Deploying in a Docker Container

Building a Docker Image

A Docker image for running EMhub can be created with the following dockerfile:

FROM python:3.8

LABEL description="Python 3.8 based image to run emhub application"
LABEL maintainer="J.M. de la Rosa Trevin delarosatrevin@gmail.com"

ENV EMHUB_INSTANCE /emhub-data/emhub-instance

RUN pip install emhub
RUN groupadd -g 2000 hubby && useradd -m -u 2000 -g hubby hubby

USER hubby
CMD [ "gunicorn", "-k", "gevent", "--workers=4", "emhub:create_app()", "--bind", "0.0.0.0:8080" ]

Running the Container

After saving the file above as Dockerfile, run:

# Building the image
docker build . -t emhub --no-cache


# Checking that the new emhub image was created
docker images ls


# Running the application, mapping the port from the container to
# the host machine and mapping a volume containing the instance data folder
docker run -d --rm -p 127.0.0.1:8080:8080 --name=emhub -v /home/hubby/emhub-data/:/emhub-data emhub:latest

# Check the container is running properly
docker ps

# Checking logs
docker logs emhub

# Stopping the app
docker stop emhub