add monitoring agents: node-exporter and cadvisor

infra/docker-compose.yml

@@ -122,3 +122,33 @@ services:
 networks:
   ticket-network:
     driver: bridge
+
+  node-exporter:
+    image: prom/node-exporter:latest
+    container_name: node-exporter
+    restart: unless-stopped
+    volumes:
+      - /proc:/host/proc:ro
+      - /sys:/host/sys:ro
+      - /:/rootfs:ro
+    command:
+      - '--path.procfs=/host/proc'
+      - '--path.rootfs=/rootfs'
+      - '--path.sysfs=/host/sys'
+      - '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)'
+    ports:
+      - "9100:9100"
+
+  cadvisor:
+    image: gcr.io/cadvisor/cadvisor:v0.49.1
+    container_name: cadvisor
+    restart: unless-stopped
+    privileged: true
+    volumes:
+      - /:/rootfs:ro
+      - /var/run:/var/run:ro
+      - /sys:/sys:ro
+      - /var/lib/docker/:/var/lib/docker:ro
+      - /dev/disk/:/dev/disk:ro
+    ports:
+      - "8080:8080"