Working with Ansible Roles

Run the following commands to create the structure needed for the role:

• sudo mkdir /etc/ansible/roles/baseline && sudo chown ansible.ansible /etc/ansible/roles/baseline
• mkdir /etc/ansible/roles/baseline/{templates,tasks,files}
• echo "---" > /etc/ansible/roles/baseline/tasks/main.yml

• cp /home/ansible/resources/motd.j2 /etc/ansible/roles/baseline/templates

• Create a file called /etc/ansible/roles/baseline/tasks/deploy_motd.yml with the following content:

  ---
  - template:
      src: motd.j2
      dest: /etc/motd
  

• Edit /etc/ansible/roles/baseline/tasks/main.yml to include the following lines at the bottom of the file:

  - name: configure motd
    import_tasks: deploy_motd.yml
  

• Create a file called /etc/ansible/roles/baseline/tasks/deploy_nagios.yml with the following content:

  ---
  - yum: name=nrpe state=latest
  

• Edit /etc/ansible/roles/baseline/tasks/main.yml to include the following lines at the bottom of the file (take care with the formatting.):

  - name: deploy nagios client
    import_tasks: deploy_nagios.yml
  

• Create a file called /etc/ansible/roles/baseline/tasks/edit_hosts.yml with the following content, substituting <<PROVIDED>PROVIDED> with the IP specified in /home/ansible/resources/nagios_info.txt:

  ---
  - lineinfile:
      line: "<<PROVIDED>PROVIDED> nagios.example.com"
      path: /etc/hosts
  

• Edit /etc/ansible/roles/baseline/tasks/main.yml to include the following lines at the bottom of the file:

       - name: edit hosts file
         import_tasks: edit_hosts.yml
  

• Copy the file /home/ansible/resources/authorized_keys to /etc/ansible/roles/baseline/files/.

• Create a file called /etc/ansible/roles/baseline/tasks/deploy_noc_user.yml with the following content:

  ---
  - user: name=noc
  - file:
       state: directory
       path: /home/noc/.ssh
       mode: 0600
       owner: noc
       group: noc
  - copy:
  	    src: authorized_keys
  	    dest: /home/noc/.ssh/authorized_keys
  	    mode: 0600
  	    owner: noc
  	    group: noc
  

• Edit /etc/ansible/roles/baseline/tasks/main.yml to include the following lines at the bottom of the file:

    	- name: set up noc user and key
    	  import_tasks: deploy_noc_user.yml
  

Edit /home/ansible/resources/web.yml to the following:

---
- hosts: webservers
  become: yes
  roles:
    - baseline
  tasks:
    - name: install httpd
      yum: name=httpd state=latest
    - name: start and enable httpd
      service: name=httpd state=started enabled=yes

Run ansible-playbook /home/ansible/resources/web.yml.