Thanks it worked.
vars:
foo: ['vs1','vs2','vs3','vs4']
tasks:
- name: counting the array elements
debug:
msg: "{{foo|length}}"
On Thursday, 19 March 2020 20:53:58 UTC+5:30, mahesh g o wrote:
>
> - hosts: localhost
> gather_facts: false
> vars:
> foo: ['vs1','vs2','vs3','vs4']
> tasks:
> - name: counting the array elements
> yes: "{{foo|length}}"
>
> seeing the below error: not sure what am i missing here:
>
> ERROR! Syntax Error while loading YAML.
> mapping values are not allowed in this context
>
> The error appears to be in '/root/ansible/playbooks/syst/lab.yml': line 7,
> column 12, but may
> be elsewhere in the file depending on the exact syntax problem.
>
> The offending line appears to be:
>
> - name: counting the array elements
> yes: "{{foo}}"|length
> ^ here
> We could be wrong, but this one looks like it might be an issue with
> missing quotes. Always quote template expression brackets when they
> start a value. For instance:
>
> with_items:
> - {{ foo }}
>
> Should be written as:
>
> with_items:
> - "{{ foo }}"
>
>
>
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