[prometheus] Add mount point and do not spam every 3h

roles/prometheus-alertmanager/templates/prometheus/alertmanager.yml.j2

@@ -24,7 +24,7 @@ route:
   # This way ensures that you get multiple alerts for the same group that start
   # firing shortly after another are batched together on the first 
   # notification.
-  group_wait: 30s
+  group_wait: 1m
 
   # When the first notification was sent, wait 'group_interval' to send a batch
   # of new alerts that started firing for that group.
@@ -32,7 +32,7 @@ route:
 
   # If an alert has successfully been sent, wait 'repeat_interval' to
   # resend them.
-  repeat_interval: 3h 
+  repeat_interval: 12h 
 
   # A default receiver
   #receiver: team-roots-mails

roles/prometheus/templates/prometheus/alert.rules.yml.j2

@@ -33,8 +33,8 @@ groups:
     labels:
       severity: warning
     annotations:
-      summary: "Presque plus de stockage sur {{ $labels.instance }}"
-      description: "Le disque est presque rempli ({{ $value }}% restant)"
+      summary: "Presque plus de stockage sur {{ $labels.mountpoint }} sur {{ $labels.instance }}"
+      description: "La partition est presque remplie ({{ $value }}% restant)"
 
   # Alert for out of inode space on disk
   - alert: OutOfInodes
@@ -43,7 +43,7 @@ groups:
     labels:
       severity: warning
     annotations:
-      summary: "Presque plus d'inodes disque sur {{ $labels.instance }}"
+      summary: "Presque plus d'inodes disque sur {{ $labels.mountpoint }} sur {{ $labels.instance }}"
       description: "Le disque est presque à courre d'inodes disponibles ({{ $value }}% restant)"
 
   # Alert for high CPU usage