fix: e2e metrics name

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>

Author: kkk777-7

test/e2e/tests/bandwidth_limit.go

@@ -84,11 +84,11 @@ var BandwidthLimitTest = suite.ConformanceTest{
 
 			// Verify the bandwidth limit filter throttled the request.
 			// The stat_prefix "http_bandwidth_limiter" exposes the Prometheus counter
-			// envoy_http_bandwidth_limiter_request_enforced.
+			// envoy_http_bandwidth_limiter_http_bandwidth_limit_request_enforced.
 			if err := wait.PollUntilContextTimeout(t.Context(), 3*time.Second, time.Minute, true,
 				func(_ context.Context) (bool, error) {
 					v, err := prometheus.QueryPrometheus(suite.Client,
-						`sum(envoy_http_bandwidth_limiter_request_enforced)`)
+						`sum(envoy_http_bandwidth_limiter_http_bandwidth_limit_request_enforced)`)
 					if err != nil {
 						tlog.Logf(t, "failed to query Prometheus: %v", err)
 						return false, err
@@ -102,7 +102,7 @@ var BandwidthLimitTest = suite.ConformanceTest{
 					}
 					return false, nil
 				}); err != nil {
-				t.Errorf("envoy_http_bandwidth_limiter_request_enforced never became positive: %v", err)
+				t.Errorf("envoy_http_bandwidth_limiter_http_bandwidth_limit_request_enforced never became positive: %v", err)
 			}
 		})
 	},