Add support for multiple line text and perfdata to nagios parser (#5601)

This commit is contained in:
scier 2019-03-25 16:24:42 -07:00 committed by Daniel Nelson
parent e793a69533
commit 60027cf902
4 changed files with 708 additions and 183 deletions

View File

@ -3,12 +3,12 @@ package exec
import (
"bytes"
"fmt"
"log"
"os/exec"
"path/filepath"
"runtime"
"strings"
"sync"
"syscall"
"time"
"github.com/kballard/go-shellquote"
@ -61,39 +61,18 @@ func NewExec() *Exec {
}
type Runner interface {
Run(*Exec, string, telegraf.Accumulator) ([]byte, error)
Run(string, time.Duration) ([]byte, []byte, error)
}
type CommandRunner struct{}
func AddNagiosState(exitCode error, acc telegraf.Accumulator) error {
nagiosState := 0
if exitCode != nil {
exiterr, ok := exitCode.(*exec.ExitError)
if ok {
status, ok := exiterr.Sys().(syscall.WaitStatus)
if ok {
nagiosState = status.ExitStatus()
} else {
return fmt.Errorf("exec: unable to get nagios plugin exit code")
}
} else {
return fmt.Errorf("exec: unable to get nagios plugin exit code")
}
}
fields := map[string]interface{}{"state": nagiosState}
acc.AddFields("nagios_state", fields, nil)
return nil
}
func (c CommandRunner) Run(
e *Exec,
command string,
acc telegraf.Accumulator,
) ([]byte, error) {
timeout time.Duration,
) ([]byte, []byte, error) {
split_cmd, err := shellquote.Split(command)
if err != nil || len(split_cmd) == 0 {
return nil, fmt.Errorf("exec: unable to parse command, %s", err)
return nil, nil, fmt.Errorf("exec: unable to parse command, %s", err)
}
cmd := exec.Command(split_cmd[0], split_cmd[1:]...)
@ -105,44 +84,35 @@ func (c CommandRunner) Run(
cmd.Stdout = &out
cmd.Stderr = &stderr
if err := internal.RunTimeout(cmd, e.Timeout.Duration); err != nil {
switch e.parser.(type) {
case *nagios.NagiosParser:
AddNagiosState(err, acc)
default:
var errMessage = ""
if stderr.Len() > 0 {
stderr = removeCarriageReturns(stderr)
// Limit the number of bytes.
didTruncate := false
if stderr.Len() > MaxStderrBytes {
stderr.Truncate(MaxStderrBytes)
didTruncate = true
}
if i := bytes.IndexByte(stderr.Bytes(), '\n'); i > 0 {
// Only show truncation if the newline wasn't the last character.
if i < stderr.Len()-1 {
didTruncate = true
}
stderr.Truncate(i)
}
if didTruncate {
stderr.WriteString("...")
}
errMessage = fmt.Sprintf(": %s", stderr.String())
}
return nil, fmt.Errorf("exec: %s for command '%s'%s", err, command, errMessage)
}
} else {
switch e.parser.(type) {
case *nagios.NagiosParser:
AddNagiosState(nil, acc)
}
}
runErr := internal.RunTimeout(cmd, timeout)
out = removeCarriageReturns(out)
return out.Bytes(), nil
if stderr.Len() > 0 {
stderr = removeCarriageReturns(stderr)
stderr = truncate(stderr)
}
return out.Bytes(), stderr.Bytes(), runErr
}
func truncate(buf bytes.Buffer) bytes.Buffer {
// Limit the number of bytes.
didTruncate := false
if buf.Len() > MaxStderrBytes {
buf.Truncate(MaxStderrBytes)
didTruncate = true
}
if i := bytes.IndexByte(buf.Bytes(), '\n'); i > 0 {
// Only show truncation if the newline wasn't the last character.
if i < buf.Len()-1 {
didTruncate = true
}
buf.Truncate(i)
}
if didTruncate {
buf.WriteString("...")
}
return buf
}
// removeCarriageReturns removes all carriage returns from the input if the
@ -173,9 +143,11 @@ func removeCarriageReturns(b bytes.Buffer) bytes.Buffer {
func (e *Exec) ProcessCommand(command string, acc telegraf.Accumulator, wg *sync.WaitGroup) {
defer wg.Done()
_, isNagios := e.parser.(*nagios.NagiosParser)
out, err := e.runner.Run(e, command, acc)
if err != nil {
out, errbuf, runErr := e.runner.Run(command, e.Timeout.Duration)
if !isNagios && runErr != nil {
err := fmt.Errorf("exec: %s for command '%s': %s", runErr, command, string(errbuf))
acc.AddError(err)
return
}
@ -183,10 +155,18 @@ func (e *Exec) ProcessCommand(command string, acc telegraf.Accumulator, wg *sync
metrics, err := e.parser.Parse(out)
if err != nil {
acc.AddError(err)
} else {
for _, metric := range metrics {
acc.AddFields(metric.Name(), metric.Fields(), metric.Tags(), metric.Time())
return
}
if isNagios {
metrics, err = nagios.TryAddState(runErr, metrics)
if err != nil {
log.Printf("E! [inputs.exec] failed to add nagios state: %s", err)
}
}
for _, m := range metrics {
acc.AddMetric(m)
}
}

View File

@ -5,8 +5,8 @@ import (
"fmt"
"runtime"
"testing"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/parsers"
"github.com/influxdata/telegraf/testutil"
@ -75,21 +75,20 @@ var crTests = []CarriageReturnTest{
type runnerMock struct {
out []byte
errout []byte
err error
}
func newRunnerMock(out []byte, err error) Runner {
func newRunnerMock(out []byte, errout []byte, err error) Runner {
return &runnerMock{
out: out,
errout: errout,
err: err,
}
}
func (r runnerMock) Run(e *Exec, command string, acc telegraf.Accumulator) ([]byte, error) {
if r.err != nil {
return nil, r.err
}
return r.out, nil
func (r runnerMock) Run(command string, _ time.Duration) ([]byte, []byte, error) {
return r.out, r.errout, r.err
}
func TestExec(t *testing.T) {
@ -98,7 +97,7 @@ func TestExec(t *testing.T) {
MetricName: "exec",
})
e := &Exec{
runner: newRunnerMock([]byte(validJson), nil),
runner: newRunnerMock([]byte(validJson), nil, nil),
Commands: []string{"testcommand arg1"},
parser: parser,
}
@ -127,7 +126,7 @@ func TestExecMalformed(t *testing.T) {
MetricName: "exec",
})
e := &Exec{
runner: newRunnerMock([]byte(malformedJson), nil),
runner: newRunnerMock([]byte(malformedJson), nil, nil),
Commands: []string{"badcommand arg1"},
parser: parser,
}
@ -143,7 +142,7 @@ func TestCommandError(t *testing.T) {
MetricName: "exec",
})
e := &Exec{
runner: newRunnerMock(nil, fmt.Errorf("exit status code 1")),
runner: newRunnerMock(nil, nil, fmt.Errorf("exit status code 1")),
Commands: []string{"badcommand"},
parser: parser,
}
@ -201,6 +200,66 @@ func TestExecCommandWithoutGlobAndPath(t *testing.T) {
acc.AssertContainsFields(t, "metric", fields)
}
func TestTruncate(t *testing.T) {
tests := []struct {
name string
bufF func() *bytes.Buffer
expF func() *bytes.Buffer
}{
{
name: "should not truncate",
bufF: func() *bytes.Buffer {
var b bytes.Buffer
b.WriteString("hello world")
return &b
},
expF: func() *bytes.Buffer {
var b bytes.Buffer
b.WriteString("hello world")
return &b
},
},
{
name: "should truncate up to the new line",
bufF: func() *bytes.Buffer {
var b bytes.Buffer
b.WriteString("hello world\nand all the people")
return &b
},
expF: func() *bytes.Buffer {
var b bytes.Buffer
b.WriteString("hello world...")
return &b
},
},
{
name: "should truncate to the MaxStderrBytes",
bufF: func() *bytes.Buffer {
var b bytes.Buffer
for i := 0; i < 2*MaxStderrBytes; i++ {
b.WriteByte('b')
}
return &b
},
expF: func() *bytes.Buffer {
var b bytes.Buffer
for i := 0; i < MaxStderrBytes; i++ {
b.WriteByte('b')
}
b.WriteString("...")
return &b
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
res := truncate(*tt.bufF())
require.Equal(t, tt.expF().Bytes(), res.Bytes())
})
}
}
func TestRemoveCarriageReturns(t *testing.T) {
if runtime.GOOS == "windows" {
// Test that all carriage returns are removed

View File

@ -1,17 +1,78 @@
package nagios
import (
"bufio"
"bytes"
"errors"
"fmt"
"log"
"os/exec"
"regexp"
"strconv"
"strings"
"syscall"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
)
// getExitCode get the exit code from an error value which is the result
// of running a command through exec package api.
func getExitCode(err error) (int, error) {
if err == nil {
return 0, nil
}
ee, ok := err.(*exec.ExitError)
if !ok {
// If it is not an *exec.ExitError, then it must be
// an io error, but docs do not say anything about the
// exit code in this case.
return 0, errors.New("expected *exec.ExitError")
}
ws, ok := ee.Sys().(syscall.WaitStatus)
if !ok {
return 0, errors.New("expected syscall.WaitStatus")
}
return ws.ExitStatus(), nil
}
// TryAddState attempts to add a state derived from the runErr.
// If any error occurs, it is guaranteed to be returned along with
// the initial metric slice.
func TryAddState(runErr error, metrics []telegraf.Metric) ([]telegraf.Metric, error) {
state, err := getExitCode(runErr)
if err != nil {
return metrics, fmt.Errorf("exec: get exit code: %s", err)
}
for _, m := range metrics {
if m.Name() == "nagios_state" {
m.AddField("state", state)
return metrics, nil
}
}
var ts time.Time
if len(metrics) != 0 {
ts = metrics[0].Time()
} else {
ts = time.Now().UTC()
}
f := map[string]interface{}{
"state": state,
}
m, err := metric.New("nagios_state", nil, f, ts)
if err != nil {
return metrics, err
}
metrics = append(metrics, m)
return metrics, nil
}
type NagiosParser struct {
MetricName string
DefaultTags map[string]string
@ -34,27 +95,88 @@ func (p *NagiosParser) SetDefaultTags(tags map[string]string) {
}
func (p *NagiosParser) Parse(buf []byte) ([]telegraf.Metric, error) {
ts := time.Now().UTC()
s := bufio.NewScanner(bytes.NewReader(buf))
var msg bytes.Buffer
var longmsg bytes.Buffer
metrics := make([]telegraf.Metric, 0)
lines := strings.Split(strings.TrimSpace(string(buf)), "\n")
for _, line := range lines {
data_splitted := strings.Split(line, "|")
if len(data_splitted) != 2 {
// got human readable output only or bad line
continue
// Scan the first line.
if !s.Scan() && s.Err() != nil {
return nil, s.Err()
}
m, err := parsePerfData(data_splitted[1])
parts := bytes.Split(s.Bytes(), []byte{'|'})
switch len(parts) {
case 2:
ms, err := parsePerfData(string(parts[1]), ts)
if err != nil {
log.Printf("E! [parser.nagios] failed to parse performance data: %s\n", err.Error())
continue
}
metrics = append(metrics, m...)
metrics = append(metrics, ms...)
fallthrough
case 1:
msg.Write(bytes.TrimSpace(parts[0]))
default:
return nil, errors.New("illegal output format")
}
// Read long output.
for s.Scan() {
if bytes.Contains(s.Bytes(), []byte{'|'}) {
parts := bytes.Split(s.Bytes(), []byte{'|'})
if longmsg.Len() != 0 {
longmsg.WriteByte('\n')
}
longmsg.Write(bytes.TrimSpace(parts[0]))
ms, err := parsePerfData(string(parts[1]), ts)
if err != nil {
log.Printf("E! [parser.nagios] failed to parse performance data: %s\n", err.Error())
}
metrics = append(metrics, ms...)
break
}
if longmsg.Len() != 0 {
longmsg.WriteByte('\n')
}
longmsg.Write(bytes.TrimSpace((s.Bytes())))
}
// Parse extra performance data.
for s.Scan() {
ms, err := parsePerfData(s.Text(), ts)
if err != nil {
log.Printf("E! [parser.nagios] failed to parse performance data: %s\n", err.Error())
}
metrics = append(metrics, ms...)
}
if s.Err() != nil {
log.Printf("D! [parser.nagios] unexpected io error: %s\n", s.Err())
}
// Create nagios state.
fields := map[string]interface{}{
"service_output": msg.String(),
}
if longmsg.Len() != 0 {
fields["long_service_output"] = longmsg.String()
}
m, err := metric.New("nagios_state", nil, fields, ts)
if err == nil {
metrics = append(metrics, m)
} else {
log.Printf("E! [parser.nagios] failed to add nagios_state: %s\n", err)
}
return metrics, nil
}
func parsePerfData(perfdatas string) ([]telegraf.Metric, error) {
func parsePerfData(perfdatas string, timestamp time.Time) ([]telegraf.Metric, error) {
metrics := make([]telegraf.Metric, 0)
for _, unParsedPerf := range perfSplitRegExp.FindAllString(perfdatas, -1) {
@ -125,7 +247,7 @@ func parsePerfData(perfdatas string) ([]telegraf.Metric, error) {
}
// Create metric
metric, err := metric.New("nagios", tags, fields, time.Now().UTC())
metric, err := metric.New("nagios", tags, fields, timestamp)
if err != nil {
return nil, err
}

View File

@ -1,33 +1,244 @@
package nagios
import (
"errors"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
"github.com/influxdata/telegraf/testutil"
)
const validOutput1 = `PING OK - Packet loss = 0%, RTA = 0.30 ms|rta=0.298000ms;4000.000000;6000.000000;0.000000 pl=0%;80;90;0;100
This is a long output
with three lines
`
const validOutput2 = "TCP OK - 0.008 second response time on port 80|time=0.008457s;;;0.000000;10.000000"
const validOutput3 = "TCP OK - 0.008 second response time on port 80|time=0.008457"
const validOutput4 = "OK: Load average: 0.00, 0.01, 0.05 | 'load1'=0.00;~:4;@0:6;0; 'load5'=0.01;3;0:5;0; 'load15'=0.05;0:2;0:4;0;"
const invalidOutput3 = "PING OK - Packet loss = 0%, RTA = 0.30 ms"
const invalidOutput4 = "PING OK - Packet loss = 0%, RTA = 0.30 ms| =3;;;; dgasdg =;;;; sff=;;;;"
func TestGetExitCode(t *testing.T) {
tests := []struct {
name string
errF func() error
expCode int
expErr error
}{
{
name: "nil error passed is ok",
errF: func() error {
return nil
},
expCode: 0,
expErr: nil,
},
{
name: "unexpected error type",
errF: func() error {
return errors.New("I am not *exec.ExitError")
},
expCode: 0,
expErr: errors.New("expected *exec.ExitError"),
},
}
func TestParseValidOutput(t *testing.T) {
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
e := tt.errF()
code, err := getExitCode(e)
require.Equal(t, tt.expCode, code)
require.Equal(t, tt.expErr, err)
})
}
}
type metricBuilder struct {
name string
tags map[string]string
fields map[string]interface{}
timestamp time.Time
}
func mb() *metricBuilder {
return &metricBuilder{}
}
func (b *metricBuilder) n(v string) *metricBuilder {
b.name = v
return b
}
func (b *metricBuilder) t(k, v string) *metricBuilder {
if b.tags == nil {
b.tags = make(map[string]string)
}
b.tags[k] = v
return b
}
func (b *metricBuilder) f(k string, v interface{}) *metricBuilder {
if b.fields == nil {
b.fields = make(map[string]interface{})
}
b.fields[k] = v
return b
}
func (b *metricBuilder) ts(v time.Time) *metricBuilder {
b.timestamp = v
return b
}
func (b *metricBuilder) b() telegraf.Metric {
m, err := metric.New(b.name, b.tags, b.fields, b.timestamp)
if err != nil {
panic(err)
}
return m
}
// assertEqual asserts two slices to be equal. Note, that the order
// of the entries matters.
func assertEqual(t *testing.T, exp, actual []telegraf.Metric) {
require.Equal(t, len(exp), len(actual))
for i := 0; i < len(exp); i++ {
ok := testutil.MetricEqual(exp[i], actual[i])
require.True(t, ok)
}
}
func TestTryAddState(t *testing.T) {
tests := []struct {
name string
runErrF func() error
metrics []telegraf.Metric
assertF func(*testing.T, []telegraf.Metric, error)
}{
{
name: "should append state=0 field to existing metric",
runErrF: func() error {
return nil
},
metrics: []telegraf.Metric{
mb().
n("nagios").
f("perfdata", 0).b(),
mb().
n("nagios_state").
f("service_output", "OK: system working").b(),
},
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
exp := []telegraf.Metric{
mb().
n("nagios").
f("perfdata", 0).b(),
mb().
n("nagios_state").
f("service_output", "OK: system working").
f("state", 0).b(),
}
assertEqual(t, exp, metrics)
require.NoError(t, err)
},
},
{
name: "should create 'nagios_state state=0' and same timestamp as others",
runErrF: func() error {
return nil
},
metrics: []telegraf.Metric{
mb().
n("nagios").
f("perfdata", 0).b(),
},
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
exp := []telegraf.Metric{
mb().
n("nagios").
f("perfdata", 0).b(),
mb().
n("nagios_state").
f("state", 0).b(),
}
assertEqual(t, exp, metrics)
require.NoError(t, err)
},
},
{
name: "should create 'nagios_state state=0' and recent timestamp",
runErrF: func() error {
return nil
},
metrics: []telegraf.Metric{},
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
require.Len(t, metrics, 1)
m := metrics[0]
require.Equal(t, "nagios_state", m.Name())
s, ok := m.GetField("state")
require.True(t, ok)
require.Equal(t, int64(0), s)
require.WithinDuration(t, time.Now().UTC(), m.Time(), 10*time.Second)
require.NoError(t, err)
},
},
{
name: "should return original metrics and an error",
runErrF: func() error {
return errors.New("non parsable error")
},
metrics: []telegraf.Metric{
mb().
n("nagios").
f("perfdata", 0).b(),
},
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
exp := []telegraf.Metric{
mb().
n("nagios").
f("perfdata", 0).b(),
}
expErr := "exec: get exit code: expected *exec.ExitError"
assertEqual(t, exp, metrics)
require.Equal(t, expErr, err.Error())
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
metrics, err := TryAddState(tt.runErrF(), tt.metrics)
tt.assertF(t, metrics, err)
})
}
}
func assertNagiosState(t *testing.T, m telegraf.Metric, f map[string]interface{}) {
assert.Equal(t, map[string]string{}, m.Tags())
assert.Equal(t, f, m.Fields())
}
func TestParse(t *testing.T) {
parser := NagiosParser{
MetricName: "nagios_test",
}
// Output1
metrics, err := parser.Parse([]byte(validOutput1))
tests := []struct {
name string
input string
assertF func(*testing.T, []telegraf.Metric, error)
}{
{
name: "valid output 1",
input: `PING OK - Packet loss = 0%, RTA = 0.30 ms|rta=0.298000ms;4000.000000;6000.000000;0.000000 pl=0%;80;90;0;100
This is a long output
with three lines
`,
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
require.NoError(t, err)
require.Len(t, metrics, 2)
require.Len(t, metrics, 3)
// rta
assert.Equal(t, "rta", metrics[0].Tags()["perfdata"])
assert.Equal(t, map[string]string{
"unit": "ms",
"perfdata": "rta",
}, metrics[0].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(0.298),
"warning_lt": float64(0),
@ -36,9 +247,12 @@ func TestParseValidOutput(t *testing.T) {
"critical_gt": float64(6000),
"min": float64(0),
}, metrics[0].Fields())
assert.Equal(t, map[string]string{"unit": "ms", "perfdata": "rta"}, metrics[0].Tags())
// pl
assert.Equal(t, "pl", metrics[1].Tags()["perfdata"])
assert.Equal(t, map[string]string{
"unit": "%",
"perfdata": "pl",
}, metrics[1].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(0),
"warning_lt": float64(0),
@ -48,38 +262,64 @@ func TestParseValidOutput(t *testing.T) {
"min": float64(0),
"max": float64(100),
}, metrics[1].Fields())
assert.Equal(t, map[string]string{"unit": "%", "perfdata": "pl"}, metrics[1].Tags())
// Output2
metrics, err = parser.Parse([]byte(validOutput2))
assertNagiosState(t, metrics[2], map[string]interface{}{
"service_output": "PING OK - Packet loss = 0%, RTA = 0.30 ms",
"long_service_output": "This is a long output\nwith three lines",
})
},
},
{
name: "valid output 2",
input: "TCP OK - 0.008 second response time on port 80|time=0.008457s;;;0.000000;10.000000",
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
require.NoError(t, err)
require.Len(t, metrics, 1)
require.Len(t, metrics, 2)
// time
assert.Equal(t, "time", metrics[0].Tags()["perfdata"])
assert.Equal(t, map[string]string{
"unit": "s",
"perfdata": "time",
}, metrics[0].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(0.008457),
"min": float64(0),
"max": float64(10),
}, metrics[0].Fields())
assert.Equal(t, map[string]string{"unit": "s", "perfdata": "time"}, metrics[0].Tags())
// Output3
metrics, err = parser.Parse([]byte(validOutput3))
assertNagiosState(t, metrics[1], map[string]interface{}{
"service_output": "TCP OK - 0.008 second response time on port 80",
})
},
},
{
name: "valid output 3",
input: "TCP OK - 0.008 second response time on port 80|time=0.008457",
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
require.NoError(t, err)
require.Len(t, metrics, 1)
require.Len(t, metrics, 2)
// time
assert.Equal(t, "time", metrics[0].Tags()["perfdata"])
assert.Equal(t, map[string]string{
"perfdata": "time",
}, metrics[0].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(0.008457),
}, metrics[0].Fields())
assert.Equal(t, map[string]string{"perfdata": "time"}, metrics[0].Tags())
// Output4
metrics, err = parser.Parse([]byte(validOutput4))
assertNagiosState(t, metrics[1], map[string]interface{}{
"service_output": "TCP OK - 0.008 second response time on port 80",
})
},
},
{
name: "valid output 4",
input: "OK: Load average: 0.00, 0.01, 0.05 | 'load1'=0.00;~:4;@0:6;0; 'load5'=0.01;3;0:5;0; 'load15'=0.05;0:2;0:4;0;",
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
require.NoError(t, err)
require.Len(t, metrics, 3)
// load
// const validOutput4 = "OK: Load average: 0.00, 0.01, 0.05 | 'load1'=0.00;0:4;0:6;0; 'load5'=0.01;0:3;0:5;0; 'load15'=0.05;0:2;0:4;0;"
require.Len(t, metrics, 4)
// load1
assert.Equal(t, map[string]string{
"perfdata": "load1",
}, metrics[0].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(0.00),
"warning_lt": MinFloat64,
@ -89,24 +329,148 @@ func TestParseValidOutput(t *testing.T) {
"min": float64(0),
}, metrics[0].Fields())
assert.Equal(t, map[string]string{"perfdata": "load1"}, metrics[0].Tags())
}
// load5
assert.Equal(t, map[string]string{
"perfdata": "load5",
}, metrics[1].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(0.01),
"warning_gt": float64(3),
"warning_lt": float64(0),
"critical_lt": float64(0),
"critical_gt": float64(5),
"min": float64(0),
}, metrics[1].Fields())
func TestParseInvalidOutput(t *testing.T) {
parser := NagiosParser{
MetricName: "nagios_test",
// load15
assert.Equal(t, map[string]string{
"perfdata": "load15",
}, metrics[2].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(0.05),
"warning_lt": float64(0),
"warning_gt": float64(2),
"critical_lt": float64(0),
"critical_gt": float64(4),
"min": float64(0),
}, metrics[2].Fields())
assertNagiosState(t, metrics[3], map[string]interface{}{
"service_output": "OK: Load average: 0.00, 0.01, 0.05",
})
},
},
{
name: "no perf data",
input: "PING OK - Packet loss = 0%, RTA = 0.30 ms",
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
require.NoError(t, err)
require.Len(t, metrics, 1)
assertNagiosState(t, metrics[0], map[string]interface{}{
"service_output": "PING OK - Packet loss = 0%, RTA = 0.30 ms",
})
},
},
{
name: "malformed perf data",
input: "PING OK - Packet loss = 0%, RTA = 0.30 ms| =3;;;; dgasdg =;;;; sff=;;;;",
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
require.NoError(t, err)
require.Len(t, metrics, 1)
assertNagiosState(t, metrics[0], map[string]interface{}{
"service_output": "PING OK - Packet loss = 0%, RTA = 0.30 ms",
})
},
},
{
name: "from https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/3/en/pluginapi.html",
input: `DISK OK - free space: / 3326 MB (56%); | /=2643MB;5948;5958;0;5968
/ 15272 MB (77%);
/boot 68 MB (69%);
/home 69357 MB (27%);
/var/log 819 MB (84%); | /boot=68MB;88;93;0;98
/home=69357MB;253404;253409;0;253414
/var/log=818MB;970;975;0;980
`,
assertF: func(t *testing.T, metrics []telegraf.Metric, err error) {
require.NoError(t, err)
require.Len(t, metrics, 5)
// /=2643MB;5948;5958;0;5968
assert.Equal(t, map[string]string{
"unit": "MB",
"perfdata": "/",
}, metrics[0].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(2643),
"warning_lt": float64(0),
"warning_gt": float64(5948),
"critical_lt": float64(0),
"critical_gt": float64(5958),
"min": float64(0),
"max": float64(5968),
}, metrics[0].Fields())
// /boot=68MB;88;93;0;98
assert.Equal(t, map[string]string{
"unit": "MB",
"perfdata": "/boot",
}, metrics[1].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(68),
"warning_lt": float64(0),
"warning_gt": float64(88),
"critical_lt": float64(0),
"critical_gt": float64(93),
"min": float64(0),
"max": float64(98),
}, metrics[1].Fields())
// /home=69357MB;253404;253409;0;253414
assert.Equal(t, map[string]string{
"unit": "MB",
"perfdata": "/home",
}, metrics[2].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(69357),
"warning_lt": float64(0),
"warning_gt": float64(253404),
"critical_lt": float64(0),
"critical_gt": float64(253409),
"min": float64(0),
"max": float64(253414),
}, metrics[2].Fields())
// /var/log=818MB;970;975;0;980
assert.Equal(t, map[string]string{
"unit": "MB",
"perfdata": "/var/log",
}, metrics[3].Tags())
assert.Equal(t, map[string]interface{}{
"value": float64(818),
"warning_lt": float64(0),
"warning_gt": float64(970),
"critical_lt": float64(0),
"critical_gt": float64(975),
"min": float64(0),
"max": float64(980),
}, metrics[3].Fields())
assertNagiosState(t, metrics[4], map[string]interface{}{
"service_output": "DISK OK - free space: / 3326 MB (56%);",
"long_service_output": "/ 15272 MB (77%);\n/boot 68 MB (69%);\n/home 69357 MB (27%);\n/var/log 819 MB (84%);",
})
},
},
}
// invalidOutput3
metrics, err := parser.Parse([]byte(invalidOutput3))
require.NoError(t, err)
require.Len(t, metrics, 0)
// invalidOutput4
metrics, err = parser.Parse([]byte(invalidOutput4))
require.NoError(t, err)
require.Len(t, metrics, 0)
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
metrics, err := parser.Parse([]byte(tt.input))
tt.assertF(t, metrics, err)
})
}
}
func TestParseThreshold(t *testing.T) {