Hi Vladimir,
Thanks . It helps to learn a lot.
Any recommended link to learn the jinja2 formatting?.
in btw, the "cols" are printed as like below (not as [green, red, yellow,
blue]).
is there ansible/jinja version conflict or I miss a bit?
- name: playbook to print the list as table
hosts: localhost
vars:
color:
- green
- red
- yellow
- blue
cities:
- toronto
- montreal
- mumbai
- dubai
lang:
- English
- French
- Hindi
- Arabic
fnames: [color, cities, lang]
cols: |
{% filter from_yaml %}
{% for i in fnames %}
- {{ lookup('vars', i ) }}
{% endfor %}
{% endfilter %}
max: "{{ cols|map('map', 'length')|map('max') }}"
frmt: |
{% filter from_yaml %}
{% for i in max %}
- '%-{{ i }}s '
{% endfor %}
{% endfilter %}
tasks:
- name: print the cols
ansible.builtin.debug:
msg: "{{cols}}"
- name: print the max
ansible.builtin.debug:
msg: "{{max}}"
- name: print the frmt
ansible.builtin.debug:
msg: "{{frmt}}"
- set_fact:
rows: "{{ rows|d(cols.0)|zip(item)|map('flatten') }}"
loop: "{{ cols[1:] }}"
- name: print the frmt
ansible.builtin.debug:
msg: "{{rows}}"
And the output is as below
PLAY [playbook to print the list as table]
********************************************************************************************
TASK [Gathering Facts]
****************************************************************************************************************
Friday 20 October 2023 18:24:15 +0300 (0:00:00.036) 0:00:00.036
********
ok: [localhost]
TASK [print the cols]
*****************************************************************************************************************
Friday 20 October 2023 18:24:18 +0300 (0:00:02.702) 0:00:02.738
********
ok: [localhost] => {
"msg": [
[
"green",
"red",
"yellow",
"blue"
],
[
"toronto",
"montreal",
"mumbai",
"dubai"
],
[
"English",
"French",
"Hindi",
"Arabic"
]
]
}
TASK [print the max]
******************************************************************************************************************
Friday 20 October 2023 18:24:18 +0300 (0:00:00.125) 0:00:02.863
********
ok: [localhost] => {
"msg": [
6,
8,
7
]
}
TASK [print the frmt]
*****************************************************************************************************************
Friday 20 October 2023 18:24:18 +0300 (0:00:00.109) 0:00:02.973
********
ok: [localhost] => {
"msg": [
"%-6s ",
"%-8s ",
"%-7s "
]
}
TASK [set_fact]
***********************************************************************************************************************
Friday 20 October 2023 18:24:18 +0300 (0:00:00.111) 0:00:03.085
********
ok: [localhost] => (item=['toronto', 'montreal', 'mumbai', 'dubai'])
ok: [localhost] => (item=['English', 'French', 'Hindi', 'Arabic'])
TASK [print the frmt]
*****************************************************************************************************************
Friday 20 October 2023 18:24:18 +0300 (0:00:00.075) 0:00:03.161
********
ok: [localhost] => {
"msg": [
[
"green",
"toronto",
"English"
],
[
"red",
"montreal",
"French"
],
[
"yellow",
"mumbai",
"Hindi"
],
[
"blue",
"dubai",
"Arabic"
]
]
}
PLAY RECAP
****************************************************************************************************************************
localhost : ok=6 changed=0 unreachable=0 failed=0
skipped=0 rescued=0 ignored=0
#
#
#ansible --version
ansible [core 2.13.11]
config file = /home/user/ansible/test-snippets/ansible.cfg
configured module search path = ['/home/user/.ansible/plugins/modules',
'/usr/share/ansible/plugins/modules']
ansible python module location =
/home/user/ansible/kube-ansible/lib/python3.8/site-packages/ansible
ansible collection location =
/home/user/.ansible/collections:/usr/share/ansible/collections
executable location = /home/user/ansible/kube-ansible/bin/ansible
python version = 3.8.10 (default, May 26 2023, 14:05:08) [GCC 9.4.0]
jinja version = 3.1.2
libyaml = True
On Friday, October 20, 2023 at 7:55:34 PM UTC+5:30 Abhijeet Janwalkar wrote:
> Hi Vladimir,
>
> I am really interested in learning how you provide such code.
> From where can I learn more?
>
> Warm regards,
> Abhi
>
> On Fri, 20 Oct 2023, 16:08 Vladimir Botka <[email protected]> wrote:
>
>> Declare the list of columns
>>
>> fnames: [color, cities, lang]
>>
>> and get the columns
>>
>> cols: |
>> {% filter from_yaml %}
>> {% for i in fnames %}
>> - {{ lookup('vars', i ) }}
>> {% endfor %}
>> {% endfilter %}
>>
>> gives
>>
>> cols:
>> - [green, red, yellow, blue]
>> - [toronto, montreal, mumbai, dubai]
>> - [English, French, Hindi, Arabic]
>>
>> Find the maximal lengths
>>
>> max: "{{ cols|map('map', 'length')|map('max') }}"
>>
>> gives
>>
>> max: [6, 8, 7]
>>
>> and create the list of formats
>>
>> frmt: |
>> {% filter from_yaml %}
>> {% for i in max %}
>> - '%-{{ i }}s '
>> {% endfor %}
>> {% endfilter %}
>>
>> gives
>>
>> frmt: ['%-6s ', '%-8s ', '%-7s ']
>>
>> Get the rows
>>
>> - set_fact:
>> rows: "{{ rows|d(cols.0)|zip(item)|map('flatten') }}"
>> loop: "{{ cols[1:] }}"
>>
>> gives
>>
>> rows:
>> - [green, toronto, English]
>> - [red, montreal, French]
>> - [yellow, mumbai, Hindi]
>> - [blue, dubai, Arabic]
>>
>> and write the table
>>
>> - debug:
>> msg: |
>> {% for i in range(fnames|length) %}
>> {{ frmt[i] % fnames[i] }}{% endfor %}
>>
>> {% for j in rows %}
>> {% for i in range(fnames|length) %}
>> {{ frmt[i] % j[i] }}{% endfor %}
>>
>> {% endfor %}
>>
>> gives
>>
>> msg: |-
>> color cities lang
>> green toronto English
>> red montreal French
>> yellow mumbai Hindi
>> blue dubai Arabic
>>
>> --
>> Vladimir Botka
>>
>> --
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>> .
>>
>
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