traefik/pkg/metrics/influxdb_test.go

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package metrics
import (
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"context"
"fmt"
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"io"
"net/http"
"net/http/httptest"
"regexp"
"strconv"
"testing"
"time"
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"github.com/stretchr/testify/require"
"github.com/stvp/go-udp-testing"
ptypes "github.com/traefik/paerser/types"
"github.com/traefik/traefik/v2/pkg/types"
)
func TestInfluxDB(t *testing.T) {
udp.SetAddr(":8089")
// This is needed to make sure that UDP Listener listens for data a bit longer, otherwise it will quit after a millisecond
udp.Timeout = 5 * time.Second
influxDBClient = nil
influxDBRegistry := RegisterInfluxDB(context.Background(),
&types.InfluxDB{
Address: ":8089",
PushInterval: ptypes.Duration(time.Second),
AddEntryPointsLabels: true,
AddRoutersLabels: true,
AddServicesLabels: true,
AdditionalLabels: map[string]string{"tag1": "val1"},
})
defer StopInfluxDB()
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if !influxDBRegistry.IsEpEnabled() || !influxDBRegistry.IsRouterEnabled() || !influxDBRegistry.IsSvcEnabled() {
t.Fatalf("InfluxDBRegistry should return true for IsEnabled(), IsRouterEnabled() and IsSvcEnabled()")
}
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expectedServer := []string{
`(traefik\.config\.reload\.total,tag1=val1 count=1) [\d]{19}`,
`(traefik\.config\.reload\.total\.failure,tag1=val1 count=1) [\d]{19}`,
`(traefik\.config\.reload\.lastSuccessTimestamp,tag1=val1 value=1) [\d]{19}`,
`(traefik\.config\.reload\.lastFailureTimestamp,tag1=val1 value=1) [\d]{19}`,
}
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msgServer := udp.ReceiveString(t, func() {
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influxDBRegistry.ConfigReloadsCounter().Add(1)
influxDBRegistry.ConfigReloadsFailureCounter().Add(1)
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influxDBRegistry.LastConfigReloadSuccessGauge().Set(1)
influxDBRegistry.LastConfigReloadFailureGauge().Set(1)
})
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assertMessage(t, msgServer, expectedServer)
expectedTLS := []string{
`(traefik\.tls\.certs\.notAfterTimestamp,key=value,tag1=val1 value=1) [\d]{19}`,
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}
msgTLS := udp.ReceiveString(t, func() {
influxDBRegistry.TLSCertsNotAfterTimestampGauge().With("key", "value").Set(1)
})
assertMessage(t, msgTLS, expectedTLS)
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expectedEntrypoint := []string{
`(traefik\.entrypoint\.requests\.total,code=200,entrypoint=test,method=GET,tag1=val1 count=1) [\d]{19}`,
`(traefik\.entrypoint\.requests\.tls\.total,entrypoint=test,tag1=val1,tls_cipher=bar,tls_version=foo count=1) [\d]{19}`,
`(traefik\.entrypoint\.request\.duration(?:,code=[\d]{3})?,entrypoint=test,tag1=val1 p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`,
`(traefik\.entrypoint\.connections\.open,entrypoint=test,tag1=val1 value=1) [\d]{19}`,
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}
msgEntrypoint := udp.ReceiveString(t, func() {
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influxDBRegistry.EntryPointReqsCounter().With("entrypoint", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
influxDBRegistry.EntryPointReqsTLSCounter().With("entrypoint", "test", "tls_version", "foo", "tls_cipher", "bar").Add(1)
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influxDBRegistry.EntryPointReqDurationHistogram().With("entrypoint", "test").Observe(10000)
influxDBRegistry.EntryPointOpenConnsGauge().With("entrypoint", "test").Set(1)
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})
assertMessage(t, msgEntrypoint, expectedEntrypoint)
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expectedRouter := []string{
`(traefik\.router\.requests\.total,code=200,method=GET,router=demo,service=test,tag1=val1 count=1) [\d]{19}`,
`(traefik\.router\.requests\.total,code=404,method=GET,router=demo,service=test,tag1=val1 count=1) [\d]{19}`,
`(traefik\.router\.requests\.tls\.total,router=demo,service=test,tag1=val1,tls_cipher=bar,tls_version=foo count=1) [\d]{19}`,
`(traefik\.router\.request\.duration,code=200,router=demo,service=test,tag1=val1 p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`,
`(traefik\.router\.connections\.open,router=demo,service=test,tag1=val1 value=1) [\d]{19}`,
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}
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msgRouter := udp.ReceiveString(t, func() {
influxDBRegistry.RouterReqsCounter().With("router", "demo", "service", "test", "code", strconv.Itoa(http.StatusNotFound), "method", http.MethodGet).Add(1)
influxDBRegistry.RouterReqsCounter().With("router", "demo", "service", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
influxDBRegistry.RouterReqsTLSCounter().With("router", "demo", "service", "test", "tls_version", "foo", "tls_cipher", "bar").Add(1)
influxDBRegistry.RouterReqDurationHistogram().With("router", "demo", "service", "test", "code", strconv.Itoa(http.StatusOK)).Observe(10000)
influxDBRegistry.RouterOpenConnsGauge().With("router", "demo", "service", "test").Set(1)
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})
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assertMessage(t, msgRouter, expectedRouter)
expectedService := []string{
`(traefik\.service\.requests\.total,code=200,method=GET,service=test,tag1=val1 count=1) [\d]{19}`,
`(traefik\.service\.requests\.total,code=404,method=GET,service=test,tag1=val1 count=1) [\d]{19}`,
`(traefik\.service\.requests\.tls\.total,service=test,tag1=val1,tls_cipher=bar,tls_version=foo count=1) [\d]{19}`,
`(traefik\.service\.request\.duration,code=200,service=test,tag1=val1 p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`,
`(traefik\.service\.retries\.total(?:,code=[\d]{3},method=GET)?,service=test,tag1=val1 count=2) [\d]{19}`,
`(traefik\.service\.server\.up,service=test,tag1=val1,url=http://127.0.0.1 value=1) [\d]{19}`,
`(traefik\.service\.connections\.open,service=test,tag1=val1 value=1) [\d]{19}`,
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}
msgService := udp.ReceiveString(t, func() {
influxDBRegistry.ServiceReqsCounter().With("service", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
influxDBRegistry.ServiceReqsCounter().With("service", "test", "code", strconv.Itoa(http.StatusNotFound), "method", http.MethodGet).Add(1)
influxDBRegistry.ServiceReqsTLSCounter().With("service", "test", "tls_version", "foo", "tls_cipher", "bar").Add(1)
influxDBRegistry.ServiceReqDurationHistogram().With("service", "test", "code", strconv.Itoa(http.StatusOK)).Observe(10000)
influxDBRegistry.ServiceOpenConnsGauge().With("service", "test").Set(1)
influxDBRegistry.ServiceRetriesCounter().With("service", "test").Add(1)
influxDBRegistry.ServiceRetriesCounter().With("service", "test").Add(1)
influxDBRegistry.ServiceServerUpGauge().With("service", "test", "url", "http://127.0.0.1").Set(1)
})
assertMessage(t, msgService, expectedService)
}
func TestInfluxDBHTTP(t *testing.T) {
c := make(chan *string)
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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body, err := io.ReadAll(r.Body)
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require.NoError(t, err)
bodyStr := string(body)
c <- &bodyStr
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_, _ = fmt.Fprintln(w, "ok")
}))
defer ts.Close()
influxDBClient = nil
influxDBRegistry := RegisterInfluxDB(context.Background(),
&types.InfluxDB{
Address: ts.URL,
Protocol: "http",
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PushInterval: ptypes.Duration(10 * time.Millisecond),
Database: "test",
RetentionPolicy: "autogen",
AddEntryPointsLabels: true,
AddServicesLabels: true,
AddRoutersLabels: true,
})
defer StopInfluxDB()
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if !influxDBRegistry.IsEpEnabled() || !influxDBRegistry.IsRouterEnabled() || !influxDBRegistry.IsSvcEnabled() {
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t.Fatalf("InfluxDB registry must be epEnabled")
}
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expectedServer := []string{
`(traefik\.config\.reload\.total count=1) [\d]{19}`,
`(traefik\.config\.reload\.total\.failure count=1) [\d]{19}`,
`(traefik\.config\.reload\.lastSuccessTimestamp value=1) [\d]{19}`,
`(traefik\.config\.reload\.lastFailureTimestamp value=1) [\d]{19}`,
}
influxDBRegistry.ConfigReloadsCounter().Add(1)
influxDBRegistry.ConfigReloadsFailureCounter().Add(1)
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influxDBRegistry.LastConfigReloadSuccessGauge().Set(1)
influxDBRegistry.LastConfigReloadFailureGauge().Set(1)
msgServer := <-c
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assertMessage(t, *msgServer, expectedServer)
expectedTLS := []string{
`(traefik\.tls\.certs\.notAfterTimestamp,key=value value=1) [\d]{19}`,
}
influxDBRegistry.TLSCertsNotAfterTimestampGauge().With("key", "value").Set(1)
msgTLS := <-c
assertMessage(t, *msgTLS, expectedTLS)
expectedEntrypoint := []string{
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`(traefik\.entrypoint\.requests\.total,code=200,entrypoint=test,method=GET count=1) [\d]{19}`,
`(traefik\.entrypoint\.requests\.tls\.total,entrypoint=test,tls_cipher=bar,tls_version=foo count=1) [\d]{19}`,
`(traefik\.entrypoint\.request\.duration(?:,code=[\d]{3})?,entrypoint=test p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`,
`(traefik\.entrypoint\.connections\.open,entrypoint=test value=1) [\d]{19}`,
}
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influxDBRegistry.EntryPointReqsCounter().With("entrypoint", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
influxDBRegistry.EntryPointReqsTLSCounter().With("entrypoint", "test", "tls_version", "foo", "tls_cipher", "bar").Add(1)
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influxDBRegistry.EntryPointReqDurationHistogram().With("entrypoint", "test").Observe(10000)
influxDBRegistry.EntryPointOpenConnsGauge().With("entrypoint", "test").Set(1)
msgEntrypoint := <-c
assertMessage(t, *msgEntrypoint, expectedEntrypoint)
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expectedRouter := []string{
`(traefik\.router\.requests\.total,code=200,method=GET,router=demo,service=test count=1) [\d]{19}`,
`(traefik\.router\.requests\.total,code=404,method=GET,router=demo,service=test count=1) [\d]{19}`,
`(traefik\.router\.requests\.tls\.total,router=demo,service=test,tls_cipher=bar,tls_version=foo count=1) [\d]{19}`,
`(traefik\.router\.request\.duration,code=200,router=demo,service=test p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`,
`(traefik\.router\.connections\.open,router=demo,service=test value=1) [\d]{19}`,
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}
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influxDBRegistry.RouterReqsCounter().With("router", "demo", "service", "test", "code", strconv.Itoa(http.StatusNotFound), "method", http.MethodGet).Add(1)
influxDBRegistry.RouterReqsCounter().With("router", "demo", "service", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
influxDBRegistry.RouterReqsTLSCounter().With("router", "demo", "service", "test", "tls_version", "foo", "tls_cipher", "bar").Add(1)
influxDBRegistry.RouterReqDurationHistogram().With("router", "demo", "service", "test", "code", strconv.Itoa(http.StatusOK)).Observe(10000)
influxDBRegistry.RouterOpenConnsGauge().With("router", "demo", "service", "test").Set(1)
msgRouter := <-c
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assertMessage(t, *msgRouter, expectedRouter)
expectedService := []string{
`(traefik\.service\.requests\.total,code=200,method=GET,service=test count=1) [\d]{19}`,
`(traefik\.service\.requests\.total,code=404,method=GET,service=test count=1) [\d]{19}`,
`(traefik\.service\.requests\.tls\.total,service=test,tls_cipher=bar,tls_version=foo count=1) [\d]{19}`,
`(traefik\.service\.request\.duration,code=200,service=test p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`,
`(traefik\.service\.retries\.total(?:,code=[\d]{3},method=GET)?,service=test count=2) [\d]{19}`,
`(traefik\.service\.server\.up,service=test,url=http://127.0.0.1 value=1) [\d]{19}`,
`(traefik\.service\.connections\.open,service=test value=1) [\d]{19}`,
}
influxDBRegistry.ServiceReqsCounter().With("service", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
influxDBRegistry.ServiceReqsCounter().With("service", "test", "code", strconv.Itoa(http.StatusNotFound), "method", http.MethodGet).Add(1)
influxDBRegistry.ServiceReqsTLSCounter().With("service", "test", "tls_version", "foo", "tls_cipher", "bar").Add(1)
influxDBRegistry.ServiceReqDurationHistogram().With("service", "test", "code", strconv.Itoa(http.StatusOK)).Observe(10000)
influxDBRegistry.ServiceOpenConnsGauge().With("service", "test").Set(1)
influxDBRegistry.ServiceRetriesCounter().With("service", "test").Add(1)
influxDBRegistry.ServiceRetriesCounter().With("service", "test").Add(1)
influxDBRegistry.ServiceServerUpGauge().With("service", "test", "url", "http://127.0.0.1").Set(1)
msgService := <-c
assertMessage(t, *msgService, expectedService)
}
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func assertMessage(t *testing.T, msg string, patterns []string) {
t.Helper()
for _, pattern := range patterns {
re := regexp.MustCompile(pattern)
match := re.FindStringSubmatch(msg)
if len(match) != 2 {
t.Errorf("Got %q %v, want %q", msg, match, pattern)
}
}
}