Ansible nested loop and jinja2 filter - ansible

Question

I need to list some directories in my project, I have this kind of tree :
.
└── path
└── to
├── aa
│   └── x9999
├── bb
│   ├── x9997
│   └── x9998
├── cc
└── dd
I have made this task in my playbook to find directories:
---
- name: 'test of find'
hosts: localhost
vars:
loopVar:
- 'aa'
- 'bb'
- 'cc'
- 'dd'
tasks:
- name: 'find'
find:
path: '/path/to/{{item}}'
file_type: directory
patterns: '[^_]*[a-z]+[0-9]{4}[a-z]*$'
use_regex: yes
register: list
loop: '{{loopVar}}'
and the result is :
{
"list": {
"results": [
{
"files": [
{
"path": "/path/to/aa/x9999"
}
],
"item": "aa",
"matched": 1
},
{
"files": [
{
"path": "/path/to/bb/x9997"
},
{
"path": "/path/to/bb/x9998"
}
],
"item": "bb",
"matched": 2
},
{
"files": [],
"item": "cc",
"matched": 0
},
{
"files": [],
"item": "dd",
"matched": 0
}
]
}
}
I want to invoke a include_role with this array but I can't do it by this way because I need to have var at the same level than path.
I want to work on my result to have this kind of value :
{ "final": [
{ "path": "/path/to/aa/x9999", "var": "aa" },
{ "path": "/path/to/bb/x9998", "var": "bb" },
{ "path": "/path/to/bb/x9997", "var": "bb" }
]
}
I Try a lot of things with set_fact but I don't find how to do this kind of work.
Thank a lot for your help :-)

Answer 1

The play below
- find:
paths: "/path/to/{{ item }}"
file_type: directory
recurse: yes
register: list
loop: [ aa, bb, cc, dd]
- set_fact:
pre_final: "{{ list.results|json_query('[].{path: files[].path,
var: item}') }}"
- set_fact:
final: "{{ final|default([]) + [{'var': item.0.var,
'path': item.1}] }}"
loop: "{{ lookup('subelements', pre_final, 'path') }}"
- debug:
var: final
gives (abridged):
"final": [
{
"path": "/path/to/aa/x9999",
"var": "aa"
},
{
"path": "/path/to/bb/x9997",
"var": "bb"
},
{
"path": "/path/to/bb/x9998",
"var": "bb"
}
]

Answer 2

I have found a way to do it. It's not lovelly but it's works.
I have to use the include_tasks module and the json_query given :
playbook.yml
---
- name: 'test of find'
hosts: localhost
vars:
loopVar:
- 'aa'
- 'bb'
- 'cc'
- 'dd'
tasks:
- name: 'find'
find:
path: '/path/to/{{item}}'
file_type: directory
patterns: '[^_]*[a-z]+[0-9]{4}[a-z]*$'
use_regex: yes
register: list
loop: '{{loopVar}}'
- set_fact:
all: '{{ list.results|json_query("[].{path: files[].path, var: item, matched: matched}") }}'
- include_tasks: 'inner.yml'
vars:
paths: '{{item.path}}'
var: '{{item.var}}'
loop: '{{all}}'
when: 'item.matched != 0'
- debug:
var: final
inner.yaml
---
- set_fact:
final: '{{ final|default([]) + [{ "path": path|basename, "var": var }] }}'
loop: '{{paths}}'
loop_control:
loop_var: path
Result:
[root#xxxx path]# ansible-playbook playbook.yml
PLAY [test of find] *********************************************************************************************************************************************************************************************************************
TASK [Gathering Facts] ******************************************************************************************************************************************************************************************************************
ok: [localhost]
TASK [find] *****************************************************************************************************************************************************************************************************************************
ok: [localhost] => (item=aa)
ok: [localhost] => (item=bb)
ok: [localhost] => (item=cc)
ok: [localhost] => (item=dd)
TASK [set_fact] *************************************************************************************************************************************************************************************************************************
ok: [localhost]
TASK [include_tasks] ********************************************************************************************************************************************************************************************************************
skipping: [localhost] => (item={'var': u'cc', 'path': [], 'matched': 0})
skipping: [localhost] => (item={'var': u'dd', 'path': [], 'matched': 0})
included: /mnt/hgfs/Documents/inner.yml for localhost => (item={'var': u'aa', 'path': [u'/path/to/aa/x9999'], 'matched': 1})
included: /mnt/hgfs/Documents/inner.yml for localhost => (item={'var': u'bb', 'path': [u'/path/to/bb/x9997', u'/path/to/bb/x9998'], 'matched': 2})
TASK [set_fact] *************************************************************************************************************************************************************************************************************************
ok: [localhost] => (item=/path/to/aa/x9999)
TASK [set_fact] *************************************************************************************************************************************************************************************************************************
ok: [localhost] => (item=/path/to/bb/x9997)
ok: [localhost] => (item=/path/to/bb/x9998)
TASK [debug] ****************************************************************************************************************************************************************************************************************************
ok: [localhost] => {
"final": [
{
"path": "x9999",
"var": "aa"
},
{
"path": "x9997",
"var": "bb"
},
{
"path": "x9998",
"var": "bb"
}
]
}
PLAY RECAP ******************************************************************************************************************************************************************************************************************************
localhost : ok=8 changed=0 unreachable=0 failed=0
I don't find a way to do it without use an external playbook.
If someone find a way, I'm happy to learn it :-)
Thank a lot.