package metrics import ( "context" "fmt" "io/ioutil" "net/http" "net/http/httptest" "regexp" "strconv" "testing" "time" "github.com/containous/traefik/pkg/types" "github.com/stvp/go-udp-testing" ) 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 influxDBRegistry := RegisterInfluxDB(context.Background(), &types.InfluxDB{Address: ":8089", PushInterval: "1s"}) defer StopInfluxDB() if !influxDBRegistry.IsEnabled() { t.Fatalf("InfluxDB registry must be enabled") } expectedBackend := []string{ `(traefik\.backend\.requests\.total,backend=test,code=200,method=GET count=1) [\d]{19}`, `(traefik\.backend\.requests\.total,backend=test,code=404,method=GET count=1) [\d]{19}`, `(traefik\.backend\.request\.duration,backend=test,code=200 p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`, `(traefik\.backend\.retries\.total(?:,code=[\d]{3},method=GET)?,backend=test count=2) [\d]{19}`, `(traefik\.config\.reload\.total(?:[a-z=0-9A-Z,]+)? count=1) [\d]{19}`, `(traefik\.config\.reload\.total\.failure(?:[a-z=0-9A-Z,]+)? count=1) [\d]{19}`, `(traefik\.backend\.server\.up,backend=test(?:[a-z=0-9A-Z,]+)?,url=http://127.0.0.1 value=1) [\d]{19}`, } msgBackend := udp.ReceiveString(t, func() { influxDBRegistry.BackendReqsCounter().With("backend", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1) influxDBRegistry.BackendReqsCounter().With("backend", "test", "code", strconv.Itoa(http.StatusNotFound), "method", http.MethodGet).Add(1) influxDBRegistry.BackendRetriesCounter().With("backend", "test").Add(1) influxDBRegistry.BackendRetriesCounter().With("backend", "test").Add(1) influxDBRegistry.BackendReqDurationHistogram().With("backend", "test", "code", strconv.Itoa(http.StatusOK)).Observe(10000) influxDBRegistry.ConfigReloadsCounter().Add(1) influxDBRegistry.ConfigReloadsFailureCounter().Add(1) influxDBRegistry.BackendServerUpGauge().With("backend", "test", "url", "http://127.0.0.1").Set(1) }) assertMessage(t, msgBackend, expectedBackend) expectedEntrypoint := []string{ `(traefik\.entrypoint\.requests\.total,entrypoint=test(?:[a-z=0-9A-Z,:/.]+)? count=1) [\d]{19}`, `(traefik\.entrypoint\.request\.duration(?:,code=[\d]{3})?,entrypoint=test(?:[a-z=0-9A-Z,:/.]+)? p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`, `(traefik\.entrypoint\.connections\.open,entrypoint=test value=1) [\d]{19}`, } msgEntrypoint := udp.ReceiveString(t, func() { influxDBRegistry.EntrypointReqsCounter().With("entrypoint", "test").Add(1) influxDBRegistry.EntrypointReqDurationHistogram().With("entrypoint", "test").Observe(10000) influxDBRegistry.EntrypointOpenConnsGauge().With("entrypoint", "test").Set(1) }) assertMessage(t, msgEntrypoint, expectedEntrypoint) } func TestInfluxDBHTTP(t *testing.T) { c := make(chan *string) ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { body, err := ioutil.ReadAll(r.Body) if err != nil { http.Error(w, "can't read body "+err.Error(), http.StatusBadRequest) return } bodyStr := string(body) c <- &bodyStr fmt.Fprintln(w, "ok") })) defer ts.Close() influxDBRegistry := RegisterInfluxDB(context.Background(), &types.InfluxDB{Address: ts.URL, Protocol: "http", PushInterval: "1s", Database: "test", RetentionPolicy: "autogen"}) defer StopInfluxDB() if !influxDBRegistry.IsEnabled() { t.Fatalf("InfluxDB registry must be enabled") } expectedBackend := []string{ `(traefik\.backend\.requests\.total,backend=test,code=200,method=GET count=1) [\d]{19}`, `(traefik\.backend\.requests\.total,backend=test,code=404,method=GET count=1) [\d]{19}`, `(traefik\.backend\.request\.duration,backend=test,code=200 p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`, `(traefik\.backend\.retries\.total(?:,code=[\d]{3},method=GET)?,backend=test count=2) [\d]{19}`, `(traefik\.config\.reload\.total(?:[a-z=0-9A-Z,]+)? count=1) [\d]{19}`, `(traefik\.config\.reload\.total\.failure(?:[a-z=0-9A-Z,]+)? count=1) [\d]{19}`, `(traefik\.backend\.server\.up,backend=test(?:[a-z=0-9A-Z,]+)?,url=http://127.0.0.1 value=1) [\d]{19}`, } influxDBRegistry.BackendReqsCounter().With("backend", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1) influxDBRegistry.BackendReqsCounter().With("backend", "test", "code", strconv.Itoa(http.StatusNotFound), "method", http.MethodGet).Add(1) influxDBRegistry.BackendRetriesCounter().With("backend", "test").Add(1) influxDBRegistry.BackendRetriesCounter().With("backend", "test").Add(1) influxDBRegistry.BackendReqDurationHistogram().With("backend", "test", "code", strconv.Itoa(http.StatusOK)).Observe(10000) influxDBRegistry.ConfigReloadsCounter().Add(1) influxDBRegistry.ConfigReloadsFailureCounter().Add(1) influxDBRegistry.BackendServerUpGauge().With("backend", "test", "url", "http://127.0.0.1").Set(1) msgBackend := <-c assertMessage(t, *msgBackend, expectedBackend) expectedEntrypoint := []string{ `(traefik\.entrypoint\.requests\.total,entrypoint=test(?:[a-z=0-9A-Z,:/.]+)? count=1) [\d]{19}`, `(traefik\.entrypoint\.request\.duration(?:,code=[\d]{3})?,entrypoint=test(?:[a-z=0-9A-Z,:/.]+)? p50=10000,p90=10000,p95=10000,p99=10000) [\d]{19}`, `(traefik\.entrypoint\.connections\.open,entrypoint=test value=1) [\d]{19}`, } influxDBRegistry.EntrypointReqsCounter().With("entrypoint", "test").Add(1) influxDBRegistry.EntrypointReqDurationHistogram().With("entrypoint", "test").Observe(10000) influxDBRegistry.EntrypointOpenConnsGauge().With("entrypoint", "test").Set(1) msgEntrypoint := <-c assertMessage(t, *msgEntrypoint, expectedEntrypoint) } 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) } } }