Create Django super user in ansible

changepassword.sh.j2

#!/usr/bin/expect

set timeout -1;
spawn {{django_dir}}/venv/bin/python manage.py changepassword {{admin_user}};
expect {
    "Password:" { exp_send "{{admin_pass}}\r" ; exp_continue }
    "Password (again):" { exp_send "{{admin_pass}}\r" ; exp_continue }
    eof
}

playbook.yml

---
# other tasks ...
- name: super user existed?
  command: echo "from django.contrib.auth import get_user_model; User = get_user_model(); print(User.objects.filter(username='{{fota_admin_user}}').count()>0)" | {{ django_dir }}/venv/bin/python ./manage.py shell
  args:
    chdir: "{{django_dir}}"
  environment:
    DJANGO_SETTINGS_MODULE: "{{settings}}"
  register: superuser_existed
- name: Create super user
  django_manage: command="createsuperuser --noinput --username={{admin_user}} --email={{admin_email}}"
                 app_path={{django_dir}}
                 virtualenv={{django_dir}}/venv
                 settings={{settings}}
  when: not superuser_existed
- name: Change password tricks
  template: src=changepassword.sh.j2 dest={{django_dir}}/changepassword.sh mode=0755
- name: Change password
  command: "{{django_dir}}/changepassword.sh"
  args:
    chdir: "{{django_dir}}"
  environment:
    DJANGO_SETTINGS_MODULE: "{{settings}}"
- name: remove changepassword.sh
  file: path="{{django_dir}}/changepassword.sh" state=absent

vars.sh

django_dir: /webapp/djangoapp
settings: djangoapp.settings
admin_user: admin
admin_email: admin@example.com
admin_pass: PLEASE_MODIFY_ME

I ended up with this:

# check if superuser user exists, if not, create user.
- name: Check if superuser user exists, if not, create user.
  django_manage:
    command: shell -c "from django.contrib.auth import get_user_model; MyUser = get_user_model(); MyUser.objects.filter( username__exact = '{{ django_superuser_username }}' ).count() == 0 or exit(); new_super_user = MyUser( username = '{{ django_superuser_username }}', password='{{ django_superuser_password }}', email='{{ django_superuser_email }}', is_superuser = True, is_staff = True ); new_super_user.save();"
    app_path: "{{ django_project_folder_path }}"
    virtualenv: "{{ django_virtualenv_path }}"

And it worked, where the following did not (it never returned False that the user did not exist, so never created the user).

# check if superuser user exists.
- name: super user {{ django_superuser_username }} exists?
  command: echo "from django.contrib.auth import get_user_model; User = get_user_model(); print(User.objects.filter(username='{{ django_superuser_username }}').count()>0)" | {{ django_virtualenv_bin_path }}/python ./manage.py shell -i python
  args:
    chdir: "{{ django_project_folder_path }}"
  environment:
    DJANGO_SETTINGS_MODULE: "{{ django_settings_import }}"
  register: superuser_existed

# if no super user, create.
- name: If no super user {{ django_superuser_username }}, create super user
  django_manage:
    command: "createsuperuser --noinput --username={{ django_superuser_username }} --email={{ admin_email }}"
    app_path: "{{ django_project_folder_path }}"
    virtualenv: "{{ django_virtualenv_path }}"
    settings: "{{ django_settings_import }}"
  when: not superuser_existed

I left in the change of password, so it would update even if user already existed.

I probably did something wrong, but I prefer the shell command approach, anyway, since it keeps all the logic together, doesn't depend on the output of "manage.py shell", which I think could change depending on ipython, bpython, or python.

Slight modification to @jonathanmorgan's approach that worked for me:

  django_manage:
    command: shell -c "from django.contrib.auth.hashers import make_password; from django.contrib.auth import get_user_model; MyUser = get_user_model(); MyUser.objects.filter( username__exact = '{{ admin_user }}' ).count() == 0 or exit(); new_super_user = MyUser( username = '{{ admin_user }}', email='{{ admin_email }}', is_superuser = True, is_staff = True ); new_super_user.password = make_password('{{ admin_pass }}'); new_super_user.save();"
    app_path: "{{ project_path }}"
    virtualenv: "{{ virtualenv_path }}"