Proposale to optimize cadvisory cpu usage (#323)

configs/prometheus.yml

@@ -1,5 +1,5 @@
 scrape_configs:
   - job_name: 'Pi-Hosted'
-    scrape_interval: 30s
+    scrape_interval: 45s
     static_configs:
       - targets: ['localhost:9090', 'cadvisor:8080', 'node-exporter:9100']

stack/raspberrypi-monitoring.yml

@@ -1,6 +1,13 @@
 version: "2.4"
 services:
   cadvisor:
+    command:
+    - '--docker_only=true'
+    - '--housekeeping_interval=30s'
+    - '--disable_metrics=accelerator,cpu_topology,disk,memory_numa,tcp,udp,percpu,sched,process,hugetlb,referenced_memory,resctrl,cpuset,advtcp,memory_numa'
+    - '--store_container_labels=false'
+    - '--event_storage_event_limit=default=0'
+    - '--event_storage_age_limit=default=0'
     container_name: monitoring-cadvisor
     devices:
       - /dev/kmsg:/dev/kmsg