Ansible Playbook output to local file

[Chris Bidwell - NOAA Federal]

Hi all,

So I've got this playbook that is getting information from all of my hosts in my inventory and outputting that data to a local file.  However, it's not outputting on EVERY inventory host.  It's going through the list like it's supposed to be, but it's not putting everything in the file.  Any ideas?  I've got over 80 systems in my ALL_RHEL group but only get about 40 line items in my output.txt file.  

Here's my playbook:

---

- hosts: ALL_RHEL

  become: yes

  vars_files:

    - passwd.yml

    - vars.yml

  tasks:

    - name: Workstation or Server?

      shell: cat /etc/redhat-release | awk '{print $5}'

      register: rh_type

      tags: name

    - name: Output info to output.txt

      lineinfile:

        dest: /tmp/output.txt

        line: "{{ ansible_hostname }}, {{ ansible_kernel }}, {{ rh_type.stdout }}"

        create: yes

        insertafter: EOF

      delegate_to: localhost

[Kai Stian Olstad]

On 08.03.2019 17:03, 'Chris Bidwell - NOAA Federal' via Ansible Project wrote:
> Hi all,
>
> So I've got this playbook that is getting information from all of my hosts
> in my inventory and outputting that data to a local file. However, it's
> not outputting on EVERY inventory host. It's going through the list like
> it's supposed to be, but it's not putting everything in the file. Any
> ideas? I've got over 80 systems in my ALL_RHEL group but only get about 40
> line items in my output.txt file.

All[1] the "hosts" is trying to write to the same file at the same the same time, and that is causing your problem.

> Here's my playbook:
>
> ---
> - hosts: ALL_RHEL
> become: yes
> vars_files:
> - passwd.yml
> - vars.yml
>
> tasks:
> - name: Workstation or Server?
> shell: cat /etc/redhat-release | awk '{print $5}'
> register: rh_type
> tags: name
>
> - name: Output info to output.txt
> lineinfile:
> dest: /tmp/output.txt
> line: "{{ ansible_hostname }}, {{ ansible_kernel }}, {{
> rh_type.stdout }}"
> create: yes
> insertafter: EOF
> delegate_to: localhost

This last task you need to run as loop with run_once so only one task is writing to the file.
Something like this:

- name: Output info to output.txt
lineinfile:
dest: /tmp/output.txt

line: "{{ hostvars[item].ansible_hostname }}, {{ hostvars[item].ansible_kernel }}, {{ hostvars[item].rh_type.stdout }}"

create: yes
insertafter: EOF
delegate_to: localhost

run_once: yes
with_items: "{{ ansible_play_hosts }}"


[1] How may host is actually determine by fork and serial. Default it would be 5 hosts at a time.

--
Kai Stian Olstad

[Chris Bidwell - NOAA Federal]

Thanks for that info!  That's helping quite a bit.  I added another field to output and since adding that field, it's only giving me about 70 systems instead of the full 93.  Any idea on that one?

Here's my new playbook after implementing your recommendations:

--

- hosts: ALL_RHEL

  become: yes

  vars_files:

    - passwd.yml

    - vars.yml

  vars:

    - OUTPUT: "/home/chris.bidwell/ansible/roles/output.txt"

  tasks:

    - name: cleanup

      shell: "rm -rf {{ OUTPUT }}"

    - name: Workstation or Server?

      shell: cat /etc/redhat-release | awk '{print $5}'

      register: rh_type

    - name: Output info to OUTPUT.txt

      lineinfile:

        dest: "{{ OUTPUT }}"

        line: "{{ hostvars[item].ansible_hostname }}, {{ hostvars[item].ansible_kernel }}, {{ hostvars[item].rh_type.stdout }}, {{ hostvars[item].facter_virtual }}"

        create: yes

      delegate_to: localhost

      run_once: yes

      with_items: "{{ ansible_play_hosts }}"

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