I need to save fact into variable and use it afterwards

[boncalo mihai]

I have a task with run_once:true , which must run only on the first host and I need to use that hostname into a lookup file , something like this:

- name: Print facts
  debug:
    var: ansible_nodename
  register: admin_host

- name: Set authorized key took from file
  become: yes
  authorized_key:
    user: root
    state: present
    key: "{{ lookup('file', '/git/cephprep/files/{{ admin_host }}/root/.ssh/id_rsa.pub') }}"

Just this way it's not working

[Dick Visser]

You can't stack moustaches 

Try:

 key: "{{ lookup('file', '/git/cephprep/files/' ~ admin_host ~ '/root/.ssh/id_rsa.pub') }}"

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[boncalo mihai]

Not working unfortunately..:

TASK [cephprep : Print facts] ************************************************************************************************************************************************************************************
task path: /git/cephprep/tasks/keyprep.yml:19
ok: [ha01] => {
    "ansible_facts[\"nodename\"]": "ha01"
}

TASK [cephprep : Set authorized key took from file] **************************************************************************************************************************************************************
task path: /git/cephprep/tasks/keyprep.yml:24
fatal: [ha01]: FAILED! => {"msg": "template error while templating string: unexpected '~'. String: {{ lookup('file', '/git/cephprep/files/' ~  ~ '/root/.ssh/id_rsa.pub') }}"}
fatal: [ha02]: FAILED! => {"msg": "template error while templating string: unexpected '~'. String: {{ lookup('file', '/git/cephprep/files/' ~  ~ '/root/.ssh/id_rsa.pub') }}"}
fatal: [ha03]: FAILED! => {"msg": "template error while templating string: unexpected '~'. String: {{ lookup('file', '/git/cephprep/files/' ~  ~ '/root/.ssh/id_rsa.pub') }}"}

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[boncalo mihai]

Sorry, actually this is the result:

[WARNING]: Unable to find '/git/cephprep/files/{'ansible_facts["nodename"]': 'ha01', 'failed': False, 'changed': False}/root/.ssh/id_rsa.pub' in expected paths (use -vvvvv to see paths)

On Thu, Jul 28, 2022 at 7:39 PM Dick Visser <dnmv...@gmail.com> wrote:

--

[Dick Visser]

Just copy paste with the computer clipboard and not with eyeballs and fingers 

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[Walter Rowe]

Are all the tasks inside one playbook, or are different tasks in different jobs in an ansible tower workflow?

Use set_fact for within-playbook, and set_stats for creating artifacts sent back to ansible tower to be presented as extra_vars to downstream jobs in a workflow.

For within-playbook:

- set_fact:

    admin_host: "{{ ansible_nodename }}"

For downstream jobs in a workflow:

- set_stats:

    data:

      admin_host: "{{ ansible_nodename }}"

If you need both you can do both. An artifact created with set_stats in a playbook cannot be used later in that same playbook as a variable. You have to use set_fact for that.

For loading your file within the playbook or downstream

- name: Set authorized key took from file

  become: yes
  authorized_key:
    user: root
    state: present

    key: "{{ lookup('file', '/git/cephprep/files/' + admin_host + '/root/.ssh/id_rsa.pub') }}"

NOTE that I broke up the file path and inserted the admin_host with "+" which in Python (ansible runs on Python) will concatenate strings.

--

Walter Rowe, Chief

Infrastructure Service

Office of Information Systems Management

National Institute of Standards and Technology

US Dept of Commerce

[boncalo mihai]

I actually worked, Thanks! :)

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