Ansible loop with multiple register value - automation

Question

would you please help me with this problem:
I have a playbook with multiple tasks and each tasks contains loop and register for the output of the task. Last task is going to use lineinfile to create a csv report based on the previous registers. something like below:
- name: information
module:
xxxx: xxxx
xxxx: xxxxx
loop:
- xxxx
- xxxx
register: task1_info
- name: information
module:
xxxx: xxxx
xxxx: xxxxx
loop:
- xxxx
- xxxx
register: task2_info
- name: information
lineinfile:
path: xxxx
line: "{{ item.tags.Name }}, {{ item.lastName }}"
loop:
- task1_info.results
- task2_info.results
if i use only one register at the end it is working, but not loop through all registers. the other option is to write a task after each register which I don't think reasonable!!

Answer 1

I understand your use case that you like to append one list to an other or to merge two lists.
To do so you could use an approach like
---
- hosts: localhost
become: false
gather_facts: false
vars:
LIST_1:
- 1
- 2
- 3
LIST_2:
- A
- B
- C
tasks:
- name: Info
debug:
msg: "{{ item }}"
loop: "{{ LIST_1 + LIST_2 }}"
loop_control:
extended: true
label: "{{ansible_loop.index0 }}"
resulting into an output of
TASK [Info] ******************
ok: [localhost] => (item=0) =>
msg: 1
ok: [localhost] => (item=1) =>
msg: 2
ok: [localhost] => (item=2) =>
msg: 3
ok: [localhost] => (item=3) =>
msg: A
ok: [localhost] => (item=4) =>
msg: B
ok: [localhost] => (item=5) =>
msg: C
Credits to
Append list variable to another list in Ansible
Further Q&A
Combine two lists in Ansible when one list could be empty
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