thumbnailer

A Python web app to make thumbnails, based on llibvips, the fast image processing library with low memory needs.

This app is based on Flask for the web service, Celery and RabbitMq for the task management. For production, the webapp should probably run on a WSGI server like gunicorn The Pyramid framework would be a more complete alternative to Flask.

Install on Linux

this has been tested on Ubuntu on WSL

sudo apt-get install gtk-doc-tools
sudo apt-get install gobject-introspection

build libvips from sources

git clone git://github.com/jcupitt/libvips.git
./autogen.sh
make
sudo make install

install RabbitMq

sudo apt-get install rabbitmq-server

create and activate virtual environment

pip install virtualenv
virtualenv venv
source venv/bin/activate

install the dependencies with the command

pip install -r requirements.txt

if pip is not available, try with

python -m pip <pip command>

Configuration

edit the file config.py pay attention especially to the variable UPLOAD_FOLDER

Run Celery workers

Workers can be started on several machines. On each machine several workers can be started.

Activate virtual env, if not already done

source venv/bin/activate

run Celery worker(s) with the following command

celery -A thumbnailerapp.services.tasks worker --loglevel=info

Run Flask web server

activate virtual env, if not already done

source venv/bin/activate

python run.py