How to use --ask-become-pass with ansible 1.9.4

Question

I am a new user to ansible. I am attempting to use the privilege escalation feature to append a line to a file owned by root.

The following documentation tells me I can use --ask-become-pass with become_user to be prompted for the become_user password but I have no idea how to use it.

http://docs.ansible.com/ansible/become.html

My current code I am working with is as follows:

- name: Add deploy to sudoers
        remote_user: me
        become: yes
        become_method: su
        ask_become_pass: true
        lineinfile:
          dest=/etc/somefile
          line=sometext
          regexp="^sometext"
          owner=root
          state=present
          insertafter=EOF
          create=True

Which gives me the error: ERROR: ask_become_pass is not a legal parameter in an Ansible task or handler

Can anyone give me an idea of what I might be doing wrong here?

Thanks in advance.

Answer 1

The doc says that ask_become_pass is a command line parameter. Which means you have to use it while executing the playbook:

ansible-playbook *playbook-name* --ask-become-pass
In this case ansible will ask for the password.

The other option ansible_become_pass can be used in the inventory or also as an extra_var. There you can set the password while executing the playbook.