Trying to use lookup('file', ...) with an array of items.

[Jason Harris]

Hi All,

I am trying to load up a list of users and their keys. As in something like:

  authorized_key: user={{item.name}} key="{{ lookup('file', {{item.file}}) }}"

    with_items:

      - { name: "{{bill_username}}",  file: 'bill_ras.pub' }

      - { name: "{{bob_username}}",  file: 'bob_rsa.pub' }

      - { name: "{{kim_username}}",  file: 'kim_rsa.pub' }

This fails with:

failed: [deploytest] => (item={'name': u'billsmith', 'file': 'bill_rsa.pub'}) => {"failed": true, "item": {"file": "bill_rsa.pub", "name": "billsmith"}}

msg: Failed to lookup user {{item.name}}: 'getpwnam(): name not found: {{item.name}}

I have tried various permutations with quoting and can't seem to get this to work. This looks like a related thread...

https://groups.google.com/forum/#!msg/ansible-project/mNy0xhZ8sew/wKA4qKOM15sJ

It is a strange error message that I don't quite get. In any case how do I set a range of users and keys without repeating the line a number of times?

This is on ansible 1.6.3.

Thanks,

   Jason

[James Cammarata]

This is a known issue when using with_items and complex data structures, where the data structure is flattened to a string.

Do this instead:

  - authorized_key:

       user: "{{item['name']}}"

       key: "{{ lookup('file', {{item.file}}) }}"

    with_items:

      - { name: "{{bill_username}}", file: 'bill_ras.pub' }

      - { name: "{{bob_username}}",  file: 'bob_rsa.pub' }

      - { name: "{{kim_username}}",  file: 'kim_rsa.pub' }

This preserves the data structure and works as intended.

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[Jason Harris]

Thanks! That is what I needed to know!

Cheers,

   Jason

[Brian Coca]

Too many mustaches!!!! You just use a bare item.file inside the looks.

Brian Coca

[Jason Harris]

Thanks! Yes, good point and that worked (having the bare item whereas with the extra moustaches it didn't work.)

So in the end the following works:

 - authorized_key:

       user: "{{item['name']}}"

       key: "{{ lookup('file', item.file }}"

    with_items:

      - { name: "{{bill_username}}", file: 'bill_ras.pub' }

      - { name: "{{bob_username}}",  file: 'bob_rsa.pub' }

      - { name: "{{kim_username}}",  file: 'kim_rsa.pub' }

Thanks all!

Cheers,

   Jason

[Michael DeHaan]

It's also imaginary syntax.

  authorized_key: user={{item.name}} key="{{ lookup('file', item.file) }}"

Do not nest "{{" inside "{{", it's not a thing :)

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