Which training is this?
Usually with a training you need to come up with answers to questions
yourself, and the trainer shows you the answer if you don't know it.



On Sun, 26 Apr 2020 at 18:33, Pravin Patil <[email protected]> wrote:

> This is part of the training module I am currently learning, to try how
> the magic variables work.
> the centos is group, with one host, in the inventory file.
> the output of this playbook is supposed to be a file named "hostname" gets
> created on target host. And it should have two values: "ansible_hostname",
> and the "ipv4" address.
>
>
>
>
>
> On Sunday, 26 April 2020 09:24:08 UTC-7, Dick Visser wrote:
>
>> If you want to create files then I would suggest using the template
>> module, or even copy.
>>
>> You are targeting a group, but are using hostvars- what is your actual
>> intention? A group, a host, or...? This is necessary to answer your
>> question.
>>
>> BTW attaching screendumps add unnecessary clutter for people and make it
>> difficult for content to be indexed. So don't use screendumps but just
>> text.
>>
>>
>>
>>
>> On Sun, 26 Apr 2020 at 18:07, Pravin Patil <[email protected]> wrote:
>>
> Hello -
>>> I am trying to create a new file called 'hostname", and within it trying
>>> to copy the ansible_hostname, and ipv4 address using the hostvars magic
>>> variable.
>>> Attaching the screenshots.
>>>
>>>
>>>
>>> [image: Screen Shot 2020-04-26 at 9.06.21 AM.png]
>>>
>>> [image: Screen Shot 2020-04-26 at 9.06.43 AM.png]
>>>
>>>
>>> On Saturday, 25 April 2020 21:54:14 UTC-7, Dick Visser wrote:
>>>>
>>>> Hi
>>>>
>>>> I don't see attached files (which is good I'd say) but then the
>>>> indentation of the include yaml files is a bit messed up.
>>>>
>>>> Regardless of that, it is not clear what you are trying to do with this
>>>> playbook?
>>>> Write the default ipv4 address of all hosts in a group to a file on all
>>>> those hosts?
>>>> Please explain what you want to do, and why (as there may be
>>>> alternative way to achieve what you want).
>>>>
>>>> On Sun, 26 Apr 2020 at 04:01, Pravin Patil <[email protected]> wrote:
>>>>
>>> Please refer to the attached file for issues I am running into...
>>>>>
>>>>>
>>>>>
>>>>> *Here is my playbook:*
>>>>>
>>>>> --- # Ansible facts example
>>>>>
>>>>> - hosts: centos
>>>>>
>>>>>  tasks:
>>>>>
>>>>>      - name: create a file to write the fact values
>>>>>
>>>>>       lineinfile:
>>>>>
>>>>>           path: /home/ansible/hostname
>>>>>
>>>>>           create: yes
>>>>>
>>>>>           line: "{{ ansible_hostname }}"
>>>>>
>>>>>      - name: access magic variables
>>>>>
>>>>>       lineinfile:
>>>>>
>>>>>           path: /home/ansible/hostname
>>>>>
>>>>>           line: "{{
>>>>> hostvars['centos']['ansible_default_ipv4']['address'] }}"
>>>>>
>>>>>
>>>>>
>>>>> *And here is the command I am using to run it:*
>>>>>
>>>>> ansible-playbook -i inv facts.yml
>>>>>
>>>>>
>>>>>
>>>>> *And here is the inventory (host):*
>>>>>
>>>>> [centos]
>>>>>
>>>>> cen ansible_host=172.31.4.215
>>>>>
>>>>>
>>>>>
>>>>> *I keep running into this error:*
>>>>>
>>>>>
>>>>>
>>>>> PLAY [centos]
>>>>> ********************************************************************
>>>>>
>>>>> TASK [Gathering Facts]
>>>>> ***********************************************************
>>>>>
>>>>> ok: [cen]
>>>>>
>>>>> TASK [create a file to write the fact values]
>>>>> ************************************
>>>>>
>>>>> ok: [cen]
>>>>>
>>>>> TASK [access magic variables]
>>>>> ****************************************************
>>>>>
>>>>> fatal: [cen]: FAILED! => {"msg": "The task includes an option with an
>>>>> undefined variable. The error was: \"hostvars['centos']\" is
>>>>> undefined\n\nThe error appears to have been in '/home/ansible/facts.yml':
>>>>> line 9, column 13, but may\nbe elsewhere in the file depending on the 
>>>>> exact
>>>>> syntax problem.\n\nThe offending line appears to be:\n\n          line:
>>>>> \"{{ ansible_hostname }}\"\n     - name: access magic variables\n      ^
>>>>> here\n"}
>>>>>
>>>>> to retry, use: --limit @/home/ansible/facts.retry
>>>>>
>>>>> PLAY RECAP
>>>>>
>>>>> ***********************************************************************
>>>>>
>>>>> cen            : ok=2   changed=0  unreachable=0  failed=1
>>>>>
>>>>>
>>>>>
>>>>> *How to resolve this?*
>>>>>
>>>>>
>>>>>
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>>>>> .
>>>>>
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>>> .
>>>
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