457 lines
20 KiB
Go
457 lines
20 KiB
Go
package metrics
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import (
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"compress/gzip"
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"context"
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"encoding/json"
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"io"
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"net/http"
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"net/http/httptest"
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"net/url"
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"strconv"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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ptypes "github.com/traefik/paerser/types"
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"github.com/traefik/traefik/v2/pkg/types"
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"github.com/traefik/traefik/v2/pkg/version"
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"go.opentelemetry.io/collector/pdata/pmetric/pmetricotlp"
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"go.opentelemetry.io/otel/attribute"
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)
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func TestOpenTelemetry_labels(t *testing.T) {
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tests := []struct {
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desc string
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values otelLabelNamesValues
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with []string
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expect []attribute.KeyValue
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}{
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{
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desc: "with no starting value",
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values: otelLabelNamesValues{},
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expect: []attribute.KeyValue{},
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},
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{
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desc: "with one starting value",
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values: otelLabelNamesValues{"foo"},
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expect: []attribute.KeyValue{},
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},
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{
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desc: "with two starting value",
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values: otelLabelNamesValues{"foo", "bar"},
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expect: []attribute.KeyValue{attribute.String("foo", "bar")},
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},
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{
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desc: "with no starting value, and with one other value",
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values: otelLabelNamesValues{},
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with: []string{"baz"},
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expect: []attribute.KeyValue{attribute.String("baz", "unknown")},
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},
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{
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desc: "with no starting value, and with two other value",
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values: otelLabelNamesValues{},
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with: []string{"baz", "buz"},
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expect: []attribute.KeyValue{attribute.String("baz", "buz")},
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},
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{
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desc: "with one starting value, and with one other value",
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values: otelLabelNamesValues{"foo"},
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with: []string{"baz"},
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expect: []attribute.KeyValue{attribute.String("foo", "baz")},
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},
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{
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desc: "with one starting value, and with two other value",
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values: otelLabelNamesValues{"foo"},
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with: []string{"baz", "buz"},
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expect: []attribute.KeyValue{attribute.String("foo", "baz")},
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},
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{
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desc: "with two starting value, and with one other value",
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values: otelLabelNamesValues{"foo", "bar"},
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with: []string{"baz"},
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expect: []attribute.KeyValue{
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attribute.String("foo", "bar"),
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attribute.String("baz", "unknown"),
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},
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},
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{
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desc: "with two starting value, and with two other value",
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values: otelLabelNamesValues{"foo", "bar"},
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with: []string{"baz", "buz"},
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expect: []attribute.KeyValue{
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attribute.String("foo", "bar"),
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attribute.String("baz", "buz"),
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},
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},
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}
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for _, test := range tests {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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assert.Equal(t, test.expect, test.values.With(test.with...).ToLabels())
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})
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}
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}
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func TestOpenTelemetry_GaugeCollectorAdd(t *testing.T) {
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tests := []struct {
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desc string
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gc *gaugeCollector
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delta float64
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name string
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attributes otelLabelNamesValues
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expect map[string]map[string]gaugeValue
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}{
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{
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desc: "empty collector",
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gc: newOpenTelemetryGaugeCollector(),
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delta: 1,
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name: "foo",
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expect: map[string]map[string]gaugeValue{
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"foo": {"": {value: 1}},
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},
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},
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{
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desc: "initialized collector",
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gc: &gaugeCollector{
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values: map[string]map[string]gaugeValue{
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"foo": {"": {value: 1}},
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},
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},
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delta: 1,
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name: "foo",
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expect: map[string]map[string]gaugeValue{
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"foo": {"": {value: 2}},
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},
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},
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{
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desc: "initialized collector, values with label (only the last one counts)",
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gc: &gaugeCollector{
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values: map[string]map[string]gaugeValue{
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"foo": {
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"bar": {
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attributes: otelLabelNamesValues{"bar"},
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value: 1,
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},
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},
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},
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},
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delta: 1,
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name: "foo",
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expect: map[string]map[string]gaugeValue{
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"foo": {
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"": {
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value: 1,
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},
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"bar": {
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attributes: otelLabelNamesValues{"bar"},
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value: 1,
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},
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},
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},
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},
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{
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desc: "initialized collector, values with label on set",
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gc: &gaugeCollector{
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values: map[string]map[string]gaugeValue{
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"foo": {"bar": {value: 1}},
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},
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},
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delta: 1,
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name: "foo",
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attributes: otelLabelNamesValues{"baz"},
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expect: map[string]map[string]gaugeValue{
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"foo": {
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"bar": {
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value: 1,
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},
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"baz": {
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value: 1,
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attributes: otelLabelNamesValues{"baz"},
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},
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},
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},
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},
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}
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for _, test := range tests {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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test.gc.add(test.name, test.delta, test.attributes)
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assert.Equal(t, test.expect, test.gc.values)
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})
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}
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}
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func TestOpenTelemetry_GaugeCollectorSet(t *testing.T) {
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tests := []struct {
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desc string
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gc *gaugeCollector
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value float64
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name string
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attributes otelLabelNamesValues
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expect map[string]map[string]gaugeValue
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}{
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{
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desc: "empty collector",
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gc: newOpenTelemetryGaugeCollector(),
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value: 1,
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name: "foo",
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expect: map[string]map[string]gaugeValue{
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"foo": {"": {value: 1}},
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},
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},
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{
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desc: "initialized collector",
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gc: &gaugeCollector{
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values: map[string]map[string]gaugeValue{
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"foo": {"": {value: 1}},
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},
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},
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value: 1,
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name: "foo",
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expect: map[string]map[string]gaugeValue{
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"foo": {"": {value: 1}},
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},
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},
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{
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desc: "initialized collector, values with label",
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gc: &gaugeCollector{
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values: map[string]map[string]gaugeValue{
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"foo": {
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"bar": {
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attributes: otelLabelNamesValues{"bar"},
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value: 1,
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},
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},
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},
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},
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value: 1,
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name: "foo",
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expect: map[string]map[string]gaugeValue{
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"foo": {
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"": {
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value: 1,
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},
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"bar": {
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attributes: otelLabelNamesValues{"bar"},
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value: 1,
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},
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},
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},
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},
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{
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desc: "initialized collector, values with label on set",
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gc: &gaugeCollector{
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values: map[string]map[string]gaugeValue{
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"foo": {"": {value: 1}},
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},
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},
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value: 1,
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name: "foo",
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attributes: otelLabelNamesValues{"bar"},
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expect: map[string]map[string]gaugeValue{
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"foo": {
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"": {
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value: 1,
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},
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"bar": {
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value: 1,
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attributes: otelLabelNamesValues{"bar"},
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},
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},
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},
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},
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}
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for _, test := range tests {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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test.gc.set(test.name, test.value, test.attributes)
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assert.Equal(t, test.expect, test.gc.values)
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})
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}
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}
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func TestOpenTelemetry(t *testing.T) {
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t.Parallel()
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c := make(chan *string)
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defer close(c)
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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gzr, err := gzip.NewReader(r.Body)
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require.NoError(t, err)
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body, err := io.ReadAll(gzr)
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require.NoError(t, err)
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req := pmetricotlp.NewExportRequest()
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err = req.UnmarshalProto(body)
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require.NoError(t, err)
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marshalledReq, err := json.Marshal(req)
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require.NoError(t, err)
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bodyStr := string(marshalledReq)
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c <- &bodyStr
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w.WriteHeader(http.StatusOK)
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}))
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defer ts.Close()
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sURL, err := url.Parse(ts.URL)
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require.NoError(t, err)
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var cfg types.OpenTelemetry
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(&cfg).SetDefaults()
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cfg.AddRoutersLabels = true
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cfg.Address = sURL.Host
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cfg.Insecure = true
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cfg.PushInterval = ptypes.Duration(10 * time.Millisecond)
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registry := RegisterOpenTelemetry(context.Background(), &cfg)
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require.NotNil(t, registry)
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if !registry.IsEpEnabled() || !registry.IsRouterEnabled() || !registry.IsSvcEnabled() {
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t.Fatalf("registry should return true for IsEnabled(), IsRouterEnabled() and IsSvcEnabled()")
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}
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expected := []string{
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`({"key":"service.name","value":{"stringValue":"traefik"}})`,
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`({"key":"service.version","value":{"stringValue":"` + version.Version + `"}})`,
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}
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msgMisc := <-c
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assertMessage(t, *msgMisc, expected)
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// TODO: the len of startUnixNano is no supposed to be 20, it should be 19
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expected = append(expected,
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`({"name":"traefik_config_reloads_total","description":"Config reloads","unit":"1","sum":{"dataPoints":\[{"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1}\],"aggregationTemporality":2,"isMonotonic":true}})`,
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`({"name":"traefik_config_reloads_failure_total","description":"Config reload failures","unit":"1","sum":{"dataPoints":\[{"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1}\],"aggregationTemporality":2,"isMonotonic":true}})`,
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`({"name":"traefik_config_last_reload_success","description":"Last config reload success","unit":"ms","gauge":{"dataPoints":\[{"startTimeUnixNano":"[\d]{20}","timeUnixNano":"[\d]{19}","asDouble":1}\]}})`,
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`({"name":"traefik_config_last_reload_failure","description":"Last config reload failure","unit":"ms","gauge":{"dataPoints":\[{"startTimeUnixNano":"[\d]{20}","timeUnixNano":"[\d]{19}","asDouble":1}\]}})`,
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)
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registry.ConfigReloadsCounter().Add(1)
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registry.ConfigReloadsFailureCounter().Add(1)
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registry.LastConfigReloadSuccessGauge().Set(1)
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registry.LastConfigReloadFailureGauge().Set(1)
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msgServer := <-c
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assertMessage(t, *msgServer, expected)
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expected = append(expected,
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`({"name":"traefik_tls_certs_not_after","description":"Certificate expiration timestamp","unit":"ms","gauge":{"dataPoints":\[{"attributes":\[{"key":"key","value":{"stringValue":"value"}}\],"startTimeUnixNano":"[\d]{20}","timeUnixNano":"[\d]{19}","asDouble":1}\]}})`,
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)
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registry.TLSCertsNotAfterTimestampGauge().With("key", "value").Set(1)
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msgTLS := <-c
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assertMessage(t, *msgTLS, expected)
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expected = append(expected,
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`({"name":"traefik_entrypoint_requests_total","description":"How many HTTP requests processed on an entrypoint, partitioned by status code, protocol, and method.","unit":"1","sum":{"dataPoints":\[{"attributes":\[{"key":"code","value":{"stringValue":"200"}},{"key":"entrypoint","value":{"stringValue":"test1"}},{"key":"method","value":{"stringValue":"GET"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1}\],"aggregationTemporality":2,"isMonotonic":true}})`,
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`({"name":"traefik_entrypoint_requests_tls_total","description":"How many HTTP requests with TLS processed on an entrypoint, partitioned by TLS Version and TLS cipher Used.","unit":"1","sum":{"dataPoints":\[{"attributes":\[{"key":"entrypoint","value":{"stringValue":"test2"}},{"key":"tls_cipher","value":{"stringValue":"bar"}},{"key":"tls_version","value":{"stringValue":"foo"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1}\],"aggregationTemporality":2,"isMonotonic":true}})`,
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`({"name":"traefik_entrypoint_request_duration_seconds","description":"How long it took to process the request on an entrypoint, partitioned by status code, protocol, and method.","unit":"ms","histogram":{"dataPoints":\[{"attributes":\[{"key":"entrypoint","value":{"stringValue":"test3"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","count":"1","sum":10000,"bucketCounts":\["0","0","0","0","0","0","0","0","0","0","0","1"\],"explicitBounds":\[0.005,0.01,0.025,0.05,0.1,0.25,0.5,1,2.5,5,10\],"min":10000,"max":10000}\],"aggregationTemporality":2}})`,
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`({"name":"traefik_entrypoint_open_connections","description":"How many open connections exist on an entrypoint, partitioned by method and protocol.","unit":"1","gauge":{"dataPoints":\[{"attributes":\[{"key":"entrypoint","value":{"stringValue":"test4"}}\],"startTimeUnixNano":"[\d]{20}","timeUnixNano":"[\d]{19}","asDouble":1}\]}})`,
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)
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registry.EntryPointReqsCounter().With("entrypoint", "test1", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
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registry.EntryPointReqsTLSCounter().With("entrypoint", "test2", "tls_version", "foo", "tls_cipher", "bar").Add(1)
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registry.EntryPointReqDurationHistogram().With("entrypoint", "test3").Observe(10000)
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registry.EntryPointOpenConnsGauge().With("entrypoint", "test4").Set(1)
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msgEntrypoint := <-c
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assertMessage(t, *msgEntrypoint, expected)
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expected = append(expected,
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`({"name":"traefik_router_requests_total","description":"How many HTTP requests are processed on a router, partitioned by service, status code, protocol, and method.","unit":"1","sum":{"dataPoints":\[{"attributes":\[{"key":"code","value":{"stringValue":"(?:200|404)"}},{"key":"method","value":{"stringValue":"GET"}},{"key":"router","value":{"stringValue":"RouterReqsCounter"}},{"key":"service","value":{"stringValue":"test"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1},{"attributes":\[{"key":"code","value":{"stringValue":"(?:200|404)"}},{"key":"method","value":{"stringValue":"GET"}},{"key":"router","value":{"stringValue":"RouterReqsCounter"}},{"key":"service","value":{"stringValue":"test"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1}\],"aggregationTemporality":2,"isMonotonic":true}})`,
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`({"name":"traefik_router_requests_tls_total","description":"How many HTTP requests with TLS are processed on a router, partitioned by service, TLS Version, and TLS cipher Used.","unit":"1","sum":{"dataPoints":\[{"attributes":\[{"key":"router","value":{"stringValue":"demo"}},{"key":"service","value":{"stringValue":"test"}},{"key":"tls_cipher","value":{"stringValue":"bar"}},{"key":"tls_version","value":{"stringValue":"foo"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1}\],"aggregationTemporality":2,"isMonotonic":true}})`,
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`({"name":"traefik_router_request_duration_seconds","description":"How long it took to process the request on a router, partitioned by service, status code, protocol, and method.","unit":"ms","histogram":{"dataPoints":\[{"attributes":\[{"key":"code","value":{"stringValue":"200"}},{"key":"router","value":{"stringValue":"demo"}},{"key":"service","value":{"stringValue":"test"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","count":"1","sum":10000,"bucketCounts":\["0","0","0","0","0","0","0","0","0","0","0","1"\],"explicitBounds":\[0.005,0.01,0.025,0.05,0.1,0.25,0.5,1,2.5,5,10\],"min":10000,"max":10000}\],"aggregationTemporality":2}})`,
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`({"name":"traefik_router_open_connections","description":"How many open connections exist on a router, partitioned by service, method, and protocol.","unit":"1","gauge":{"dataPoints":\[{"attributes":\[{"key":"router","value":{"stringValue":"demo"}},{"key":"service","value":{"stringValue":"test"}}\],"startTimeUnixNano":"[\d]{20}","timeUnixNano":"[\d]{19}","asDouble":1}\]}})`,
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)
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registry.RouterReqsCounter().With("router", "RouterReqsCounter", "service", "test", "code", strconv.Itoa(http.StatusNotFound), "method", http.MethodGet).Add(1)
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registry.RouterReqsCounter().With("router", "RouterReqsCounter", "service", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
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registry.RouterReqsTLSCounter().With("router", "demo", "service", "test", "tls_version", "foo", "tls_cipher", "bar").Add(1)
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registry.RouterReqDurationHistogram().With("router", "demo", "service", "test", "code", strconv.Itoa(http.StatusOK)).Observe(10000)
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registry.RouterOpenConnsGauge().With("router", "demo", "service", "test").Set(1)
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msgRouter := <-c
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assertMessage(t, *msgRouter, expected)
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expected = append(expected,
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`({"name":"traefik_service_requests_total","description":"How many HTTP requests processed on a service, partitioned by status code, protocol, and method.","unit":"1","sum":{"dataPoints":\[{"attributes":\[{"key":"code","value":{"stringValue":"(?:200|404)"}},{"key":"method","value":{"stringValue":"GET"}},{"key":"service","value":{"stringValue":"ServiceReqsCounter"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1},{"attributes":\[{"key":"code","value":{"stringValue":"(?:200|404)"}},{"key":"method","value":{"stringValue":"GET"}},{"key":"service","value":{"stringValue":"ServiceReqsCounter"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1}\],"aggregationTemporality":2,"isMonotonic":true}})`,
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`({"name":"traefik_service_requests_tls_total","description":"How many HTTP requests with TLS processed on a service, partitioned by TLS version and TLS cipher.","unit":"1","sum":{"dataPoints":\[{"attributes":\[{"key":"service","value":{"stringValue":"test"}},{"key":"tls_cipher","value":{"stringValue":"bar"}},{"key":"tls_version","value":{"stringValue":"foo"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1}\],"aggregationTemporality":2,"isMonotonic":true}})`,
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`({"name":"traefik_service_request_duration_seconds","description":"How long it took to process the request on a service, partitioned by status code, protocol, and method.","unit":"ms","histogram":{"dataPoints":\[{"attributes":\[{"key":"code","value":{"stringValue":"200"}},{"key":"service","value":{"stringValue":"test"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","count":"1","sum":10000,"bucketCounts":\["0","0","0","0","0","0","0","0","0","0","0","1"\],"explicitBounds":\[0.005,0.01,0.025,0.05,0.1,0.25,0.5,1,2.5,5,10\],"min":10000,"max":10000}\],"aggregationTemporality":2}})`,
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`({"name":"traefik_service_server_up","description":"service server is up, described by gauge value of 0 or 1.","unit":"1","gauge":{"dataPoints":\[{"attributes":\[{"key":"service","value":{"stringValue":"test"}},{"key":"url","value":{"stringValue":"http://127.0.0.1"}}\],"startTimeUnixNano":"[\d]{20}","timeUnixNano":"[\d]{19}","asDouble":1}\]}})`,
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|
)
|
|
|
|
registry.ServiceReqsCounter().With("service", "ServiceReqsCounter", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
|
|
registry.ServiceReqsCounter().With("service", "ServiceReqsCounter", "code", strconv.Itoa(http.StatusNotFound), "method", http.MethodGet).Add(1)
|
|
registry.ServiceReqsTLSCounter().With("service", "test", "tls_version", "foo", "tls_cipher", "bar").Add(1)
|
|
registry.ServiceReqDurationHistogram().With("service", "test", "code", strconv.Itoa(http.StatusOK)).Observe(10000)
|
|
registry.ServiceServerUpGauge().With("service", "test", "url", "http://127.0.0.1").Set(1)
|
|
msgService := <-c
|
|
|
|
assertMessage(t, *msgService, expected)
|
|
|
|
expected = append(expected,
|
|
`({"attributes":\[{"key":"service","value":{"stringValue":"foobar"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":1})`,
|
|
`({"attributes":\[{"key":"service","value":{"stringValue":"test"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","asDouble":2})`,
|
|
)
|
|
|
|
registry.ServiceRetriesCounter().With("service", "test").Add(1)
|
|
registry.ServiceRetriesCounter().With("service", "test").Add(1)
|
|
registry.ServiceRetriesCounter().With("service", "foobar").Add(1)
|
|
msgServiceRetries := <-c
|
|
|
|
assertMessage(t, *msgServiceRetries, expected)
|
|
|
|
expected = append(expected,
|
|
`({"attributes":\[{"key":"service","value":{"stringValue":"test"}}\],"startTimeUnixNano":"[\d]{20}","timeUnixNano":"[\d]{19}","asDouble":3})`,
|
|
`({"attributes":\[{"key":"service","value":{"stringValue":"foobar"}}\],"startTimeUnixNano":"[\d]{20}","timeUnixNano":"[\d]{19}","asDouble":1})`,
|
|
)
|
|
|
|
registry.ServiceOpenConnsGauge().With("service", "test").Set(1)
|
|
registry.ServiceOpenConnsGauge().With("service", "test").Add(1)
|
|
registry.ServiceOpenConnsGauge().With("service", "test").Add(1)
|
|
registry.ServiceOpenConnsGauge().With("service", "foobar").Add(1)
|
|
msgServiceOpenConns := <-c
|
|
|
|
assertMessage(t, *msgServiceOpenConns, expected)
|
|
|
|
// We cannot rely on the previous expected pattern,
|
|
// because this pattern was for matching only one dataPoint in the histogram,
|
|
// and as soon as the EntryPointReqDurationHistogram.Observe is called,
|
|
// it adds a new dataPoint to the histogram.
|
|
expectedEntryPointReqDuration := []string{
|
|
`({"attributes":\[{"key":"entrypoint","value":{"stringValue":"myEntrypoint"}}\],"startTimeUnixNano":"[\d]{19}","timeUnixNano":"[\d]{19}","count":"2","sum":30000,"bucketCounts":\["0","0","0","0","0","0","0","0","0","0","0","2"\],"explicitBounds":\[0.005,0.01,0.025,0.05,0.1,0.25,0.5,1,2.5,5,10\],"min":10000,"max":20000})`,
|
|
}
|
|
|
|
registry.EntryPointReqDurationHistogram().With("entrypoint", "myEntrypoint").Observe(10000)
|
|
registry.EntryPointReqDurationHistogram().With("entrypoint", "myEntrypoint").Observe(20000)
|
|
msgEntryPointReqDurationHistogram := <-c
|
|
|
|
assertMessage(t, *msgEntryPointReqDurationHistogram, expectedEntryPointReqDuration)
|
|
|
|
// We need to unlock the HTTP Server for the last export call when stopping
|
|
// OpenTelemetry.
|
|
go func() {
|
|
<-c
|
|
}()
|
|
StopOpenTelemetry()
|
|
}
|