[Answer]-Include template form to django admin

Well , Its not possible . But you can implement like this :

You should create file called admin_views.py in your app customer.

Then add url in your urls.py like

(r'^admin/customer/customerView/$', 'myapp.customer.admin_views.customerView'),

Write your view implementation inside admin_views.py like :

from myapp.customer.models import Customer
from django.template import RequestContext
from django.shortcuts import render_to_response
from django.contrib.admin.views.decorators import staff_member_required


def customerView(request):
    return render_to_response(
        "admin/customer/template.html",
        {'custom_context' : {}},
        RequestContext(request, {}),
    )
customerView = staff_member_required(customerView)

And inside your admin template extend base_site.html like this one :

{% extends "admin/base_site.html" %}

{% block title %}Custmer admin view{% endblock %}

{% block content %}
<div id="content-main">
     your content from context or static / dynamic...
</div>
{% endblock %}

Thats it . hit that new url after admin login . Note Not Tested .