{"id":5278,"date":"2018-07-06T18:19:17","date_gmt":"2018-07-06T14:19:17","guid":{"rendered":"https:\/\/www.howtoforge.com\/tutorial\/docker-guide-dockerizing-python-django-application\/"},"modified":"2018-07-06T18:19:17","modified_gmt":"2018-07-06T14:19:17","slug":"docker-guide-dockerizing-python-django-application","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/docker-guide-dockerizing-python-django-application\/","title":{"rendered":"Docker Guide: Dockerizing Python Django Application"},"content":{"rendered":"

Docker is an open-source project that provides an open platform for developers and sysadmins to build, package, and run applications anywhere as a lightweight container. Docker automates the deployment of applications inside software containers.<\/p>\n

Django is a web application framework written in python that follows the MVC (Model-View-Controller) architecture. It is available for free and released under an open source license. It is fast and designed to help developers get their application online as quickly as possible.<\/p>\n

In this tutorial, I will show you step-by-step how to create a docker image for an existing Django application project in Ubuntu 16.04. We will learn about dockerizing\u00a0a python Django application, and then deploy the application as a container to the docker environment using a docker-compose script.<\/p>\n

In order to deploy our python Django application, we need additional docker images. We need an\u00a0nginx docker image for the web server and PostgreSQL image for the database.<\/p>\n

What we will do?<\/h2>\n
    \n
  1. Install Docker-ce<\/li>\n
  2. Install Docker-compose<\/li>\n
  3. Configure Project Environment<\/li>\n
  4. Build and Run<\/li>\n
  5. Testing<\/li>\n<\/ol>\n

    Step 1 – Install Docker-ce<\/h2>\n

    In this tutorial, we will install docker-ce community edition from the docker repository. We will install docker-ce community edition and docker-compose that support compose file version 3.<\/p>\n

    Before installing docker-ce, install docker dependencies needed using the apt command.<\/p>\n

    sudo apt install -y \\
    \u00a0\u00a0\u00a0 apt-transport-https \\
    \u00a0\u00a0\u00a0 ca-certificates \\
    \u00a0\u00a0\u00a0 curl \\
    \u00a0\u00a0\u00a0 software-properties-common<\/p>\n

    Now add the docker key and repository by running commands below.<\/p>\n

    curl -fsSL https:\/\/download.docker.com\/linux\/ubuntu\/gpg | sudo apt-key add –
    sudo add-apt-repository \\
    \u00a0\u00a0 “deb [arch=amd64] https:\/\/download.docker.com\/linux\/ubuntu \\
    \u00a0\u00a0 $(lsb_release -cs) \\
    \u00a0\u00a0 stable”<\/p>\n

    \"Install<\/a><\/p>\n

    Update the repository and install docker-ce.<\/p>\n

    sudo apt update
    sudo apt install -y docker-ce<\/p>\n

    After the installation is complete, start the docker service and enable it to launch every time at system boot.<\/p>\n

    systemctl start docker
    systemctl enable docker<\/p>\n

    Next, we will add a new user named ‘omar’ and add it to the docker group.<\/p>\n

    useradd -m -s \/bin\/bash omar
    usermod -a -G docker omar<\/p>\n

    \"Start<\/a><\/p>\n

    Login as the omar user and run docker command as shown below.<\/p>\n

    su – omar
    docker run hello-world<\/p>\n

    Make sure you get the hello-world message from Docker.<\/p>\n

    \"Check<\/a><\/p>\n

    Docker-ce installation has been completed.<\/p>\n

    Step 2 – Install Docker-compose<\/h2>\n

    In this tutorial, we will be using the latest docker-compose support for compose file version 3. We will install docker-compose manually.<\/p>\n

    Download the latest version of docker-compose using curl command to the ‘\/usr\/local\/bin’ directory and make it executable using chmod.<\/p>\n

    Run commands below.<\/p>\n

    sudo curl -L https:\/\/github.com\/docker\/compose\/releases\/download\/1.21.0\/docker-compose-$(uname -s)-$(uname -m) -o \/usr\/local\/bin\/docker-compose
    sudo chmod +x \/usr\/local\/bin\/docker-compose<\/p>\n

    Now check the docker-compose version.<\/p>\n

    docker-compose version<\/p>\n

    And make sure you get the latest version of the docker-compose 1.21.<\/p>\n

    \"Install<\/a><\/p>\n

    The docker-compose latest version that supports compose file version 3 has been installed.<\/p>\n

    Step 3 – Configure Project Environment<\/h2>\n

    In this step, we will configure the python Django project environment. We will create new directory ‘guide01’ and make it as the main directory for our project files, such as a Dockerfile, Django project, nginx configuration file etc.<\/p>\n

    Login to the ‘omar’ user.<\/p>\n

    su – omar<\/p>\n

    Create new directory ‘guide01’ and go to the directory.<\/p>\n

    mkdir -p guide01
    cd guide01\/<\/p>\n

    Now inside the ‘guide01’ directory, create new directories ‘project’ and ‘config’.<\/p>\n

    mkdir project\/ config\/<\/p>\n

    Note:<\/strong><\/p>\n