iSeriesPython Files

It is possible to have the IBM HTTP Server on the iSeries serving up web pages dynamically generated by iSeriesPython apps like CherryPy or Django via the mod_scgi apache module and the flup.server.scgi scgi-wsgi gateway.

To install mod_scgi on your system:
- Download mod_scgi.zip
- Create a save file MOD_SCGI in QGPL.
- Decompress and ftp the mod_scgi.savf file to your "AS/400" (binary mode)
- Run RSTOBJ OBJ(*ALL) SAVLIB(QGPL) DEV(*SAVF) SAVF(QGPL/MOD_SCGI)

The following directives are added to the configuration file for the HTTP Server instance that will utilize mod_scgi:
                                                              
# Load the mod_scgi module                                    
LoadModule scgi_module /QSYS.LIB/QGPL.LIB/MOD_SCGI.SRVPGM  
                                                              
# Set up location to be served by an SCGI server process      
SCGIMount /dynamic/ 127.0.0.1:4000  

The path specified in the SCGIMount directive needs to be whatever path is appropriate.

The scgi-wsgi gateway that is used is flup.server.scgi which is available for download from http://trac.saddi.com/flup. After downloading flup add it to /python27/site-packages.  When using flup.server.scgi as a gateway do not specify ‘localhost’ in the bindAddress, but instead specify ‘127.0.0.1’.  

Here is an example of a simple CherryPy WSGI application:

from flup.server.scgi import WSGIServer
import cherrypy

class HelloWorld:
    def index(self):
        """
	This is where the html generation code goes.  
	"""
	return "Hello world from CherryPy!"

    index.exposed = True
    
my_app = cherrypy.Application(HelloWorld(), script_name="/dynamic", config=None)
    
WSGIServer(my_app, bindAddress=('127.0.0.1', 4000)).run()


Submit this app to batch (being sure to allow multithreading), then start the IBM HTTP Server instance that has been configured to load the mod_scgi module.  Open a web browser with the appropriate URL and you should be greeted with:

Hello World from CherryPy!