Added all files

examples/000_example/roles/common/tasks/main.yml

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+---
+# tasks file for common
+- name: install epel repo
+  apt: 
+    name: epel-release 
+    state: present
+    
+- include: selinux.yml
+- include: ntp.yml

examples/000_example/roles/common/tasks/ntp.yml

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+---
+- name: install ntp
+  apt: 
+    name: ntp 
+    state: present
+
+- name: configure ntp file
+  template: 
+    src: ntp.conf.j2 
+    dest: /etc/ntp.conf
+
+- name: start ntp
+  service: 
+    name: ntpd 
+    state: started

examples/000_example/roles/common/tasks/selinux.yml

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+---
+- name: install python bindings for SELinux
+  apt: 
+    name: {{item}} 
+    state: present
+  with_items:
+  - libselinux-python
+  - libsemanage-python
+
+- name: test to see if SELinux is running
+  command: getenforce
+  register: sestatus
+  changed_when: false