Support monitoring for bond interfaces via telegraf

Change-Id: I963dbca50f9ce9f7ad4913640e18833039b68992
Partial-Bug: PROD-16264

linux/files/telegraf.conf

+[[inputs.bond]]
+{%- include 'telegraf/files/input/_common.conf' %}
+{%- if values.bond_interfaces is defined %}
+  bond_interfaces = {{ values.bond_interfaces | json }}
+{%- endif %}
+{%- if values.host_proc is defined %}
+  host_proc = "{{ values.host_proc | json }}"
+{%- endif %}
+{%- include 'telegraf/files/input/_filters.conf' %}

linux/meta/telegraf.yml

+{%- from "linux/map.jinja" import monitoring with context %}
 agent:
   input:
     cpu:
     swap:
     system:
     linux_sysctl_fs:
+{%- if monitoring.bond_status.interfaces is defined and monitoring.bond_status.interfaces %}
+    bond:
+      template: linux/files/telegraf.conf
+{%- if monitoring.bond_status.interfaces is list %}
+      bond_interfaces: {{ monitoring.bond_status.interfaces }}
+{%- endif %}
+{%- if monitoring.bond_status.host_proc is defined %}
+      host_proc: {{ monitoring.bond_status.host_proc }}
+{%- endif %}
+{%- endif %}