default for undefined dict

Archives Ansible Project
1

Hi,

Here is my variable :

instances:

  • name: ref
    mgservices:
    name: test1

My default variable:

default_mgservice :
name: blah

I want to use “default_mgservice.name” when mgservices is not defined :
instances:

  • name: ref

Here is my template

{% for instance in instances %}
pgservice : {{ instance.mgservices.name | default(default_mgservice.name) }}
{% endfor %}

But it failed :

“AnsibleUndefinedVariable: ‘dict object’ has no attribute ‘mgservices’”}

I don’t understand why default do not work on dict? Any idea?

Thanks

2

FYI :
ansible 2.2.0.0

3

Just a guess:
Your problem is not the default, but rather how you try to address
your dict.

Try this:
pgservice: {{ instance["msgservices"]["name"] }}

Johannes

4

Just a guess:
Your problem is not the default, but rather how you try to address
your dict.

Try this:
pgservice: {{ instance[“msgservices”][“name”] }}

Johannes

Thanks but I have the same error. I want to use default_mgservice.name when mgservices is not defined.

I find this workarround :
{% if instance.mgservices is defined %}
pgservice : {{ instance.mgservices.name | default(default_mgservice.name) }}
{% else %}
pgservice : {{ default_mgservice.name }}
{% endif %}

5

Hi,

Try with this:
{% for instance in instances %}
pgservice : {{ (instance['mgservices'] | default(default_mgservice))['name'] }}
{% endfor %}

Cheers,
Marko
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