Work with a remote AWS instance
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(see http://www.datasciencebytes.com/bytes/2015/12/18/using-jupyter-notebooks-securely-on-remote-linux-machines/)

Define host
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This step allows to define an alias to the remote instance and connect to it more easily:
$ ssh tmpaws

Copy-paste what follows in '/path/to/.ssh/config':

Host tmpaws
    HostName your-remote-machine-public-dns
    User ubuntu
    IdentityFile /home/nath/ssh-keys/AAA.pem

Run the pipeline
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Run the successive steps of the processing pipeline:

fab -f /path/to/python/fabfile.py -H ubuntu@$REMOTEHOST -i $SSHKEYS  prepare:configstring='default'

Forward ssh to connect remote notebook
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ssh -NL 8157:localhost:8888 tmpaws