How do I pass a list as an --extra-vars

[Mikael Sandström]

Hi,

I got a list that looks like this

listname:                  

      - name: ble

        version: 1

        path: /some/path

        ...

        ...

which is accessed as

- name: do something

  shell: run some command

  with_items: listname

If I want to pass the list to a playbook as an --extra-vars, how would I do that?

regards

/M

[James Cammarata]

Hi Mikael,

There are essentially two ways you can do this:

1) Use quoted JSON

2) Put the data in either a JSON or YAML file.

Please refer to the documentation here for more details: http://docs.ansible.com/playbooks_variables.html#passing-variables-on-the-command-line

Thanks!

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[Mikael Sandström]

Thanks!

I cant get it to behave as a 'normal' list though, so obviously I'm doing something wrong.

If I run this playbook without extra vars:

---
- hosts: localhost
  connection: local
  gather_facts: false
  vars:
    listname:                  
      - name: ble
        version: 1
        path: /some/path

  tasks:
  - name: test extravars
    debug: msg="version - {{ item.version }}"
    #debug: msg=""
    with_items: listname

It works as expected, and I get this:

TASK: [test extravars] ******************************************************** 

ok: [localhost] => (item={'path': '/some/path', 'version': 1, 'name': 'ble'}) => {

    "item": {

        "name": "ble", 

        "path": "/some/path", 

        "version": 1

    }, 

    "msg": "version - 1"

}

However, if I try to do this 

ansible-playbook extravar.yml -e '{"listname":["name: foo, path: /asd/bsdfr, version: 2"]}'


PLAY [localhost] **************************************************************


TASK: [test extravars] ********************************************************
fatal: [localhost] => One or more undefined variables: 'unicode object' has no attribute 'version'

And I guess that is because everything in 'item' is treated like one string

TASK: [test extravars] ********************************************************
ok: [localhost] => (item=name: foo, path: /asd/bsdfr, version: 2) => {
    "item": "name: foo, path: /asd/bsdfr, version: 2",
    "msg": ""
}

If I quote each pair, I get 3 different 'items'

ansible-playbook extravar.yml -e '{"listname":["name: foo", "path: /asd/bsdfr", "version: 2"]}'


PLAY [localhost] **************************************************************


TASK: [test extravars] ********************************************************
ok: [localhost] => (item=name: foo) => {
    "item": "name: foo",
    "msg": ""
}
ok: [localhost] => (item=path: /asd/bsdfr) => {
    "item": "path: /asd/bsdfr",
    "msg": ""
}
ok: [localhost] => (item=version: 2) => {
    "item": "version: 2",
    "msg": ""

So, how should the quotes be placed to get it to behave like a 'normal' list? Or is there something else I need to do?

regards

/M

[Michael DeHaan]

JSON needs to be valid JSON :)

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[Mikael Sandström]

Well,  I guess that helps ;-) it's been a long day...

All good now, thanks!

/M

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[Mikael Sandström]

And just for completeness sake:

ansible-playbook extravar.yml -e '{"listname":[{"name":"foo","path":"/asd/bsdfr", "version":"2"}]}'


PLAY [localhost] **************************************************************


TASK: [test extravars] ********************************************************

ok: [localhost] => (item={u'path': u'/asd/bsdfr', u'version': u'2', u'name': u'foo'}) => {
    "item": {
        "name": "foo",
        "path": "/asd/bsdfr",
        "version": "2"
    },
    "msg": "version - 2"
}

Thanks!

/M