Writing COG to S3?

[rsignell-usgs]

A colleague asked me how to write COG to S3 from xarray, and I got something working using fsspec simplecache:
https://nbviewer.jupyter.org/gist/rsignell-usgs/3472ca07779ded81833a0cd3deb24cf9

but I'm wondering if:

• there is a better way (a best practice!) to do this?
• if yes, whether that best practice might be worth demonstrating in a notebook?
• (of course it wouldn't work in general -- folks would need to supply their own bucket and credentials, but might still be useful)?

[scottyhq]

thanks @rsignell-usgs definitely would welcome a notebook on writing COGs here! Looking quickly at your notebook I see
"we just basically writing to local disk then pushing to S3". It's definitely possible to upload from memory directly to S3... I don't have an example on hand, but should document the two approaches.