Simple Flask Dockerizer
Settings to create a Docker image for a simple Flask project. This project has been created for a tutorial described on Kalimadev Blog.
Build Docker Container
docker build -t simple_flask .
The Docker file creates a container starting from Ubuntu 14.04:
then it installs Python:
RUN apt-get install -y -q build-essential python-gdal python-simplejson RUN apt-get install -y python python-pip wget RUN apt-get install -y python-dev
and finally creates a virtual environment:
RUN pip install virtualenv
Required Python projects are installed through
pip in the virtual environment straight from GitHub by setting
the repositories URL in the
watchdog Flask flask-cors https://github.com/Kalimaha/simple_flask/archive/master.zip https://github.com/Kalimaha/simple_flask_blueprint/archive/master.zip
List Docker Images
|REPOSITORY||TAG||IMAGE ID||CREATED||VIRTUAL SIZE|
|simple_flask||latest||b5dc209bf592||5 minutes ago||503 MB|
Run Docker Container
docker run -it -p 5000:5000 simple_flask /deployment/env/bin/python /deployment/start.py
This command executes the simple Python script contained in the project to import the main Flask app and run it:
from simple_flask.rest import rest as rest_engine rest_engine.run_engine('0.0.0.0')
host has been set to
0.0.0.0 in order to work with Docker.
Access the Application
The application is now up and running and it is possible to access it through the browser at:
Hello Kalimaha from CORE!
The app has a blueprint that can be accessed at: