feat: Support customizing gateway concurrency (#168)

Author: CH3CHO

all-in-one/scripts/start-gateway.sh

@@ -27,6 +27,7 @@ else
 fi
 
 /usr/local/bin/higress-proxy-start.sh proxy router \
+    --concurrency=${GATEWAY_CONCURRENCY:-16} \
     --domain=higress-system.svc.cluster.local \
     --proxyLogLevel=${GATEWAY_LOG_LEVEL:-warning} \
     --proxyComponentLogLevel=${GATEWAY_COMPONENT_LOG_LEVEL:-misc:error} \

compose/docker-compose.yml

@@ -177,6 +177,8 @@ services:
     command:
       - proxy
       - router
+      - --concurrency
+      - "16"
       - --domain
       - higress-system.svc.cluster.local
       - --proxyLogLevel=warning