Django Python - How to Build Docker Image and Run Web-service on Apache with Python 3.9

Introduction

So you have a Django project, and want to run it using docker image. We will run it on Apache and Python 3.9.

Make sure, you have a running Django project, before proceeding.

Parent Docker Image

First we will create a base image, where we will install following:

Apache
Python 3.9

FROM centos:7

USER root

RUN yum makecache fast \
    && yum -y install epel-release \
    && yum -y update \
    && yum groupinstall "Development Tools" -y \
    && yum install openssl-devel libffi-devel bzip2-devel -y \
    && yum install httpd httpd-devel mod_ssl wget -y \
    && yum clean all \
    && rm -rf /var/cache/yum

RUN wget https://www.python.org/ftp/python/3.9.10/Python-3.9.10.tgz \
    && tar xvf Python-3.9.10.tgz \
    && cd Python-3.9.10/ \
    && ./configure --prefix=/usr/local --enable-optimizations --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib" \
    && make altinstall \
    && python3.9 --version \
    && python3.9 -m pip install --upgrade pip \
    && pip3.9 install virtualenv

Build this image,

docker build -t django_base .

Django App Image

# Using multi-stage builds to avoid showing secrets in docker history
FROM python38_test as intermediate

WORKDIR /var/www/html/
COPY . /var/www/html/

RUN virtualenv env --python python3.9 \
    && source /var/www/html/env/bin/activate \
    && python3.9 -m pip install -r /var/www/html/requirements.txt \
    && python3.9 -m pip install mod_wsgi \
    && virtualenv env --python python3.9 \
    && source /var/www/html/env/bin/activate \
    && mod_wsgi-express install-module 

COPY ./docker/httpd.conf /etc/httpd/conf/httpd.conf
COPY ./docker/sites-enabled /etc/httpd/sites-enabled

ENV CONFIG "/var/www/html"
EXPOSE 8080
USER root

CMD  ["/usr/sbin/httpd","-D","FOREGROUND"]

Build this image.

Note, if you are installing pip modules from a private artifactory, See other post on How to securely create docker image

Run Django App

Now, just pass your required environment variables to your app and run. It will run on port 8080. You can use this image either on Kubernetes or regular docker run environment.

Thanks for reading