Hostvars giving me undefined error

[Rakesh Parida]

Hi 

Iam trying to access the variable from other hosts using hostvars. I am getting the undefined error.

Can anybody help me: stuck at this point

- hosts: yum

  gather_facts: false

  vars:

     file_locn: "/san/repos/{{ version }}/packages"

  tasks:

    - name: Find the Packages that are present in File location

      shell: ls -lrt {{ file_locn }} |awk 'NR>1{print $9}'|grep -i rpm

      register: files_present

    - name: Set Fact

      set_fact:

         some_value: "{{ files_present.stdout_lines }}"

    - debug:

        msg: "{{ some_value }}"

- hosts: localhost

  gather_facts: false

  tasks:

    - name: Show hostvars

      debug:

        msg: "{{ hostvars['yum']['some_value'] }}"

error:

PLAY [yum] ***********************************************************************************************************************************************************

TASK [Find the Packages that are present in File location] ***********************************************************************************************************

changed: [YUM01]

TASK [Set Fact] ******************************************************************************************************************************************************

ok: [YUM01]

TASK [debug] *********************************************************************************************************************************************************

ok: [YUM01] => {

    "msg": [

        "common-3.0.12.rpm", 

        

    ]

}

PLAY [localhost] *****************************************************************************************************************************************************

TASK [Show hostvars] *************************************************************************************************************************************************

fatal: [localhost]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: \"hostvars['yum']\" is undefined\n\nThe error appears to be in '/home/rparida1/raka1111.yml': line 20, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n  tasks:\n    - name: Show hostvars\n      ^ here\n"}

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

YUM01                   : ok=3    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   

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

[Dick Visser]

Is 'yum' a group name perhaps?

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Dick Visser
Trust & Identity Service Operations Manager
GÉANT

[Jean-Yves LENHOF]

Hi,

You should better use the find module instead of shell module and ls.

As said, yum seem to be a group... To use hostvars special variable you need to use host and not group...

Something like this will work :

msg: "{{ hostvars['YUM01']['some_value'] }}"

But instead of asking to remove your error, perhaps you could explain what you want to do...

Regards,

JYL

[Rakesh Parida]

Yum is a hostname ina group variable

And der are multiple yum server entries 

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[Rakesh Parida]

I had already tried d same but same error

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[Rakesh Parida]

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[Rakesh Parida]

Hi Dick/Jean,

My inventory file has only one  entry of yum..

Now i  have also tried to use :

 - name: Show hostvars

      debug:

        msg: "{{ hostvars[groups['yum']['some_value'] }}"

But still i get same error 

I think iam doing  some error in syntax.......

as i keep getting the undefined error

Pls suggest 

[Dick Visser]

On Fri, 24 Jan 2020 at 17:49, Rakesh Parida <rakeshp...@gmail.com> wrote:
>

You playbook only takes into account "localhost", as a result any
other hostvars will be undefined.