The List manipulation doesnt work

[Rakesh Parida]

Hi Ansible Gurus,

I have created a list and from that list i want to prepare some customise list as per my need.

But when i execute my playbook i get at last step when i want to see my customised list i get an error  .

Can someone guide me where i am doing wrong.

TASK [Display Lists] ************************************************************************************************************************************************************************

ok: [localhost] => (item={ best_fav  }}) => {

    "msg": "{ best_fav  }}"

}

ok: [localhost] => (item=[AnsibleUndefined]) => {

    "msg": "[AnsibleUndefined]"

}

ok: [localhost] => (item=[AnsibleUndefined]) => {

    "msg": "[AnsibleUndefined]"

}

My playbook is as follows

---

- hosts: localhost

  tasks:

    - name: Create a list

      set_fact:

         some_value:

            - avenger

            - mk11

            - witcher

            - gow

            - saintsrow

    - debug:

        msg: "{{ some_value }}"

    - name: Print avenger

      set_fact:

        avenger_record: "{{ item }}"

      when: item is defined and item  == 'avenger'

      with_items: "{{ somevalue }}"

    - name: Print mk11

      set_fact:

        mk11_record: "{{ item }}"

      when: item is defined and item  == 'mk11'

      with_items: "{{ somevalue }}"

    - name: Print witcher

      set_fact:

        witcher_record: "{{ item }}"

      when: item is defined and item  == 'witcher'

      with_items: "{{ somevalue }}"

    - name: Print GOW

      set_fact:

        gow_record: "{{ item }}"

      when: item is defined and item  == 'gow'

      with_items: "{{ somevalue }}"

    - name: Print Saintsrow

      set_fact:

        saintsrow_record: "{{ item }}"

      when: item is defined and item  == 'saintsrow'

      with_items: "{{ somevalue }}"

    - name: Create an empty list variable

      set_fact:

        best_fav: []

        good_fav: []

        better_fav: []

    - name: Append string to list

      set_fact:

        best_fav: "{{ best_fav + [ avenger_record ] + [ mk11_record ] + [ witcher_record ] }}"

        good_fav: "{{ good_fav + [ gow_record ] }}"

        better_fav: "{{ better_fav + [ saintsrow_record ] }}"

    - name: Display Lists

      debug:

        msg: "{{ item }}"

      with_items:

         - "{ best_fav  }}"

         - "{{ good_fav }}"

         - "{{ better_fav }}"

      when: item != None

[Rakesh Parida]

Kindly Help me on this as i am stuck

[Vladimir Botka]

On Wed, 22 Jan 2020 21:58:14 -0800 (PST)
Rakesh Parida <rakeshp...@gmail.com> wrote:

> > - hosts: localhost
> > tasks:
> > - name: Create a list
> > set_fact:
> > some_value:
> > - avenger
> > - mk11
> > - witcher
> > - gow
> > - saintsrow
> >
> > - debug:
> > msg: "{{ some_value }}"
> >
> > - name: Print avenger
> > set_fact:
> > avenger_record: "{{ item }}"
> > when: item is defined and item == 'avenger'
> > with_items: "{{ somevalue }}"

The name of the variable is 'some_value'. Correct other references as well

with_items: "{{ some_value }}"

> > [...]

> > - name: Display Lists
> > debug:
> > msg: "{{ item }}"
> > with_items:
> > - "{ best_fav }}"
> > - "{{ good_fav }}"
> > - "{{ better_fav }}"
> > when: item != None

Balance the braces. Correct

with_items:
- "{{ best_fav }}"

Notes:

* Use 'loop' instead of 'with_items'. See
https://docs.ansible.com/ansible/latest/porting_guides/porting_guide_2.5.html#migrating-from-with-x-to-loop
* The variable 'item' is always defined in a loop (when not explicitly
renamed). The condition 'when: item is defined ...' is redundant. It is
enough to test e.g. 'when: item == "avenger"'
* The condition 'when: item != None' in the last task is also redundant. An
iteration will be skipped if the list is empty.
* Give a try to 'ansible-lint' and 'yamllint'

HTH,

-vlado