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December 30, 2015 22:29
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launch a ipython notebook server via bsub, then open automatically chain a tunnel to the host
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#!/usr/bin/env python | |
import subprocess | |
import time | |
import re | |
import os | |
import sys | |
# launch the server and get the jobid | |
ipy_notebook_command = ['bsub', '-q short', '-W 720', 'ipython notebook --pylab'] | |
p = subprocess.Popen(ipy_notebook_command, stdout=subprocess.PIPE) | |
out, err = p.communicate() | |
print out | |
job_id = out.split('<')[1].split('>')[0] | |
# use bjobs to get the node the server is running on | |
server = None | |
print 'querying queue for job info.', | |
while server is None: | |
bjob_command = ['bjobs', '-l', job_id] | |
p = subprocess.Popen(bjob_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE) | |
out, err = p.communicate() | |
if err is not None: | |
print '.', | |
sys.stdout.flush() | |
m = re.search('Started on <(.*)>', out) | |
try: | |
server = m.groups()[0] | |
except AttributeError: | |
time.sleep(1) | |
# launch ssh to connect to the node with a tunnel | |
print '' | |
print 'server launched on '+server+', opening ssh connection with tunnel.' | |
os.system('ssh -L 8888:127.0.0.1:8888 '+server) # using os.system to fork | |
# when we exit the ssh connection, kill the server | |
bkill_command = ['bkill', job_id] | |
p = subprocess.Popen(bkill_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE) | |
out, err = p.communicate() | |
print out |
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