[ansible-project] Re: Access dict key when using with_subelements

[General Luken]

I have workaround for this. You basically have to use "include" as a 
function. Let's say your {{users}} structure looks like this:

users:
  ssh_keys:
  - somekeyfdsfdsfdsfsdfsdyttytry
  - someotherkeyfdsryekfdlmgdfm

In your main.yml there would be:

- include: ssh_key.yml
   _users_ssh_keys={{item.value.ssh_keys}}
   _users_username={{item.key}}
  with_dict: "{{users}}"

And in ssh_key.yml you would iterate over all ssh keys like this:

---
- name: SSH key is installed
  authorized_key: user="{{_users_username}}" key="{{_ssh_key_item}}"
  loop_control:
loop_var: _ssh_key_item
  with_items: "{{_users_ssh_keys}}"

I hope it will help someone.

On Thursday, April 7, 2016 at 12:47:01 AM UTC+2, Peter Thorson wrote:
>
> when using with_dict, item.key retrieves the dict key and item.value 
> retrieves the value.
>
> however, when using with_subelements and having the first item being 
> looped over be a dict, item.0 seems to return only the value. Is there a way
>
> concrete example:
>
> vars:
>   users:
> bob:
>   authorized_keys:
> - "ssh-rsa a..."
> - "ssh-rsa b..."
> alice:
>   authorized_keys:
> - "ssh-rsa c..."
>
>
> tasks:
>   - authorized_key: user=??? key="{{ item.1 }}"
> with_subelements:
>   - "{{ users }}"
>   - authorized_keys
>
> How do I retrieve the username? I understand that I could change users 
> into a list and add username as a property. I want to avoid that because 
> this users list is used for lots of different things where being able to 
> look up information about a user by username is required.
>

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[ansible-project] Re: Access dict key when using with_subelements

[Peter Thorson]

I have been using a horrible hacky workaround, specifically, adding the key 
as a field to the dict element:

vars:
  users:
bob:
  name: bob
  authorized_keys:
- "ssh-rsa a..."
- "ssh-rsa b..."
alice:
  name: alice
  authorized_keys:
- "ssh-rsa c..."


tasks:
  - authorized_key: user=item.0.name key="{{ item.1 }}"
with_subelements:
  - "{{ users }}"
  - authorized_keys

This is difficult to maintain because the two names can get out of sync, it 
is not intuitive at all that making a new user should include the name 
again when its already used as the key. It is just the least worst solution 
I've found.

I wish there was a sane, unified, flexible solution to looping in Ansible. 
As it stands there appear to be a bunch of one-off non-interoperable 
looping constructs designed for very narrow purposes. This is easily the 
most frustrating aspect of using Ansible for anything non-trivial.

On Thursday, October 13, 2016 at 10:10:32 AM UTC-5, Slavek Jurkowski wrote:
>
> Hi Peter,
>
> Did you find a solution to this? I'm facing the same issue and it sure 
> sucks!
>
> Thanks
>
>
> On Wednesday, April 6, 2016 at 5:47:01 PM UTC-5, Peter Thorson wrote:
>>
>> when using with_dict, item.key retrieves the dict key and item.value 
>> retrieves the value.
>>
>> however, when using with_subelements and having the first item being 
>> looped over be a dict, item.0 seems to return only the value. Is there a way
>>
>> concrete example:
>>
>> vars:
>>   users:
>> bob:
>>   authorized_keys:
>> - "ssh-rsa a..."
>> - "ssh-rsa b..."
>> alice:
>>   authorized_keys:
>> - "ssh-rsa c..."
>>
>>
>> tasks:
>>   - authorized_key: user=??? key="{{ item.1 }}"
>> with_subelements:
>>   - "{{ users }}"
>>   - authorized_keys
>>
>> How do I retrieve the username? I understand that I could change users 
>> into a list and add username as a property. I want to avoid that because 
>> this users list is used for lots of different things where being able to 
>> look up information about a user by username is required.
>>
>

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