How to tell Ansible to get permissions via sudo?

Question

Ansible

Hello. I understand with Ansible, I decided to start by creating a service user, which he will use to go to the servers. Because doing it manually is tedious and illogical, wrote the playbook:

---
- hosts: myservers                                                                                                                                                 
  remote_user: myuser
  become: yes 
  become_user: myuser
  become_method: sudo
  tasks:
  - name: create ansible user
    user: 
      name: ansible 
      shell: /bin/bash 
      home: /home/ansible 

  - name: copy ssh pubkey to home directory
    authorized_key: 
      user: ansible 
      key: "{{ lookup('file', './ansible_pubkey') }}"
  
  - name: adding ansible user to sudoers
    lineinfile: 
      dest: /etc/sudoers 
      line: "ansible ALL=(ALL)       NOPASSWD: ALL" 
      validate: 'visudo -cf %s'

The idea is to run the execution as a private user with password access. All servers have my admin account myuser, which has sudo privileges.
I start the execution of the playbook'a like this:
ansible-playbook -i hosts add-ansible-user.yml -k
To which I get the answer:

TASK [create ansible user] *****************************************************
fatal: [myserver]: FAILED! => {"changed": false, "cmd": "/sbin/useradd -d /home/ansible -s /bin/bash -m ansible", "failed": true, "msg": "[Errno 13] Отказано в доступе", "rc": 13}

Those. Ansible gets to the server via ssh, but cannot execute the task due to insufficient rights. Locally sudo works correctly. Ansible version 2.0.1.0.
What am I doing wrong?

Answer 1

Solved, helped on another resource. From off documentation:

become_user set to user with desired privileges, the user you 'become', NOT the user you login as. Does NOT imply become: yes, to allow it to be set at host level.

become_user specifies the user whose rights you want to get through sudo, respectively, you had to specify root'a, not myuser.