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A simple Dash application exploring the West African EBOV outbreak. Companion app to my blog post on deploying Dash apps onto AWS ECS.
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Dash demo: W African EBOV Outbreak

A Dash application to explore the UN Humanitarian Data Exchange (HDX) data on the West African Ebola outbreak. Made as a simple app to demonstrate deploying Dash apps using Docker on AWS's Elastic Container Service (ECS).

This repo was created to accompany the Medium article on deploying dockerised Dash apps on AWS.

Local development

  1. Create a Python venv with a >=3.6 interpreter.

  2. Activate venv (source <venv path>/bin/activate).

  3. Install Python dependencies using pip3 install -r requirements.txt.

  4. Run the server using python3

Running locally

To run a local instance, the easiest way is to build the Docker image:

  1. Build the image using docker build -t ebov-dash ..

  2. Run the image using docker run -p 80:8080 ebov-dash:latest.

  3. Use your browser to navigate to to view the application.

Deploying onto AWS FARGATE

When making changes, you need to rebuild the Docker image and push it to AWS ECR, then re-deploy.

  1. Run $(aws ecr get-login --no-include-email --region eu-central-1) to authenticate your shell.

  2. Build the image using docker build -t ebov-dash ..

  3. Tag the image using docker tag ebov-dash:latest <your account id>.dkr.ecr.<your AWS region>

  4. Push the image to AWS ECR using docker push <your account id>.dkr.ecr.<your AWS region>

  5. Create a new FARGATE instance or update the running FARGATE instance with the Update button at the EBOV Dash ECS page.

When deploying onto a new server, 1 vCPU and 2GB memory are the absolute minimum necessary for decent operation. More is better, as quite a bit of data related calculations are run in the background.

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