all values from a YAML dictionary like structure

[Valerio Crini]

Hi all,

I'd like to extract from a yaml complex dictionary as 

node:

        host1:

                - { id: '1' }

                - { id: '2' }

all values for 'id' for 'host1'

in order to convert this snipped of code from

id_list: {{ xxx }}

in

id_list:  '1' '2'

in python I can do the following

>>> node= {'test1':[{'id':'1'},{'id':'2'}]}

>>> node

{'test1': [{'id': '1'}, {'id': '2'}]}

>>> " ".join(["'%s'"% x['id'] for x in node['test1']])   #this is xxx

"'1' '2'"

but in ansible how can obtain the same?

[Matt Martz]

You can use the `map` filter, and the `join` filter.

"{{ node['test1']|map(attribute='id')|join(' ') }}"

http://jinja.pocoo.org/docs/dev/templates/

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Matt Martz
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sivel.net

[Valerio Crini]

Matt, you saved my day!

With your solution

 "'{{ node['test1'] | map(attribute='id') | join('\' \'') }}'"

I was able to do it,

thanks a lot!