testprovider/oidcprovider/templates/account/logout.html

{% extends "site_base.html" %}

{% block body %}
<h1 class="my-5">Logout</h1>

<form method="post" action="{% url "account_logout" %}">
  {% csrf_token %}
  <p>Are you sure you want to log out?</p>
  <button class="btn btn-primary"type="submit">Log out</button>
</form>
{% endblock body %}