[Feat.] Enable grafana to show metrics (#4718)

Co-authored-by: zhaochenyang20 <zhaochen20@outlook.com>

examples/monitoring/docker-compose.yaml

@@ -1,16 +1,28 @@
+version: '3'
 services:
   prometheus:
     image: prom/prometheus:latest
+    container_name: prometheus
     network_mode: host
-    ports:
-      - "9090:9090"
     volumes:
-      - ${PWD}/prometheus.yaml:/etc/prometheus/prometheus.yml
+      - ./prometheus.yaml:/etc/prometheus/prometheus.yml
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
 
   grafana:
     image: grafana/grafana:latest
+    container_name: grafana
     network_mode: host
+    volumes:
+      - ./grafana/datasources:/etc/grafana/provisioning/datasources
+      - ./grafana/dashboards/config:/etc/grafana/provisioning/dashboards
+      - ./grafana/dashboards/json:/var/lib/grafana/dashboards
+    environment:
+      - GF_AUTH_ANONYMOUS_ENABLED=true
+      - GF_AUTH_ANONYMOUS_ORG_ROLE=Viewer
+      - GF_AUTH_BASIC_ENABLED=false
+      - GF_USERS_ALLOW_SIGN_UP=false
+      - GF_DASHBOARDS_DEFAULT_HOME_DASHBOARD_PATH=/var/lib/grafana/dashboards/sglang-dashboard.json
     depends_on:
       - prometheus
-    ports:
-      - "3000:3000"