Hi Martin,
Thanks, but I'm not sure varnames is useful to me.
I know what the variable is called, but don't know how to construct it
programmatically (as the Ansible manual calls it). Taking the example code
from the documentation results in an empty list:
...
- debug:
msg: "{{ lookup('varnames', ansible_distribution + '.hostkeys') }}"
...
TASK [debug] *******
ok: [localhost] => {
"msg": []
}
...
Regards,
Willem.
On Wednesday, June 24, 2020 at 2:39:52 PM UTC+2, Martin Krizek wrote:
>
> You can use the varnames lookup to get variable names that match given
> pattern:
> https://docs.ansible.com/ansible/latest/plugins/lookup/varnames.html
>
> On Wed, Jun 24, 2020 at 12:33 PM Willem Bos <[email protected]
> <javascript:>> wrote:
> >
> > Hi,
> >
> > The playbook below should generate a file with the content:
> > a,b
> > ssh_host_key
> > ssh_rsa_host_key
> >
> > However, the way I construct the variable names results in either
> syntax/templating errors or 'variable name does not exists'.
> >
> > ---
> > - hosts: localhost
> > connection: local
> >
> > vars:
> > CentOS:
> > ciphers: "a,b"
> > hostkeys:
> > - "ssh_host_key"
> > - "ssh_rsa_host_key"
> > tasks:
> > - copy:
> > dest: "{{ playbook_dir }}/test.out"
> > content: |
> >
> > # This works:
> > {{ CentOS.ciphers }}
> >
> > # This results in 'No variable found with this name':
> > {# Ciphers {{ lookup('vars', ansible_distribution + '.ciphers')
> }}
> >
> > # Templating errors:
> > {% for hostkey in {{ lookup('vars', ansible_distribution +
> '.hostkeys') }} %}
> > {{ hostkey }}
> > {% endfor %}
> >
> > # Templating errors:
> > {% for hostkey in {{
> hostvars[inventory_hostname][ansible_distribution + '.hostkeys'] }} %}
> > {{ hostkey }}
> > {% endfor %}
> >
> >
> > What is the proper way to 'assemble' the variable names? Or is there a
> better way of doing this?
> >
> > Regards,
> > Willem.
> >
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