Docker setup to start a Flask project.
(See "What's the difference between 'Shared' and 'Simple' tags?" in the FAQ.)
All images use the Debian Slim images from Python project as the source.
FROM pvital/docker_flask:latest
WORKDIR /usr/src/app
COPY . .
EXPOSE 5000
ENTRYPOINT ["python"]
CMD ["-m", "flask", "run", "--host=0.0.0.0"]You can then build and run the Docker image:
$ docker build -t <img_name>:[tag] .
$ docker run -it --rm -p 8080:5000 --name <app_name> <img_name>:[tag]where:
<img_name>is the name of the Docker image for your project.[tag]is an optional alias for this image. The default islatest.<app_name>specifies a name with which you can refer to your container in subsequent commands.
For many simple, single Flask projects, you may find it inconvenient to write a
complete Dockerfile. In such cases, you can run a Flask application by using
the docker_flask image directly:
$ docker run -it --rm \
-p 8080:5000 \
--mount type=bind,source="$PROJ_DIR",target=/app \
--name <app_name> \
pvital/docker_flask:latestwhere:
$PROJ_DIRis the path to the project directory.<app_name>specifies a name with which you can refer to your container in subsequent commands.
Now the Flask service is responding on port 8080 of your local host. Point your browser to http://127.0.0.1:8080/ and enjoy the magic. If you want the application to listen to a different port, substitute the number 8080 from the command above with the desired one.
If you want to run the Flask application in a daemonized mode, execute the
command with the -d argument:
$ docker run -d --rm \
-p 8080:5000 \
--mount type=bind,source="$PROJ_DIR",target=/app \
--name <app_name> \
pvital/docker_flask:latestTo terminate the execution, just type CTRL+C in the same console.