Stemping the server

Alot of the times u don't know what has changed on the given server

• This gives u ability to see what has change before the previous configuration

Delegating

• By defulat the ansible copies the files to all the host
  • To prevent that use delegate_to local host

Template module

Docs

- name: use Jinja2 template to configure vsftpd
      template:
        src: vsftpd.j2
        dest: /etc/vsftpd/vsftpd.conf

1. Example Template

   #[ansible@controller templates]$ cat vsftpd.j2
   anonymous_enable={{ anonymous_enable }}
   local_enable={{ local_enable }}
   write_enable={{ write_enable }}
   anon_upload_enable={{ anon_upload_enable }}
   dirmessage_enable: YES
   xferlog_enable: YES
   connect_from_port_20: YES
   pam_service_name: vsftpd
   userlist_enable: YES
   # MY IP Address={{ ansible_facts['default_ipv4']['address'] }}
   

Filtering the nodes

• Shorter one

  {{ ansible_play_host_all | select('not in', ansible_play_hosts) | join(', ') }}
  

• Longer one

  {% for host in ansible_play_host_all %}
  
  {% if host not in ansible_play_hosts%}
  
  {{host}}
  
  {% endif %}
  
  {% endfor %}