how to use a variable from one task to another task

[Charles Daniel]

Team, 

I would like to use the variable i got from one ansible task to another task where hosts are different.

Please help me use the variable to use it on another task!!

---

- name: Get the primary router tunnel ip address 

  hosts: primary

  gather_facts: false

  connection: local

  tags:

    - "get_sec_tunnel_ip"

  tasks:

  - name: Obtain primary tunnel interface ip address

    ios_command:

      commands:

        - "show interface tunnel1 | sec Internet address"

    register: output

  - debug:

      msg: "{{ output.stdout}}"

  - set_fact:

      intf: |

          - {{output.stdout | map('regex_search','(([0-9]+(.)[0-9]+(.)[0-9]+(.)[0-9]+))') | list }}

    register: sec_tunnel_ip

  - debug: 

       msg={{ sec_tunnel_ip }}

- name: Display router tunnel ip address from this task

  hosts: secondary

  gather_facts: false

  connection: local

  tags:

    - "use_output"

  tasks:

  - name: Display primary tunnel interface ip address

  - debug:

      msg: "{{ sec_tunnel_ip }}"

[Charles Daniel]

When i try to use/inoke on another task, i get error as sec_tunnel_ip is undefined. 

[Dick Visser]

Those variables are scoped to a host, so they're not available to other hosts. 

A common trick is to assign them to a dummy host and access them that way. 

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Sent from a mobile device - please excuse the brevity, spelling and punctuation.

[Dick Visser]

https://stackoverflow.com/questions/39207616/if-set-fact-is-scoped-to-a-host-can-i-use-dummy-host-as-a-global-variable-map

[Charles Daniel]

Thanks a lot, Dick Visser, I just wanted to access it, even with a dummy hostname is ok.  let me try that.

Thanks,

Charles Daniel

To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/CAL8fbwN1k60EiF-BivFqsdPRQvDAHy9D4X3yWjV6BPKesJyvGA%40mail.gmail.com.

[Charles Daniel]

One more help needed, When I try to do regex to get the ip output, it comes along with the unicode characters such as - [u'
how to eliminate it while grepping it through regex_search itself.

Actual output: "- [u'172.16.121.6']\n"

I want it to be(expected): 172.16.121.6


  - name: Obtain secondary tunnel interface ip address

    ios_command:
      commands:
        - "show interface tunnel1 | sec Internet address"
    register: output
  - debug:
      msg: "{{ output.stdout}}"
  - set_fact:
      intf: |
          - {{output.stdout | map('regex_search','(([0-9]+(.)[0-9]+(.)[0-9]+(.)[0-9]+))') | list }}
    register: sec_tunnel_ip
  - debug:
       msg={{ sec_tunnel_ip }}

Output:
********

TASK [debug] ******************************************************************************************************
ok: [172.16.12.1] => {
    "msg": {
        "ansible_facts": {
            "intf": "- [u'172.16.121.6']\n"
        },
        "changed": false,
        "failed": false
    }
}

Thanks,

Charles Daniel

[Dick Visser]

You're sending only the output of the debug task with the regex_search
applied to the output.stdout variable.
We need to see the output.stdout variable before you mangled it.

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--
Dick Visser
Trust & Identity Service Operations Manager
GÉANT

[Charles Daniel]

Hi Dick, Below is the complete output of the playbook,

[root@tower1 temp_play]#  ansible-playbook testplay2.yml -i /etc/ansible/temp_play/hosts

PLAY [Get the secondary router tunnel ip address] *****************************************************************

TASK [Obtain secondary tunnel interface ip address] ***************************************************************
ok: [172.16.12.1]

TASK [debug] ******************************************************************************************************
ok: [172.16.12.1] => {

    "msg": [
        "Internet address is 172.16.121.6/32"
    ]
}

TASK [set_fact] ***************************************************************************************************
ok: [172.16.12.1]

TASK [debug] ******************************************************************************************************
ok: [172.16.12.1] => {
    "msg": {
        "ansible_facts": {
            "intf": "- [u'172.16.121.6']\n"
        },
        "changed": false,
        "failed": false
    }
}

PLAY RECAP ********************************************************************************************************
172.16.12.1                : ok=4    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

[root@tower1 temp_play]#

Thanks,

Charles Daniel

To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/CAL8fbwPitsJ0-RyoEdfUWJkV%3DBusc8y7gx8r_YnB1YuvDwuCeQ%40mail.gmail.com.

[Stefan Hornburg (Racke)]

On 08/07/2021 12:18, Charles Daniel wrote:
> Hi Dick, Below is the complete output of the playbook,
>
> [root@tower1 temp_play]#  ansible-playbook testplay2.yml -i /etc/ansible/temp_play/hosts
>
> PLAY [Get the secondary router tunnel ip address] *****************************************************************
>
> TASK [Obtain secondary tunnel interface ip address] ***************************************************************
> ok: [172.16.12.1]
>
> TASK [debug] ******************************************************************************************************
> ok: [172.16.12.1] => {
>     "msg": [

>         "Internet address is 172.16.121.6/32 <http://172.16.121.6/32>"
>     ]
> }
>

Hello Charles,

the output looks like a string, so the map filter doesn't makes sense here.

Please try:

{{output.stdout | regex_search('(([0-9]+(.)[0-9]+(.)[0-9]+(.)[0-9]+))') }}

Regards
Racke

> TASK [set_fact] ***************************************************************************************************
> ok: [172.16.12.1]
>
> TASK [debug] ******************************************************************************************************
> ok: [172.16.12.1] => {
>     "msg": {
>         "ansible_facts": {
>             "intf": "- [u'172.16.121.6']\n"
>         },
>         "changed": false,
>         "failed": false
>     }
> }
>
> PLAY RECAP ********************************************************************************************************
> 172.16.12.1                : ok=4    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
>
> [root@tower1 temp_play]#
>
> Thanks,
> Charles Daniel
>
>
> On Thu, 8 Jul 2021 at 15:34, Dick Visser <dick....@geant.org <mailto:dick....@geant.org>> wrote:
>
> You're sending only the output of the debug task with the regex_search
> applied to the output.stdout variable.
> We need to see the output.stdout variable before you mangled it.
>

> > To unsubscribe from this group and stop receiving emails from it, send an email to ansible-proje...@googlegroups.com <mailto:ansible-project%2Bunsu...@googlegroups.com>.
> > To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/CAPnV%3Dh%2B7LxPqEnbrezq3Maofib9Ak8UmLUsK10twE0DeqXKBPw%40mail.gmail.com <https://groups.google.com/d/msgid/ansible-project/CAPnV%3Dh%2B7LxPqEnbrezq3Maofib9Ak8UmLUsK10twE0DeqXKBPw%40mail.gmail.com>.

>
>
>
> --
> Dick Visser
> Trust & Identity Service Operations Manager
> GÉANT
>
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>
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--
Ecommerce and Linux consulting + Perl and web application programming.
Debian and Sympa administration.

[Rajthecomputerguy]

Try   "{{ output.stdout[0] }}" on the debug task

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Thanks,

Pushparaj G

[Charles Daniel]

returns error as a pattern not matching!!.

TASK [debug] ******************************************************************************************************
ok: [172.16.12.1] => {

    "hostvars['SEC_HOST']['sec_tunnel_ip1']": "- [None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None]\n"
}
 

Thanks,

Charles Daniel

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[Brian Coca]

no need for dummy, just use hostvars[<host that has var>][<varname>]

if you set the vars on a group you can
hostvars[group[<groupname>][0]][<varname>] ( 0 is 'first host in
group, but you can use random index <= # of hosts in group)

--
----------
Brian Coca

[Charles Daniel]

Thanks Brian

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Thanks,

Charles Daniel