Patches and Singularity Recipe files for building the UC2 container

This repo contains work related to containerising software components of PROCESS use case 2 (UC#2), essentially composed of Singularity recipe files and patches for fixing issues or adding features into those components.

Patches

remotecommand.patch is a patch to the eponym file in the LOFAR genericpipeline.py which allows to run some tasks from the container in a distributed fashio using SSH

Singularity recipe files

There are three groups of recipe files:

• The first group contains lofarbase.def, lofar.def, factor.def and uc2-factor.def. In order to build the UC2 Singularity container, they need to used successuvely in this order, each step using the output of the previous step. First, lofarbase.def is used to generate a container image base.sif via the command sudo singularity build lbase.sif lofarbase.def. Then, lofar.def is used to generate a container image lofar.sif via the command sudo singularity build lofar.sif lofar.def. etc.
• The second group is composed of only uc2.def which performs all the work achieved by above files in one go using the sudo singularity build uc2.sif uc2.def.
• The last group is composed of ddf3t.def and lofar-2.def. The former uses the container image built from the latter to construct a UC2 container image with DDF as direction-dependent calibration software, instead of FACTOR.