singularity build example

02-singularity.md

@@ -109,6 +109,46 @@ PYTHONNOUSERSITE=1
 export PYTHONNOUSERSITE
 ```
 
+## Full example output on the gpulab
+```
+[tru@adm pythonnet]$ wget https://gitlab.pasteur.fr/tru/conda-container-howto/-/
+raw/main/Singularity
+--2021-09-23 14:06:00--  https://gitlab.pasteur.fr/tru/conda-container-howto/-/raw/main/Singularity
+Resolving gitlab.pasteur.fr (gitlab.pasteur.fr)... 157.99.21.44
+Connecting to gitlab.pasteur.fr (gitlab.pasteur.fr)|157.99.21.44|:443... connected.
+HTTP request sent, awaiting response... 200 OK
+Length: 769 [text/plain]
+Saving to: ‘Singularity’
+
+100%[======================================>] 769         --.-K/s   in 0s
+
+2021-09-23 14:06:00 (115 MB/s) - ‘Singularity’ saved [769/769]
+
+[tru@adm pythonnet]$ sudo singularity build b.sif Singularity                   INFO:    Starting build...
+Getting image source signatures
+Copying blob 2d473b07cdd5 [--------------------------------------] 0.0b / 0.0b
+Copying config 6d42e44a9f done
+Writing manifest to image destination
+<...>
+#
+# To activate this environment, use
+#
+#     $ conda activate pythonnet
+#
+# To deactivate an active environment, use
+#
+#     $ conda deactivate
+
+INFO:    Adding environment to container
+INFO:    Creating SIF file...
+INFO:    Build complete: b.sif
+[tru@adm pythonnet]$ ./b.sif 
+Singularity> eval "$(conda shell.bash hook)"
+(base) Singularity> conda activate pythonnet
+(pythonnet) Singularity> python -c 'import clr'
+(pythonnet) Singularity> 
+```
+Now you just need to distribute your container... to whoever/wherever.
 
 ## Caveats
 - adding to base and adding a new pythonnet env are different things...