In the setup module (get_facts), Ansible should be detecting an FQDN that
you can access with '{{ ansible_fqdn }}'
I would use the lineinfile module. A rough draft (untested) without
> correct indentation:
>
> - name: "Ensure FQDN is present"
> lineinfile:
> dest=/etc/sysconfig/network
> line="HOSTNAME={{ ansible_fqdn }}"
>
> regexp="^HOSTNAME=.*"
> insertafter=EOF
> state=present
>
> This has to be adapted, of course. Replace FQDN with your real fqdn.
>
> Basically this looks for a line beginning with "HOSTNAME" (the regexp
> part) and replaces it with the line "HOSTNAME=FQDN". If there is no
> line matching the regexp, it puts the line at the end of the file.
>
> Johannes
>
>
>
>
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