Django Docker Image Works on Local Machine but Shows 'Page Not Found' on AWS EC2

Docker Desktop
, ,
1

Hello Docker Community,

I have a Django-based project that I containerized using Docker and Docker Compose. The Docker image works perfectly on my local machine (Docker Desktop), but when I deploy the same image on an AWS EC2 instance, I encounter a “Page Not Found” error when trying to access it through the public IP.

Here are the steps I’ve followed so far:

  1. Project Setup:
  • The project is a Django application, and I used Docker to containerize it.
  • I used a docker-compose.yml file to set up the application along with MySQL.
  1. Working on Local Machine:
  • On Docker Desktop, the project works as expected, and I can access it via http://localhost:8000.
  1. AWS EC2 Setup:
  • I deployed the same Docker image on an AWS EC2 instance (Ubuntu server) using Docker and Docker Compose.
  • The container starts successfully, but when I try to access it via the EC2 public IP (e.g., http://<public-ip>:8000), I get a “Page Not Found” error.
  1. Things I Have Checked:
  • Docker Port Mapping: I have used the -p flag in the Docker Compose file to map the necessary ports (e.g., 8000:8000).
  • Django Settings: I updated the ALLOWED_HOSTS in Django’s settings.py to include the EC2 public IP (e.g., ALLOWED_HOSTS = ['<public-ip>', 'localhost']).
  • Security Groups: I confirmed that my EC2 security group allows inbound traffic on port 8000.
  • Application Logs: The logs don’t show any errors, and the container is running fine, indicating that the Django application inside the container is starting without issues.
  1. Docker Compose and Dockerfile:

docker-compose.yml:

version: '3.8'
services:
  mysql:
    image: mysql:8.0
    environment:
      MYSQL_ROOT_PASSWORD: root
      MYSQL_DATABASE: myproject
    ports:
      - "3306:3306"
    networks:
      - app-network

  app:
    build: .
    environment:
      DATABASE_HOST: mysql
      DATABASE_USER: root
      DATABASE_PASSWORD: root
      DATABASE_NAME: myproject
    ports:
      - "8000:8000"
    depends_on:
      - mysql
    networks:
      - app-network
    command: >
      sh -c "
        python manage.py migrate &&
        python manage.py collectstatic --noinput &&
        python manage.py runserver 0.0.0.0:8000
      "

networks:
  app-network:
    driver: bridge

Dockerfile:

FROM python:3.12-slim

WORKDIR /app

RUN apt-get clean && \
    rm -rf /var/lib/apt/lists/* && \
    apt-get update --fix-missing && \
    apt-get upgrade -y && \
    apt-get install -y \
        pkg-config \
        default-libmysqlclient-dev \
        libssl-dev \
        libc6-dev \
        gcc \
        python3-dev && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

RUN apt-get update && apt-get install -y \
    default-libmysqlclient-dev \
    gcc \
    && pip install numpy \
    && pip install mysqlclient pikepdf

RUN apt-get install -y ca-certificates

RUN pip install Pillow==10.4.0

RUN pip install cryptography h5py

COPY requirements.txt /app/

RUN pip install --upgrade pip

RUN pip install django-extensions

RUN pip install --no-cache-dir -r requirements.txt

COPY . /app/
  1. What I Need Help With:
  • Why does the application work on my local Docker desktop environment but not on AWS EC2?
  • What could be causing the “Page Not Found” error when accessing the app via the public IP on EC2?
  • Are there any additional configuration settings I may have missed, such as networking, environment variables, or Docker Compose configuration?

I would greatly appreciate any insights or suggestions to resolve this issue.

Thank you in advance for your help!

2

Try deploying a simple (echo) service like traefik/whoami to see if it’s an issue with AWS or Django.

3

still getting error

Page not found (404)

|Request Method:|GET|

Request URL:http://:8000/
Raised by: accounts.views.home

4

This topic was automatically closed 10 days after the last reply. New replies are no longer allowed.