Updated PacketsDroppedByCpu* alerts

- changed their priority
- changed the 24h frame to 10 mins

Change-Id: I8c2cf1cd8a9fd985c8e4d77004179a92dbb7d5fd
Closes-Bug: PROD-27298
diff --git a/linux/map.jinja b/linux/map.jinja
index b24e9ce..a485c76 100644
--- a/linux/map.jinja
+++ b/linux/map.jinja
@@ -448,10 +448,6 @@
         'failed_auths_threshold': {
             'warn': 5,
         },
-        'netdev_budget_squeeze_rate': 0.1,
-        'packets_dropped_per_cpu_threshold': {
-            'minor': '0',
-            'major': '100'
-        }
+        'netdev_budget_squeeze_rate': 0.1
     },
 }, grain='os_family', merge=salt['pillar.get']('linux:monitoring')) %}
diff --git a/linux/meta/prometheus.yml b/linux/meta/prometheus.yml
index f405367..753a587 100644
--- a/linux/meta/prometheus.yml
+++ b/linux/meta/prometheus.yml
@@ -198,28 +198,24 @@
       annotations:
         summary: "{{ threshold }}{%- raw %} failed SSH logins"
         description: "{{ $value }} failed SSH login attempts on the {{ $labels.host }} node during the last 5 minutes."
-    PacketsDroppedByCpuMinor:
-      {%- endraw %}
-      {%- set packets_dropped_minor_threshold = monitoring.packets_dropped_per_cpu_threshold.minor %}
+    PacketsDroppedByCpuWarning:
       if: >-
-        floor(increase(nstat_packet_drop[24h])) > {{ packets_dropped_minor_threshold }}
+        floor(increase(nstat_packet_drop[10m])) > 0
+      labels:
+        severity: warning
+        service: system
+      annotations:
+        summary: "Increased number of CPU dropped packets"
+        description: "The {{ $labels.cpu }} CPU on the {{ $labels.host }} node dropped {{ $value }} packets during the last 10 minutes."
+    PacketsDroppedByCpuMinor:
+      if: >-
+        floor(increase(nstat_packet_drop[10m])) > 100
       labels:
         severity: minor
         service: system
       annotations:
-        summary: "CPU dropped {{ packets_dropped_minor_threshold }}{%- raw %} packets"
-        description: "The {{ $labels.cpu }} CPU on the {{ $labels.host }} node dropped {{ $value }} packets during the last 24 hours."
-    PacketsDroppedByCpuMajor:
-      {%- endraw %}
-      {%- set packets_dropped_major_threshold = monitoring.packets_dropped_per_cpu_threshold.major %}
-      if: >-
-        floor(increase(nstat_packet_drop[24h])) > {{ packets_dropped_major_threshold }}
-      labels:
-        severity: major
-        service: system
-      annotations:
-        summary: "CPU dropped {{ packets_dropped_major_threshold }}{%- raw %} packets"
-        description: "The {{ $labels.cpu }} CPU on the {{ $labels.host }} node dropped {{ $value }} packets during the last 24 hours."
+        summary: "CPU dropped more than 100 packets"
+        description: "The {{ $labels.cpu }} CPU on the {{ $labels.host }} node dropped {{ $value }} packets during the last 10 minutes."
     NetdevBudgetRanOutsWarning:
       {%- endraw %}
       {%- set squeeze_rate_threshold = monitoring.netdev_budget_squeeze_rate %}