check for FQDN

[John.1209]

I need to ensure that the /etc/sysconfig/network file contains the FQDN on a good number of hosts.  I think the lineinfile module would be helpful here.  But I'm sure how to write the Ansible script to do so.  Any advice?

Thanks in advance.

[Johannes Kastl]

Start with:
https://gist.github.com/muloka/7687250
https://docs.ansible.com/ansible/lineinfile_module.html

Rough draft (untested):
###############

- fail: msg="Variable ansible_fqdn is not set"
when: ansible_fqdn is undefind

- name: Test lineinfile
lineinfile: dest=/etc/sysconfig/network regexp=^XYZ line="{{
ansible_fqdn }}"

###############

The most important part is the regexp, which tells the lineinfile
module which line you want to change.

Johannes