Deploy Keras Model with Flask as Web App in 10 Minutes

A pretty and customizable web app to deploy your DL model with ease

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Getting started in 10 minutes

• Clone this repo
• Install requirements
• Run the script
• Check http://localhost:5000
• Done! 🎉

👇Screenshot:

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Docker Installation

Build and run an image for keras-application pretrained model

$ cd keras-flask-deploy-webapp
$ docker build -t keras_flask_app .
$ docker run -d -p 5000:5000 keras_flask_app 

Build and run an image from your model into the containeri.

After build an image as above, and

$ docker run -e MODEL_PATH=/mnt/models/your_model.h5  -v volume-name:/mnt/models -p 5000:5000 keras_flask_app

Pull an built-image from Docker hub

For your convenience, can just pull the image instead of building it.

$ docker pull physhik/keras-flask-app:2 
$ docker run -d -p 5000:5000 physhik/keras-flask-app:2

Open http://localhost:5000 after waiting for a minute to install in the container.

Local Installation

Clone the repo

$ git clone https://github.com/mtobeiyf/keras-flask-deploy-webapp.git

Install requirements

$ pip install -r requirements.txt

Make sure you have the following installed:

• tensorflow
• keras
• flask
• pillow
• h5py
• gevent

Run with Python

Python 2.7 or 3.5+ are supported and tested.

$ python app.py

Play

Open http://localhost:5000 and have fun. 😃

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Customization

Use your own model

Place your trained .h5 file saved by model.save() under models directory.

Check the commented code in app.py.

Use other pre-trained model

See Keras applications for more available models such as DenseNet, MobilNet, NASNet, etc.

Check this section in app.py.

UI Modification

Modify files in templates and static directory.

index.html for the UI and main.js for all the behaviors

Deployment

To deploy it for public use, you need to have a public linux server.

Run the app

Run the script and hide it in background with tmux or screen.

$ python app.py

You can also use gunicorn instead of gevent

$ gunicorn -b 127.0.0.1:5000 app:app

More deployment options, check here

Set up Nginx

To redirect the traffic to your local app. Configure your Nginx .conf file.

server {
    listen  80;

    client_max_body_size 20M;

    location / {
        proxy_pass http://127.0.0.1:5000;
    }
}

More resources

Check Siraj's "How to Deploy a Keras Model to Production" video. The corresponding repo.

Building a simple Keras + deep learning REST API