HowTo: combine two lists in vars section/file
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Jard Leex
Mar 30, 2016, 9:46:22 AM3/30/16
to Ansible Project
Hello together,
i'd like to combine two lists directly in a vars section/file.
I've tried the combine filter but as i understood it, it is for dicts and not lists.
Also the union filter did not worked for me as i tried it
I assume that i did something wrong.
Can someone here make the example below fly?
It would be great if the task could be solved within the vars itself without editing the playbook using them.
Thank you very much!
Best
Jard
i'd like to combine two lists directly in a vars section/file.
I've tried the combine filter but as i understood it, it is for dicts and not lists.
Also the union filter did not worked for me as i tried it
I assume that i did something wrong.
Can someone here make the example below fly?
---
- name: combine lists
hosts: localhost
vars:
- level1keyA:
- hostname: foo
state: present
path:
- left
- hostname: bar
state: present
addonpath:
- righthere
path:
- "{{ WHAT TO WRITE HERE? }}"
- level1keyB:
- right
- middle
- top
tasks:
- name: result of level1keyA
debug:
msg: "{{ level1keyA }}"
- name: result of level1keyB
debug:
msg: "{{ level1keyB }}"It would be great if the task could be solved within the vars itself without editing the playbook using them.
Thank you very much!
Best
Jard
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Jard Leex
Mar 30, 2016, 10:00:05 AM3/30/16
to Ansible Project
To make my request a bit more clear:
I'd like to have the entries of
I'd like to have the entries of
level1keyB in the path list of the hostname bar. The key 'addonpath' is just an guessed construct by me. Maybe this would also work.
- level1keyA:
- hostname: foo
state: present
path:
- left
- hostname: bar
state: present
path:
- righthere
- "{{ entries of level1keyB }}"
But how to do it in practise?
Thank you.
John Buxton
Mar 31, 2016, 7:07:31 PM3/31/16
to Ansible Project
In your second example, you could do this:
path: "{{ ['righthere'] | union(level1keyB) }}"
I'm not sure it's possible in your first example, because to put this in your "WHAT TO WRITE HERE" section you have to access "addonpath" from another part of the same level1keyA data structure, so you end up with a recursive loop error.
Jard Leex
Apr 1, 2016, 3:12:30 AM4/1/16
to Ansible Project
Hi John Buxton,
thanks for your reply.
Indeed that worked.
thanks for your reply.
Indeed that worked.
--
- name: combine lists
hosts: localhost
vars:
- level1keyA:
- hostname: foo
state: present
path:
- left
- hostname: bar
state: present
path:
- righthere
- "{{ ['righthere'] |union (level1keyB) }}"
- level1keyB:
- right
- middle
- top
tasks:
- name: result of level1keyA
debug:
msg: "{{ level1keyA }}"
- name: result of level1keyB
debug:
msg: "{{ level1keyB }}"
:~/ansible ansible-playbook test.yml
PLAY [combine lists] ***********************************************************
TASK [setup] *******************************************************************
Friday 01 April 2016 08:47:45 +0200 (0:00:00.016) 0:00:00.017 **********
ok: [localhost]
TASK [result of level1keyA] ****************************************************
Friday 01 April 2016 08:47:46 +0200 (0:00:00.599) 0:00:00.616 **********
ok: [localhost] => {
"msg": [
{
"hostname": "foo",
"path": [
"left"
],
"state": "present"
},
{
"hostname": "bar",
"path": [
"righthere",
[
"righthere",
"right",
"middle",
"top"
]
],
"state": "present"
}
]
}
TASK [result of level1keyB] ****************************************************
Friday 01 April 2016 08:47:46 +0200 (0:00:00.030) 0:00:00.646 **********
ok: [localhost] => {
"msg": [
"right",
"middle",
"top"
]
}
PLAY RECAP *********************************************************************
localhost : ok=3 changed=0 unreachable=0 failed=0
But would it be possible to do this also with multiple entries in path of level1keyA? Like:
---
- name: combine lists
hosts: localhost
vars:
- level1keyA:
- hostname: foo
state: present
path:
- left
- hostname: bar
state: present
path:
- righthere
- peter
- paul
- mary
- "{{ WHAT NOW HERE? |union (level1keyB) }}"
- level1keyB:
- right
- middle
- top
tasks:
- name: result of level1keyA
debug:
msg: "{{ level1keyA }}"
- name: result of level1keyB
debug:
msg: "{{ level1keyB }}"
Listing all peter, paul, mary etc in front of the union wouldn't be very convenient either.
Thank you
Jard
Jard Leex
Jul 8, 2016, 4:48:22 AM7/8/16
to Ansible Project
Hi,
anyone else got an idea how to solve this?
Thanks in advance
Jard Leex
Aug 31, 2016, 2:59:42 AM8/31/16
to Ansible Project
Hi,
to calrify the question here comes a shorten code block
---- hosts: localhost gather_facts: no vars: - simple: - right - middle - top - nested: - hostname: foo path: - left - hostname: bar path: - blue - green - yellow - "{{ simple }}"
tasks: - name: content of nested debug: msg: "{{ nested }}"This is the current output:
PLAY [localhost] ***************************************************************
TASK [content of nested] *******************************************************Wednesday 31 August 2016 08:55:13 +0200 (0:00:00.025) 0:00:00.025 ****** ok: [localhost] => { "msg": [ { "hostname": "foo", "path": [ "left" ] }, { "hostname": "bar", "path": [ "blue", "green", "yellow", [ "right", "middle", "top" ] ] } ]}
PLAY RECAP *********************************************************************localhost : ok=1 changed=0 unreachable=0 failed=0 What I'd like to have is (manipulated output)
PLAY [localhost] ***************************************************************
TASK [content of nested] *******************************************************Wednesday 31 August 2016 08:55:13 +0200 (0:00:00.025) 0:00:00.025 ****** ok: [localhost] => { "msg": [ { "hostname": "foo", "path": [ "left" ] }, { "hostname": "bar", "path": [ "blue", "green", "yellow", "right", "middle", "top", ] } ]}
PLAY RECAP *********************************************************************localhost : ok=1 changed=0 unreachable=0 failed=0 Ideas?
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