Changed "netflows" role to be consistent with role setup.

Also, main.yaml in root is example of how to "call" roles

main.retry

@@ -0,0 +1 @@
+192.168.50.2

main.yaml

@@ -0,0 +1,5 @@
+---
+- hosts: netflows
+  become: true
+  roles:
+          - netflows

roles/netflows/tasks/main.yaml

@@ -1,25 +1,23 @@
 ---
-- hosts: netflows
-  tasks:
-    - name: Install fprobe Package
-      become: yes
-      apt:
-        name: ['fprobe']
-        state: present
-        update_cache: true
-      tags: install_fprobe
-    - lineinfile:
-        path: /etc/default/fprobe
-        state: present
-        backrefs: yes
-        regexp: '^FLOW_COLLECTOR="localhost:555"'
-        line: 'FLOW_COLLECTOR="192.168.200.247:9995"'
-      become: true
-    - name: enable fprobe service and ensure it is not masked
-      systemd:
-        name: fprobe
-        enabled: yes
-        masked: no
-        state: restarted
-      tags: enable_fprobe
-      become: true
+- name: Install fprobe Package
+  become: yes
+  apt:
+    name: ['fprobe']
+    state: present
+    update_cache: true
+  tags: install_fprobe
+- lineinfile:
+    path: /etc/default/fprobe
+    state: present
+    backrefs: yes
+    regexp: '^FLOW_COLLECTOR="localhost:555"'
+    line: 'FLOW_COLLECTOR="192.168.200.247:9995"'
+  become: true
+- name: enable fprobe service and ensure it is not masked
+  systemd:
+    name: fprobe
+    enabled: yes
+    masked: no
+    state: restarted
+  tags: enable_fprobe
+  become: true