Basics of Singularity Def File
==============================

[20200710]

Definitive guide (the doc):

https://sylabs.io/guides/3.5/user-guide/definition_files.html



"Bootstrap" keyword
-------------------

Defines how we get the starting image

* `library`: on Sylab Cloud container library
* `docker`: Docker Hub
  See: <https://sylabs.io/guides/3.5/user-guide/appendix.html#build-docker-module>

See: <https://sylabs.io/guides/3.5/user-guide/definition_files.html#preferred-bootstrap-agents>


https://cloud.sylabs.io/library