mjansche/openfst repository overview

⁠OpenFst Docker images

OpenFst (www.openfst.org⁠) is a library for constructing, combining, optimizing, and searching weighted finite-state transducers (FSTs).

The OpenFst Docker images (https://hub.docker.com/repository/docker/mjansche/openfst⁠) contain builds of OpenFst on top of two different Linux distributions.

⁠Ubuntu

The full Ubuntu-based image is built on top of ubuntu:latest, which is currently 20.04 Focal. It contains a build of the OpenFst dynamic library and headers, the command-line binaries, the Python module, and all extensions, including dynamically loadable shared object files for all specialized FST types defined in OpenFst.

The Python module has been built for the default version of Python (currently 3.8) in the Ubuntu base image. The OpenFst image does not include Python itself. It can be installed with apt update && apt install -y python3 libpython3.8. Once Python 3.8 is installed, the OpenFst Python module can then be loaded with import pywrapfst.

⁠Alpine

The smaller Alpine-based image is built on top of alpine:latest. It contains a build of the OpenFst dynamic library and headers, the command-line binaries, the Python module, and the minimally needed extensions for compiling several OpenGrm packages (Ngram and Thrax, in particular). It does not contain dynamically loadable shared object files for any of the specialized FST types. The resulting OpenFst image is very lightweight and can be used as the base image for developing with OpenFst.

The Python module has been built for the default version of Python (currently 3.8) in the Alpine base image. The OpenFst image does not include Python itself. It can be installed with apk add python3. Once Python 3.8 is installed, the OpenFst Python module can then be loaded with import pywrapfst.