Setting up kippo on Raspberry Pi

Downloading Kippo

1. Download tarball from Google code.

wget https://code.google.com/p/kippo/downloads/detail?name=kippo-0.8.tar.gz

2. In my case most of the traffic was attempting a sftp connection. The version of kippo that I acquired from Google code didn't handle sftp so I found a fork on github.

git clone https://github.com/micheloosterhof/kippo

This version ran extremely slow on the raspberry pi.

Diagnosing problems

I ran:

twistd -y kippo.tac -n --spew

And discovered that deepcopy was taking a long time.

Installing pypy

I wanted to see if pypy was able to run deepcopy faster.

r = []
for i in xrange(40):
    l = [round(random.random()*100000) for i in xrange(10*3*60*60)]
    r.append(l)

ini = time.time()
copy.deepcopy(r)
print "Time: ", time.time() - ini

It was faster with pypy.

$ curl -O http://python-distribute.org/distribute_setup.py
$ curl -O https://raw.github.com/pypa/pip/master/contrib/get-pip.py
$ ./pypy-2.1/bin/pypy distribute_setup.py
$ ./pypy-2.1/bin/pypy get-pip.py
$ ./pypy-2.1/bin/pip install pygments  # for example

Running with pypy

$ pypy /usr/bin/twisted -y kippo.tac -n

Change the start.py file to use pypy.

Starting kippo on boot

To make kippo start when the raspberry pi was booted I created an init file the code can be found here:

https://gist.github.com/paul-schwendenman/94665208d9efbd0e2921#file-kippo