[CODE] add CentOS support to telegraf and cronmails (fix #6)

tasks/telegraf-Centos.yml

@@ -0,0 +1,18 @@
+---
+# Server/Telegraf: Install and Setup Telegraf Monitoring - CentOS Version
+
+- name: telegraf - Add telegraf repo
+  become: yes
+  yum_repository:
+    name: influxdb
+    description: "InfluxDB Repository - RHEL \$releasever"
+    baseurl: "https://repos.influxdata.com/rhel/\$releasever/\$basearch/stable"
+    enabled: yes
+    gpgcheck: yes
+    gpgkey: "https://repos.influxdata.com/influxdb.key"
+- name: telegraf - Install telegraf
+  become: yes
+  yum:
+    name: telegraf
+    state: latest
+    update_cache: yes