adding rules to demo

Author: slorello89

grafana_v2/demo_v2/docker-compose.yml

@@ -3,6 +3,7 @@ services:
     image: prom/prometheus:latest
     volumes:
       - ./prometheus.yml:/etc/prometheus/prometheus.yml
+      - ../../prometheus_v2/rules/alerts.yml:/etc/prometheus/rules/alerts.yml
     ports:
       - "9090:9090"
     networks:

grafana_v2/demo_v2/prometheus.yml

@@ -13,7 +13,7 @@ global:
 
 # Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
 rule_files:
-  # - "first_rules.yml"
+  - "/etc/prometheus/rules/alerts.yml"
   # - "second_rules.yml"
 
 # A scrape configuration containing exactly one endpoint to scrape: