found a solution myself
- name: find interface without an ip
set_fact:
desired_interface_name: "{{ item }}"
when:
hostvars[inventory_hostname]['ansible_'+item].ipv4|length == 0
# ansible_{{ item }}.ipv4 is defined and (ansible_{{ item }}|length>0)
with_items:
"{{ ansible_interfaces }}"
it works. although it seems a bit counterintuitive...
why not the first way???
On Friday, June 25, 2021 at 11:38:59 AM UTC+3 [email protected] wrote:
> Hello
>
> here's my playbook, I am looking for interface without IP:
>
> ---
> - hosts: all
> vars:
> interface_name: ""
> ipaddress: "{{ ansible_default_ipv4.address }}"
> tasks:
> - name: enumerate interfaces
> debug:
> msg: "{{ item }}"
> with_items:
> "{{ ansible_interfaces }}"
>
> - debug:
> var: ansible_{{ item }}
> with_items:
> "{{ ansible_interfaces }}"
>
> - name: find interface without an ip
> set_fact:
> desired_interface_name: "{{ item }}"
> when:
> ansible_{{ item }}.ipv4 is defined and (ansible_{{ item }}|length>0)
> with_items:
> "{{ ansible_interfaces }}"
>
> - name: print result
> debug:
> var: desired_interface_name
>
> it works, but yells me a warn:
> [WARNING]: conditional statements should not include jinja2 templating
> delimiters such as {{ }} or {% %}. Found: ansible_{{item }}.ipv4 is defined
> and (ansible_{{ item }}|length>0)
>
> just out for curiosity, what's the proper way?
>
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