Fix: Django Debug Toolbar not showing when using with Docker.

option1.py

# YOU MAY WANT TO CHECK THIS OUT: https://github.com/douglasmiranda/ddpt/blob/master/{{cookiecutter.django_project_name}}/{{cookiecutter.django_project_name}}/config/local.py

# If you don't do this you will have to add the host IP in INTERNAL_IPS = ('127.0.0.1',)
# And it will change, then you will have to change INTERNAL_IPS again.

def show_toolbar(request):
    if request.is_ajax():
        return False
    return True

DEBUG_TOOLBAR_CONFIG = {
    'SHOW_TOOLBAR_CALLBACK': 'config.local.show_toolbar',
}

option2.py

# Depending on your requirements, you can do:
import socket
import os

hostname, _, ips = socket.gethostbyname_ex(socket.gethostname())
INTERNAL_IPS = [ip[:-1] + '1' for ip in ips] + ['127.0.0.1', '10.0.2.2']

Thanks!

Smaller one line version:

DEBUG_TOOLBAR_CONFIG = {
    'SHOW_TOOLBAR_CALLBACK': lambda request: False if request.is_ajax() else True,
}

This is everything you need to add to standard config. They should add it in Installation guide

Thank you matacoder. Your solution did the trick for me.

is_ajax appears to be deprecated in Django 3.1

Great thank u so much