The landsat notebook does not work: gdal installation problem

[guillaumeeb]

Same issue as pangeo-data/pangeo-tutorial#14. Just opening it here too to remember fixing it there also.

It seems the Docker image built from this repo does not have rasterio/gdal correctly installed. This result with an error when importing rasterio, saying that libgdal is missing.

I believe that the fix may not be too hard, I encountered this today when running a tutorial at a french lab. Did not have time to investigate yet, we may just need to update the repotodocker build, or point to common Pangeo images.