Fix tasks alerts reference

Author: bvis

rootfs/etc/prometheus/alert.rules_tasks

@@ -1,6 +1,6 @@
 
 ALERT high_cpu_usage_on_container
-  IF sum(rate(container_cpu_usage_seconds_total{container_label_com_docker_swarm_task_name=~".+"}[5m])) by (container_label_com_docker_swarm_task_name,instance) * 100 > 580
+  IF sum(rate(container_cpu_usage_seconds_total{container_label_com_docker_swarm_task_name=~".+"}[5m])) by (container_label_com_docker_swarm_task_name,instance) * 100 > 80
   FOR 5m
   ANNOTATIONS {
       summary = "HIGH CPU USAGE WARNING: TASK '{{ $labels.container_label_com_docker_swarm_task_name }}' on '{{ $labels.instance }}'",

rootfs/etc/prometheus/prometheus.yml

@@ -13,7 +13,7 @@ global:
 
 rule_files:
   - "alert.rules_nodes"
-  - "alert.rules_containers"
+  - "alert.rules_tasks"
   - "alert.rules_service-groups"
 
 scrape_configs: