Arvados

A frequent use case we are facing is uploading data from hosts:

1) without a Python installation,
2) where we have no root access
3) and which might have IP-based access to NFS or Samba resources but do not give rights to mount those resources to regular users.

Having a single standalone binary that could be transferred to such a host and used for Arvados uploads is desired because:
- it is time-consuming and bothersome to install Python, arvados-api-client and arvados certificates and/or modify httplib2 not to verify the certificates every time we need to upload something from a new host

The upload directly from those hosts is desired because:
- when working remotely and using e.g. Cyberduck to transfer data from a Samba share to Arvados' Webdav, the entire dataset which can range anywhere from GBs to TBs has to go via our private Internet connection
- UDP tunneling through SSH is complicated but (sometimes) needed for NFS/Samba

Pure Golang building blocks for accessing NFS and Samba seem to be there:
https://github.com/vmware/go-nfs-client
https://godoc.org/github.com/hirochachacha/go-smb2

There is also the Go SDK for Arvados.

It should be a matter of pulling those together to offer a single standalone binary alternative to arv-put that would support:

- upload of local files/directories
- upload of Samba files/directories
- upload of NFS files/directories
- creating (in the specified project) or updating existing collections

I think such a tool would be great. Again - just a private opinion.