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Add WebSocket and proxy lifecycle metrics

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This commit is contained in:
Marc Schäfer
2025-10-10 19:15:33 +02:00
parent e04c654292
commit d21f4951e9
14 changed files with 323 additions and 96 deletions
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37
internal/telemetry/telemetry_smoke_test.go
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@@ -13,13 +13,15 @@ import (
// Smoke test that /metrics contains at least one newt_* metric when Prom exporter is enabled.
func TestMetricsSmoke(t *testing.T) {
ctx := context.Background()
resetMetricsForTest()
t.Setenv("NEWT_METRICS_INCLUDE_SITE_LABELS", "true")
cfg := Config{
ServiceName: "newt",
PromEnabled: true,
OTLPEnabled: false,
AdminAddr: "127.0.0.1:0",
BuildVersion: "test",
BuildCommit: "deadbeef",
ServiceName: "newt",
PromEnabled: true,
OTLPEnabled: false,
AdminAddr: "127.0.0.1:0",
BuildVersion: "test",
BuildCommit: "deadbeef",
MetricExportInterval: 5 * time.Second,
}
tel, err := Init(ctx, cfg)
@@ -37,18 +39,27 @@ func TestMetricsSmoke(t *testing.T) {
// Record a simple metric and then fetch /metrics
IncConnAttempt(ctx, "websocket", "success")
if tel.MeterProvider != nil {
_ = tel.MeterProvider.ForceFlush(ctx)
}
// Give the exporter a tick to collect
time.Sleep(100 * time.Millisecond)
resp, err := http.Get(ts.URL)
if err != nil {
t.Fatalf("GET /metrics failed: %v", err)
var body string
for i := 0; i < 5; i++ {
resp, err := http.Get(ts.URL)
if err != nil {
t.Fatalf("GET /metrics failed: %v", err)
}
b, _ := io.ReadAll(resp.Body)
_ = resp.Body.Close()
body = string(b)
if strings.Contains(body, "newt_connection_attempts_total") {
break
}
time.Sleep(100 * time.Millisecond)
}
defer resp.Body.Close()
b, _ := io.ReadAll(resp.Body)
body := string(b)
if !strings.Contains(body, "newt_connection_attempts_total") {
t.Fatalf("expected newt_connection_attempts_total in metrics, got:\n%s", body)
}
}