Singularity is a utility that can run containers without requiring any elevated privileges.
Cheat sheet[edit | edit source]
|Pulling images from docker hub|
|Running a container|
|Exec a command instead of runscript|
Tasks[edit | edit source]
Pulling docker images[edit | edit source]
singularity pull pulls from:
Images that are pulled will be saved as a
.sif file. If a tag was provided, the tag will be part of the output filename.
Building singularity image from Dockerfile[edit | edit source]
You cannot build Dockerfiles in Singularity. Instead, you will need to build the image using Docker and then convert it to a Singularity image.
# docker build -f Dockerfile-jupyter-plotly -t jupyter/scipy-notebook-plotly . # docker images REPOSITORY TAG IMAGE ID CREATED SIZE jupyter/scipy-notebook-plotly latest a8f13623a91f 8 minutes ago 3.21GB # singularity build /tmp/jupyter-plotly.sif docker-daemon://jupyter/scipy-notebook-plotly:latest
If you don't have Singularity installed, you can also use the Singularity docker image:
# docker pull quay.io/singularity/singularity # docker run --rm -ti -v /tmp:/tmp quay.io/singularity/singularity \ build /tmp/jupyter-plotly.sif docker-daemon://jupyter/scipy-notebook-plotly:latest
Once Singularity build completes, you should end up with a .sif singularity image.
See Also[edit | edit source]