move grafana and prometheus to shared (#265)

demos/weather_forecast_signoz/docker-compose.yaml

@@ -34,31 +34,11 @@ services:
       - ~/archgw_logs:/var/log/
 
   prometheus:
-    image: prom/prometheus
-    container_name: prometheus
-    command:
-      - "--config.file=/etc/prometheus/prometheus.yaml"
-    ports:
-      - 9090:9090
-    restart: unless-stopped
-    volumes:
-      - ./prometheus:/etc/prometheus
-      - ./prom_data:/prometheus
-    # profiles:
-      # - monitoring
+    build:
+      context: ../shared/prometheus
 
   grafana:
-    image: grafana/grafana
-    container_name: grafana
+    build:
+      context: ../shared/grafana
     ports:
-      - 3000:3000
-    restart: unless-stopped
-    environment:
-      - GF_SECURITY_ADMIN_USER=admin
-      - GF_SECURITY_ADMIN_PASSWORD=grafana
-    volumes:
-      - ./grafana:/etc/grafana/provisioning/datasources
-      - ./grafana/dashboard.yaml:/etc/grafana/provisioning/dashboards/main.yaml
-      - ./grafana/dashboards:/var/lib/grafana/dashboards
-    # profiles:
-      # - monitoring
+      - "3000:3000"