405 lines
9.5 KiB
Go
405 lines
9.5 KiB
Go
package prometheus
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/influxdata/telegraf"
|
|
inputs "github.com/influxdata/telegraf/plugins/inputs/prometheus"
|
|
"github.com/influxdata/telegraf/testutil"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestMetricVersion2(t *testing.T) {
|
|
Logger := testutil.Logger{Name: "outputs.prometheus_client"}
|
|
tests := []struct {
|
|
name string
|
|
output *PrometheusClient
|
|
metrics []telegraf.Metric
|
|
expected []byte
|
|
}{
|
|
{
|
|
name: "untyped telegraf metric",
|
|
output: &PrometheusClient{
|
|
Listen: ":0",
|
|
MetricVersion: 2,
|
|
CollectorsExclude: []string{"gocollector", "process"},
|
|
Path: "/metrics",
|
|
Log: Logger,
|
|
},
|
|
metrics: []telegraf.Metric{
|
|
testutil.MustMetric(
|
|
"cpu",
|
|
map[string]string{
|
|
"host": "example.org",
|
|
},
|
|
map[string]interface{}{
|
|
"time_idle": 42.0,
|
|
},
|
|
time.Unix(0, 0),
|
|
),
|
|
},
|
|
expected: []byte(`
|
|
# HELP cpu_time_idle Telegraf collected metric
|
|
# TYPE cpu_time_idle untyped
|
|
cpu_time_idle{host="example.org"} 42
|
|
`),
|
|
},
|
|
{
|
|
name: "when export timestamp is true timestamp is present in the metric",
|
|
output: &PrometheusClient{
|
|
Listen: ":0",
|
|
MetricVersion: 2,
|
|
CollectorsExclude: []string{"gocollector", "process"},
|
|
Path: "/metrics",
|
|
ExportTimestamp: true,
|
|
Log: Logger,
|
|
},
|
|
metrics: []telegraf.Metric{
|
|
testutil.MustMetric(
|
|
"cpu",
|
|
map[string]string{
|
|
"host": "example.org",
|
|
},
|
|
map[string]interface{}{
|
|
"time_idle": 42.0,
|
|
},
|
|
time.Unix(0, 0),
|
|
),
|
|
},
|
|
expected: []byte(`
|
|
# HELP cpu_time_idle Telegraf collected metric
|
|
# TYPE cpu_time_idle untyped
|
|
cpu_time_idle{host="example.org"} 42 0
|
|
`),
|
|
},
|
|
{
|
|
name: "strings as labels",
|
|
output: &PrometheusClient{
|
|
Listen: ":0",
|
|
MetricVersion: 2,
|
|
CollectorsExclude: []string{"gocollector", "process"},
|
|
Path: "/metrics",
|
|
StringAsLabel: true,
|
|
Log: Logger,
|
|
},
|
|
metrics: []telegraf.Metric{
|
|
testutil.MustMetric(
|
|
"cpu",
|
|
map[string]string{},
|
|
map[string]interface{}{
|
|
"time_idle": 42.0,
|
|
"host": "example.org",
|
|
},
|
|
time.Unix(0, 0),
|
|
),
|
|
},
|
|
expected: []byte(`
|
|
# HELP cpu_time_idle Telegraf collected metric
|
|
# TYPE cpu_time_idle untyped
|
|
cpu_time_idle{host="example.org"} 42
|
|
`),
|
|
},
|
|
{
|
|
name: "when strings as labels is false string fields are discarded",
|
|
output: &PrometheusClient{
|
|
Listen: ":0",
|
|
MetricVersion: 2,
|
|
CollectorsExclude: []string{"gocollector", "process"},
|
|
Path: "/metrics",
|
|
StringAsLabel: false,
|
|
Log: Logger,
|
|
},
|
|
metrics: []telegraf.Metric{
|
|
testutil.MustMetric(
|
|
"cpu",
|
|
map[string]string{},
|
|
map[string]interface{}{
|
|
"time_idle": 42.0,
|
|
"host": "example.org",
|
|
},
|
|
time.Unix(0, 0),
|
|
),
|
|
},
|
|
expected: []byte(`
|
|
# HELP cpu_time_idle Telegraf collected metric
|
|
# TYPE cpu_time_idle untyped
|
|
cpu_time_idle 42
|
|
`),
|
|
},
|
|
{
|
|
name: "untype prometheus metric",
|
|
output: &PrometheusClient{
|
|
Listen: ":0",
|
|
MetricVersion: 2,
|
|
CollectorsExclude: []string{"gocollector", "process"},
|
|
Path: "/metrics",
|
|
Log: Logger,
|
|
},
|
|
metrics: []telegraf.Metric{
|
|
testutil.MustMetric(
|
|
"prometheus",
|
|
map[string]string{
|
|
"host": "example.org",
|
|
},
|
|
map[string]interface{}{
|
|
"cpu_time_idle": 42.0,
|
|
},
|
|
time.Unix(0, 0),
|
|
),
|
|
},
|
|
expected: []byte(`
|
|
# HELP cpu_time_idle Telegraf collected metric
|
|
# TYPE cpu_time_idle untyped
|
|
cpu_time_idle{host="example.org"} 42
|
|
`),
|
|
},
|
|
{
|
|
name: "telegraf histogram",
|
|
output: &PrometheusClient{
|
|
Listen: ":0",
|
|
MetricVersion: 2,
|
|
CollectorsExclude: []string{"gocollector", "process"},
|
|
Path: "/metrics",
|
|
Log: Logger,
|
|
},
|
|
metrics: []telegraf.Metric{
|
|
testutil.MustMetric(
|
|
"cpu",
|
|
map[string]string{
|
|
"cpu": "cpu1",
|
|
},
|
|
map[string]interface{}{
|
|
"usage_idle_sum": 2000.0,
|
|
"usage_idle_count": 20.0,
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"cpu",
|
|
map[string]string{
|
|
"cpu": "cpu1",
|
|
"le": "0.0",
|
|
},
|
|
map[string]interface{}{
|
|
"usage_idle_bucket": 0.0,
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"cpu",
|
|
map[string]string{
|
|
"cpu": "cpu1",
|
|
"le": "50.0",
|
|
},
|
|
map[string]interface{}{
|
|
"usage_idle_bucket": 7.0,
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"cpu",
|
|
map[string]string{
|
|
"cpu": "cpu1",
|
|
"le": "100.0",
|
|
},
|
|
map[string]interface{}{
|
|
"usage_idle_bucket": 20.0,
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
testutil.MustMetric(
|
|
"cpu",
|
|
map[string]string{
|
|
"cpu": "cpu1",
|
|
"le": "+Inf",
|
|
},
|
|
map[string]interface{}{
|
|
"usage_idle_bucket": 20.0,
|
|
},
|
|
time.Unix(0, 0),
|
|
telegraf.Histogram,
|
|
),
|
|
},
|
|
expected: []byte(`
|
|
# HELP cpu_usage_idle Telegraf collected metric
|
|
# TYPE cpu_usage_idle histogram
|
|
cpu_usage_idle_bucket{cpu="cpu1",le="0"} 0
|
|
cpu_usage_idle_bucket{cpu="cpu1",le="50"} 7
|
|
cpu_usage_idle_bucket{cpu="cpu1",le="100"} 20
|
|
cpu_usage_idle_bucket{cpu="cpu1",le="+Inf"} 20
|
|
cpu_usage_idle_sum{cpu="cpu1"} 2000
|
|
cpu_usage_idle_count{cpu="cpu1"} 20
|
|
`),
|
|
},
|
|
}
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
err := tt.output.Init()
|
|
require.NoError(t, err)
|
|
|
|
err = tt.output.Connect()
|
|
require.NoError(t, err)
|
|
|
|
defer func() {
|
|
err := tt.output.Close()
|
|
require.NoError(t, err)
|
|
}()
|
|
|
|
err = tt.output.Write(tt.metrics)
|
|
require.NoError(t, err)
|
|
|
|
resp, err := http.Get(tt.output.URL())
|
|
require.NoError(t, err)
|
|
require.Equal(t, http.StatusOK, resp.StatusCode)
|
|
defer resp.Body.Close()
|
|
body, err := ioutil.ReadAll(resp.Body)
|
|
require.NoError(t, err)
|
|
|
|
require.Equal(t,
|
|
strings.TrimSpace(string(tt.expected)),
|
|
strings.TrimSpace(string(body)))
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestRoundTripMetricVersion2(t *testing.T) {
|
|
Logger := testutil.Logger{Name: "outputs.prometheus_client"}
|
|
tests := []struct {
|
|
name string
|
|
data []byte
|
|
}{
|
|
{
|
|
name: "untyped",
|
|
data: []byte(`
|
|
# HELP cpu_time_idle Telegraf collected metric
|
|
# TYPE cpu_time_idle untyped
|
|
cpu_time_idle{host="example.org"} 42
|
|
`),
|
|
},
|
|
{
|
|
name: "counter",
|
|
data: []byte(`
|
|
# HELP cpu_time_idle Telegraf collected metric
|
|
# TYPE cpu_time_idle counter
|
|
cpu_time_idle{host="example.org"} 42
|
|
`),
|
|
},
|
|
{
|
|
name: "gauge",
|
|
data: []byte(`
|
|
# HELP cpu_time_idle Telegraf collected metric
|
|
# TYPE cpu_time_idle gauge
|
|
cpu_time_idle{host="example.org"} 42
|
|
`),
|
|
},
|
|
{
|
|
name: "multi",
|
|
data: []byte(`
|
|
# HELP cpu_time_guest Telegraf collected metric
|
|
# TYPE cpu_time_guest gauge
|
|
cpu_time_guest{host="one.example.org"} 42
|
|
cpu_time_guest{host="two.example.org"} 42
|
|
# HELP cpu_time_idle Telegraf collected metric
|
|
# TYPE cpu_time_idle gauge
|
|
cpu_time_idle{host="one.example.org"} 42
|
|
cpu_time_idle{host="two.example.org"} 42
|
|
`),
|
|
},
|
|
{
|
|
name: "histogram",
|
|
data: []byte(`
|
|
# HELP http_request_duration_seconds Telegraf collected metric
|
|
# TYPE http_request_duration_seconds histogram
|
|
http_request_duration_seconds_bucket{le="0.05"} 24054
|
|
http_request_duration_seconds_bucket{le="0.1"} 33444
|
|
http_request_duration_seconds_bucket{le="0.2"} 100392
|
|
http_request_duration_seconds_bucket{le="0.5"} 129389
|
|
http_request_duration_seconds_bucket{le="1"} 133988
|
|
http_request_duration_seconds_bucket{le="+Inf"} 144320
|
|
http_request_duration_seconds_sum 53423
|
|
http_request_duration_seconds_count 144320
|
|
`),
|
|
},
|
|
{
|
|
name: "summary",
|
|
data: []byte(`
|
|
# HELP rpc_duration_seconds Telegraf collected metric
|
|
# TYPE rpc_duration_seconds summary
|
|
rpc_duration_seconds{quantile="0.01"} 3102
|
|
rpc_duration_seconds{quantile="0.05"} 3272
|
|
rpc_duration_seconds{quantile="0.5"} 4773
|
|
rpc_duration_seconds{quantile="0.9"} 9001
|
|
rpc_duration_seconds{quantile="0.99"} 76656
|
|
rpc_duration_seconds_sum 1.7560473e+07
|
|
rpc_duration_seconds_count 2693
|
|
`),
|
|
},
|
|
}
|
|
|
|
ts := httptest.NewServer(http.NotFoundHandler())
|
|
defer ts.Close()
|
|
|
|
url := fmt.Sprintf("http://%s", ts.Listener.Addr())
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
ts.Config.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write(tt.data)
|
|
})
|
|
|
|
input := &inputs.Prometheus{
|
|
URLs: []string{url},
|
|
URLTag: "",
|
|
MetricVersion: 2,
|
|
}
|
|
var acc testutil.Accumulator
|
|
err := input.Start(&acc)
|
|
require.NoError(t, err)
|
|
err = input.Gather(&acc)
|
|
require.NoError(t, err)
|
|
input.Stop()
|
|
|
|
metrics := acc.GetTelegrafMetrics()
|
|
|
|
output := &PrometheusClient{
|
|
Listen: "127.0.0.1:0",
|
|
Path: defaultPath,
|
|
MetricVersion: 2,
|
|
Log: Logger,
|
|
CollectorsExclude: []string{"gocollector", "process"},
|
|
}
|
|
err = output.Init()
|
|
require.NoError(t, err)
|
|
err = output.Connect()
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
err = output.Close()
|
|
require.NoError(t, err)
|
|
}()
|
|
err = output.Write(metrics)
|
|
require.NoError(t, err)
|
|
|
|
resp, err := http.Get(output.URL())
|
|
require.NoError(t, err)
|
|
|
|
actual, err := ioutil.ReadAll(resp.Body)
|
|
require.NoError(t, err)
|
|
|
|
require.Equal(t,
|
|
strings.TrimSpace(string(tt.data)),
|
|
strings.TrimSpace(string(actual)))
|
|
})
|
|
}
|
|
}
|