This is a small collection of shell scripts that should allow running jupyter notebooks on Sunbird without much effort.

Preliminaries

Set up the SSH keys Set up your ssh key in advance. This may require using ssh-keygen to create a public-private key pair (if you haven't already) and ssh-copy-id to install the public key to sunbird.

For more detailed instructions, see the SSH keys guide.
Have your HOME created on the CDT storage Make sure your home directory on the cdt storage is created. This happens when you log in the first time on the CDT storage login node.
Use the CDT branch Make sure you check out the CDT branch, not master.

Notes on Windows

Make sure you have the latest version of Git Bash available.

Test your system first.

A bunch of tests to make sure that sunpyter can run correctly is contained in the script test.sh. Please run that first. If you encounter problems, look at the Troubleshooting section of this guide.

Usage

Run test.sh and please follow the messages on screen. Please report anything suspicious.
From a terminal (or Git Bash on Windows), use the command:
```
./sunpyter.sh  <your_username_on_sunbird>
```
Type the passphrase for your ssh key,
Wait
sunpyter will either open a browser window or give you a link that you can copy and paste in a browser.
Do what you need to do, but do not close the terminal yet.
At the end, to make sure that the resources on Sunbird are released, press Ctrl+C in the terminal window. Pressing the "Quit" button is also a good idea.
You can now close the terminal, if you want.

Troubleshooting

test.sh fails while testing being on the CDT branch Make sure you are not running test.sh on Sunbird. test.sh and sunpyter.sh must be run on your home machine.T
The script takes a long time "Waiting..." and nothing happens. It can take a couple of minutes. After that, you might have to ssh into sunbird and check the output of squeue -u $USER. Notice: you can have only one jupyter job running on Sunbird. If an old jupyter job of yours is still running, you will not be able to start a new one. Use scancel to kill the old one. Alternatively, you can run the tool
```
kill_remote_sunpyter_jobs.sh your-scw-username 
```
from your own computer, which will find all the remote jobs launched by sunpyter and terminates them.
I get ERROR: /cdt_storage/<my_username> does not exist. You need to log into the CDT storage log in node to have your home directory created first.
I get some other ERROR message and I am on Windows. Chances are that some scripts were modified when git downloaded them. Try
```
dos2unix remote_script.sh
```
and try again running sunpyter.
I get a "connection timed out" error Your IP might have been banned. If you have mistyped your password 3 times in a row, you may have been banned for 6 hours. If you have time, just wait. If you are in a hurry, you might ask us to manually unban your IP address. You can get your IP address on whatismyip.com, it's written right of My Public IPv4 is:
Any other problem Contact us!

Notes

Some more notes on the inner workings of sunpyter can be found in this guide.

Tested on: