find ansible_fqdn and default_ipv4.address with ansible hostvars

[Gustave Pablo]

There are my .j2 template and playbook to generate hostname, fqdn and ipv4 for all manage node

  --> vi hosts.j2

{% for i in groups['all'] %}

{{ hostvars[i].inventory_hostname }}

{{hostvars[i].ansible_fqdn }}

{{hostvars[i].ansible_default_ipv4.address }}

{% endfor %}

--> vi hosts.yml

---

- hosts: all

  become: yes

  gather_facts: yes

  tasks:

  - name: user template to generate myhosts file

    template:

      src: hosts.j2

      dest: /home/hostvarsfile

When i run the playbook here what i get

 ansible-playbook hosts.yml

PLAY [all] **************************************************************************************************************************************************************

TASK [Gathering Facts] **************************************************************************************************************************************************

ok: [192.168.0.17]

fatal: [node12]: UNREACHABLE! => {"changed": false, "msg": "Failed to connect to the host via ssh: ssh: connect to host node12 port 22: No route to host", "unreachable": true}

ok: [node14]

ok: [node16]

ok: [node15]

TASK [user template to generate myhosts file] ***************************************************************************************************************************

fatal: [192.168.0.17]: FAILED! => {"changed": false, "msg": "AnsibleUndefinedVariable: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'ansible_fqdn'"}

fatal: [node14]: FAILED! => {"changed": false, "msg": "AnsibleUndefinedVariable: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'ansible_fqdn'"}

fatal: [node16]: FAILED! => {"changed": false, "msg": "AnsibleUndefinedVariable: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'ansible_fqdn'"}

fatal: [node15]: FAILED! => {"changed": false, "msg": "AnsibleUndefinedVariable: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'ansible_fqdn'"}

PLAY RECAP **************************************************************************************************************************************************************

192.168.0.17               : ok=1    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0

node12                     : ok=0    changed=0    unreachable=1    failed=0    skipped=0    rescued=0    ignored=0

node14                     : ok=1    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0

node15                     : ok=1    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0

node16                     : ok=1    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0

Can somebody help please