {
|
||||
return bytes.NewBuffer([]byte(output)), nil
|
||||
}
|
||||
}
|
||||
|
||||
func TestParseFullOutput(t *testing.T) {
|
||||
acc := &testutil.Accumulator{}
|
||||
v := &Unbound{
|
||||
run: UnboundControl(fullOutput, TestTimeout, true),
|
||||
}
|
||||
err := v.Gather(acc)
|
||||
|
||||
assert.NoError(t, err)
|
||||
|
||||
assert.True(t, acc.HasMeasurement("unbound"))
|
||||
|
||||
assert.Len(t, acc.Metrics, 1)
|
||||
assert.Equal(t, acc.NFields(), 63)
|
||||
|
||||
acc.AssertContainsFields(t, "unbound", parsedFullOutput)
|
||||
}
|
||||
|
||||
var parsedFullOutput = map[string]interface{}{
|
||||
"thread0_num_queries": float64(11907596),
|
||||
"thread0_num_cachehits": float64(11489288),
|
||||
"thread0_num_cachemiss": float64(418308),
|
||||
"thread0_num_prefetch": float64(0),
|
||||
"thread0_num_recursivereplies": float64(418308),
|
||||
"thread0_requestlist_avg": float64(0.400229),
|
||||
"thread0_requestlist_max": float64(11),
|
||||
"thread0_requestlist_overwritten": float64(0),
|
||||
"thread0_requestlist_exceeded": float64(0),
|
||||
"thread0_requestlist_current_all": float64(0),
|
||||
"thread0_requestlist_current_user": float64(0),
|
||||
"thread0_recursion_time_avg": float64(0.015020),
|
||||
"thread0_recursion_time_median": float64(0.00292343),
|
||||
"total_num_queries": float64(11907596),
|
||||
"total_num_cachehits": float64(11489288),
|
||||
"total_num_cachemiss": float64(418308),
|
||||
"total_num_prefetch": float64(0),
|
||||
"total_num_recursivereplies": float64(418308),
|
||||
"total_requestlist_avg": float64(0.400229),
|
||||
"total_requestlist_max": float64(11),
|
||||
"total_requestlist_overwritten": float64(0),
|
||||
"total_requestlist_exceeded": float64(0),
|
||||
"total_requestlist_current_all": float64(0),
|
||||
"total_requestlist_current_user": float64(0),
|
||||
"total_recursion_time_avg": float64(0.015020),
|
||||
"total_recursion_time_median": float64(0.00292343),
|
||||
"time_now": float64(1509968734.735180),
|
||||
"time_up": float64(1472897.672099),
|
||||
"time_elapsed": float64(1472897.672099),
|
||||
"mem_total_sbrk": float64(7462912),
|
||||
"mem_cache_rrset": float64(285056),
|
||||
"mem_cache_message": float64(320000),
|
||||
"mem_mod_iterator": float64(16532),
|
||||
"mem_mod_validator": float64(112097),
|
||||
"num_query_type_A": float64(7062688),
|
||||
"num_query_type_PTR": float64(43097),
|
||||
"num_query_type_TXT": float64(2998),
|
||||
"num_query_type_AAAA": float64(4499711),
|
||||
"num_query_type_SRV": float64(5691),
|
||||
"num_query_type_ANY": float64(293411),
|
||||
"num_query_class_IN": float64(11907596),
|
||||
"num_query_opcode_QUERY": float64(11907596),
|
||||
"num_query_tcp": float64(293411),
|
||||
"num_query_ipv6": float64(0),
|
||||
"num_query_flags_QR": float64(0),
|
||||
"num_query_flags_AA": float64(0),
|
||||
"num_query_flags_TC": float64(0),
|
||||
"num_query_flags_RD": float64(11907596),
|
||||
"num_query_flags_RA": float64(0),
|
||||
"num_query_flags_Z": float64(0),
|
||||
"num_query_flags_AD": float64(1),
|
||||
"num_query_flags_CD": float64(0),
|
||||
"num_query_edns_present": float64(6202),
|
||||
"num_query_edns_DO": float64(6201),
|
||||
"num_answer_rcode_NOERROR": float64(11857463),
|
||||
"num_answer_rcode_SERVFAIL": float64(17),
|
||||
"num_answer_rcode_NXDOMAIN": float64(50116),
|
||||
"num_answer_rcode_nodata": float64(3914360),
|
||||
"num_answer_secure": float64(44289),
|
||||
"num_answer_bogus": float64(1),
|
||||
"num_rrset_bogus": float64(0),
|
||||
"unwanted_queries": float64(0),
|
||||
"unwanted_replies": float64(0),
|
||||
}
|
||||
|
||||
var fullOutput = `thread0.num.queries=11907596
|
||||
thread0.num.cachehits=11489288
|
||||
thread0.num.cachemiss=418308
|
||||
thread0.num.prefetch=0
|
||||
thread0.num.recursivereplies=418308
|
||||
thread0.requestlist.avg=0.400229
|
||||
thread0.requestlist.max=11
|
||||
thread0.requestlist.overwritten=0
|
||||
thread0.requestlist.exceeded=0
|
||||
thread0.requestlist.current.all=0
|
||||
thread0.requestlist.current.user=0
|
||||
thread0.recursion.time.avg=0.015020
|
||||
thread0.recursion.time.median=0.00292343
|
||||
total.num.queries=11907596
|
||||
total.num.cachehits=11489288
|
||||
total.num.cachemiss=418308
|
||||
total.num.prefetch=0
|
||||
total.num.recursivereplies=418308
|
||||
total.requestlist.avg=0.400229
|
||||
total.requestlist.max=11
|
||||
total.requestlist.overwritten=0
|
||||
total.requestlist.exceeded=0
|
||||
total.requestlist.current.all=0
|
||||
total.requestlist.current.user=0
|
||||
total.recursion.time.avg=0.015020
|
||||
total.recursion.time.median=0.00292343
|
||||
time.now=1509968734.735180
|
||||
time.up=1472897.672099
|
||||
time.elapsed=1472897.672099
|
||||
mem.total.sbrk=7462912
|
||||
mem.cache.rrset=285056
|
||||
mem.cache.message=320000
|
||||
mem.mod.iterator=16532
|
||||
mem.mod.validator=112097
|
||||
histogram.000000.000000.to.000000.000001=20
|
||||
histogram.000000.000001.to.000000.000002=5
|
||||
histogram.000000.000002.to.000000.000004=13
|
||||
histogram.000000.000004.to.000000.000008=18
|
||||
histogram.000000.000008.to.000000.000016=67
|
||||
histogram.000000.000016.to.000000.000032=94
|
||||
histogram.000000.000032.to.000000.000064=113
|
||||
histogram.000000.000064.to.000000.000128=190
|
||||
histogram.000000.000128.to.000000.000256=369
|
||||
histogram.000000.000256.to.000000.000512=1034
|
||||
histogram.000000.000512.to.000000.001024=5503
|
||||
histogram.000000.001024.to.000000.002048=155724
|
||||
histogram.000000.002048.to.000000.004096=107623
|
||||
histogram.000000.004096.to.000000.008192=17739
|
||||
histogram.000000.008192.to.000000.016384=4177
|
||||
histogram.000000.016384.to.000000.032768=82021
|
||||
histogram.000000.032768.to.000000.065536=33772
|
||||
histogram.000000.065536.to.000000.131072=7159
|
||||
histogram.000000.131072.to.000000.262144=1109
|
||||
histogram.000000.262144.to.000000.524288=295
|
||||
histogram.000000.524288.to.000001.000000=890
|
||||
histogram.000001.000000.to.000002.000000=136
|
||||
histogram.000002.000000.to.000004.000000=233
|
||||
histogram.000004.000000.to.000008.000000=2
|
||||
histogram.000008.000000.to.000016.000000=0
|
||||
histogram.000016.000000.to.000032.000000=2
|
||||
histogram.000032.000000.to.000064.000000=0
|
||||
histogram.000064.000000.to.000128.000000=0
|
||||
histogram.000128.000000.to.000256.000000=0
|
||||
histogram.000256.000000.to.000512.000000=0
|
||||
histogram.000512.000000.to.001024.000000=0
|
||||
histogram.001024.000000.to.002048.000000=0
|
||||
histogram.002048.000000.to.004096.000000=0
|
||||
histogram.004096.000000.to.008192.000000=0
|
||||
histogram.008192.000000.to.016384.000000=0
|
||||
histogram.016384.000000.to.032768.000000=0
|
||||
histogram.032768.000000.to.065536.000000=0
|
||||
histogram.065536.000000.to.131072.000000=0
|
||||
histogram.131072.000000.to.262144.000000=0
|
||||
histogram.262144.000000.to.524288.000000=0
|
||||
num.query.type.A=7062688
|
||||
num.query.type.PTR=43097
|
||||
num.query.type.TXT=2998
|
||||
num.query.type.AAAA=4499711
|
||||
num.query.type.SRV=5691
|
||||
num.query.type.ANY=293411
|
||||
num.query.class.IN=11907596
|
||||
num.query.opcode.QUERY=11907596
|
||||
num.query.tcp=293411
|
||||
num.query.ipv6=0
|
||||
num.query.flags.QR=0
|
||||
num.query.flags.AA=0
|
||||
num.query.flags.TC=0
|
||||
num.query.flags.RD=11907596
|
||||
num.query.flags.RA=0
|
||||
num.query.flags.Z=0
|
||||
num.query.flags.AD=1
|
||||
num.query.flags.CD=0
|
||||
num.query.edns.present=6202
|
||||
num.query.edns.DO=6201
|
||||
num.answer.rcode.NOERROR=11857463
|
||||
num.answer.rcode.SERVFAIL=17
|
||||
num.answer.rcode.NXDOMAIN=50116
|
||||
num.answer.rcode.nodata=3914360
|
||||
num.answer.secure=44289
|
||||
num.answer.bogus=1
|
||||
num.rrset.bogus=0
|
||||
unwanted.queries=0
|
||||
unwanted.replies=0`
|
||||
Loading…
Reference in New Issue