= To create singularity image from Docker Official Salome images:

Supported Versions: 7.8.0 to 8.4.0 Supported Graphic card: nvidia, intelhd

• for 2.3.1 version:

DIST=$(docker run -it --rm trophime/salome-$VERSION:$TAG lsb_release -cs)
sudo singularity create --size 6144 ./salome-$VERSION-$DIST-$TAG.simg
sudo singularity --verbose import ./salome-$VERSION-$DIST-$TAG.simg docker://trophime/salome-$VERSION:$TAG

where VERSION and TAG respectively stand for Salome version and graphics driver.

• for 2.4.1 version and higher:

DIST=$(docker run -it --rm trophime/salome-$VERSION:$TAG lsb_release -cs)
sudo -E singularity -vvv build --force --notest [--writable] "./salome-$VERSION-$DIST-$TAG.simg" "./salome-docker.def"

Note: --writable is need for cesga

An alternative is to build the image using the Salome binairies, for details see recipe

sudo -E singularity -vvv build --force --notest [--writable] "./salome-$VERSION-$TAG.simg" "./stretch.def"

!! Watch out for kernel limitations when using latest Debian/Ubuntu releases !! (eg on cesga Ubuntu 18.04 LTS images won't run, same for Debian buster)

= Upload singularity image to cesga registry:

export SREGISTRY_CLIENT=registry
export SREGISTRY_CLIENT_SECRETS=~/.sregistry-cesga
[export SREGISTRY_STORAGE=...]

sregistry push --name hifimagnet/salome --tag 8.4.0 salome-8.4.0.simg 

= Download from cesga sregistry:

export SREGISTRY_CLIENT=registry
export SREGISTRY_CLIENT_SECRETS=~/.sregistry-cesga
[export SREGISTRY_STORAGE=...]

sregistry pull --name salome-8.4.0.simg hifimagnet/salome:8.4.0
[sregistry rename hifimagnet/salome:8.4.0 salome-8.4.0.simg]

On cesga, as sregistry is not installed you should instead use sregistry-cli image :

singularity run -B /mnt shub://sregistry.srv.cesga.es/mso4sc/sregistry pull hifimagnet/salome:8.4.0
singularity run -B /mnt shub://sregistry.srv.cesga.es/mso4sc/sregistry rename hifimagnet/salome:8.4.0 salome-8.4.0.simg 

Note that you may reveive somm warnings like that:

= Running singularity

singularity shell [--nv] "./salome-$VERSION-$DIST-$TAG.simg"

singularity run [--nv] "./salome-$VERSION-$DIST-$TAG.simg"

--nv option is only valid for 2.4.1 and later.

= TODO

• generate def file from requested version and os

• eventually build requested version is not available

• is graphic driver really needed with latest singularity version?

• build for previous singularity version

docker run --privileged -t --rm \
 -v $PWD:/tmp/salome \
 -v /home/LNCMI-G/trophime/Salome_Packages/:/home/LNCMI-G/trophime/Salome_Packages/ \
 singularityware/singularity:2.4  build [-w] /tmp/salome/salome-9.3.0-buster.simg /tmp/salome/buster-9.3.0.def

singularity run shub://sregistry.srv.cesga.es/mso4sc/sregistry:latest --quiet push --name hifimagnet/salome --tag 9.3.0 salome-9.3.0-buster.simg