fix lrs examples verify.sh (envoyproxy#17889)

Signed-off-by: yy <[email protected]>

examples/load-reporting-service/docker-compose.yaml

@@ -7,6 +7,7 @@ services:
       dockerfile: Dockerfile-envoy
     ports:
     - "80-81:80"
+    - "8081:8081"
 
   http_service:
     build:

examples/load-reporting-service/verify.sh

@@ -2,6 +2,7 @@
 
 export NAME=load-reporting
 export UPARGS="--scale http_service=2"
+export DELAY=10
 
 # shellcheck source=examples/verify-common.sh
 . "$(dirname "${BASH_SOURCE[0]}")/../verify-common.sh"
@@ -17,4 +18,12 @@ docker-compose logs http_service | grep http_service_2 | grep HTTP | grep 200
 run_log "Check logs: lrs_server"
 docker-compose logs lrs_server | grep "up and running"
 
+run_log "Check logs: envoy is connect to lrs_server"
+responds_with \
+    upstream_rq_200 \
+    "http://localhost:8081/stats?filter=load_reporting_cluster"
+
+run_log "Check logs: lrs_server works normally"
+docker-compose logs lrs_server | grep "Got stats from cluster"
+
 # TODO(phlax): add some test/docs for interacting with load reporting server