Use "default" filter:
https://docs.ansible.com/ansible/latest/user_guide/playbooks_filters.html#defaulting-undefined-variables
Example:
- hosts: localhost
gather_facts: no
vars:
d:
key: value
tasks:
- debug:
msg: "{{ d.missing_attr | default('default_value') }}"
On Thu, Jan 23, 2020 at 11:19 AM Jegan A <[email protected]> wrote:
>
> Hello Team,
>
> I am parsing register value using debug and using when condition to print
> particular matching value. While doing that am getting below error. some of
> the register value doesn't have "volume_attachments" variable due to that the
> when condition is failing. I want to ignore this error how can I do it. Could
> you please help me on this. Thanks in advance.
>
> fatal: [localhost]: FAILED! => {"msg": "The conditional check
> 'item.volume_attachments | length == 0' failed. The error was: error while
> evaluating conditional (item.volume_attachments | length == 0): 'dict object'
> has no attribute 'volume_attachments'\n\nThe error appears to be in
> '/var/lib/home/s': line 33, column 7, but may\nbe elsewhere in the file
> depending on the exact syntax problem.\n\nThe offending line appears to
> be:\n\n\n - debug:\n ^ here\n"}
>
>
> Regards,
> Jegan A
>
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