Changing the delimiter for lookup results

[Jesse Schlüter]

Hey everyone,

as I understand, normally a lookup returning a list, will be joined to a string using "," as a delimiter. Is it possible to change this behavior?

I only found the solution by patching the code. The background of the question is, that I would like to do something like this:

  vars:

    ssh_keys:

      - key1

      - key2

      - key3

  tasks:

    - name: set authorized keys exclusive

      authorized_key: user=root exclusive=yes key="{{ lookup('items', ssh_keys, delimiter='\n') }}"

Unfortunately authorized_key using the exclusive flag is not loop aware. I do already have a patch for 1.9 enabling the delimiter keyword, but I wanted to ask whether there is a "native" solution before bothering the developers with a pull request.

Best regards,

Jesse

[Matt Martz]

I would instead of looping, just use the |join filter.

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Matt Martz
@sivel
sivel.net

[Jesse Schlüter]

If I understand you correctly this would work like this, yes?

vars:

  ssh_keys_string: "{{ lookup('items', ssh_keys, wantlist=True) | join('\n') }}"

I know my example does not make much sense, but I do not actually have the ssh_key variable as a list of all ssh-keys, but create it via lookup. I just used the items lookup to simplify the example.

Am Samstag, 9. Januar 2016 00:07:21 UTC+1 schrieb Matt Martz:

I would instead of looping, just use the |join filter.

On Friday, January 8, 2016, Jesse Schlüter <jesse.s...@helix360.de> wrote:

Hey everyone,

as I understand, normally a lookup returning a list, will be joined to a string using "," as a delimiter. Is it possible to change this behavior?

I only found the solution by patching the code. The background of the question is, that I would like to do something like this:

  vars:

    ssh_keys:

      - key1

      - key2

      - key3

  tasks:

    - name: set authorized keys exclusive

      authorized_key: user=root exclusive=yes key="{{ lookup('items', ssh_keys, delimiter='\n') }}"

Unfortunately authorized_key using the exclusive flag is not loop aware. I do already have a patch for 1.9 enabling the delimiter keyword, but I wanted to ask whether there is a "native" solution before bothering the developers with a pull request.

Best regards,

Jesse

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[Matt Martz]

What I am saying is to literally do:

key="{{ ssh_keys|join('\n') }}"

There is no need to use any lookup plugin.

Just join the list with a \n

On Saturday, January 9, 2016, Jesse Schlüter <jesse.s...@helix360.de> wrote:

If I understand you correctly this would work like this, yes?

vars:

  ssh_keys_string: "{{ lookup('items', ssh_keys, wantlist=True) | join('\n') }}"

I know my example does not make much sense, but I do not actually have the ssh_key variable as a list of all ssh-keys, but create it via lookup. I just used the items lookup to simplify the example.

Am Samstag, 9. Januar 2016 00:07:21 UTC+1 schrieb Matt Martz:

I would instead of looping, just use the |join filter.

On Friday, January 8, 2016, Jesse Schlüter <jesse.s...@helix360.de> wrote:

Hey everyone,

as I understand, normally a lookup returning a list, will be joined to a string using "," as a delimiter. Is it possible to change this behavior?

I only found the solution by patching the code. The background of the question is, that I would like to do something like this:

  vars:

    ssh_keys:

      - key1

      - key2

      - key3

  tasks:

    - name: set authorized keys exclusive

      authorized_key: user=root exclusive=yes key="{{ lookup('items', ssh_keys, delimiter='\n') }}"

Unfortunately authorized_key using the exclusive flag is not loop aware. I do already have a patch for 1.9 enabling the delimiter keyword, but I wanted to ask whether there is a "native" solution before bothering the developers with a pull request.

Best regards,

Jesse

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Matt Martz
@sivel
sivel.net

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