-- AdriaCasajus - 12 Feb 2008

Apache + mod_python + Pylons + DIRAC

Required packages

  • httpd-devel
  • httpd
  • mod_ssl
  • gcc
  • gcc-c++
  • zlib
  • zlib-devel

Prepare DIRAC

Compile python if it's not there

For Python2.5


For Python2.4


Install Pylons

<DIRACROOT>/<DIRACARCH>/bin/python <DIRACROOT>/contrib/pyOpenSSL/ez_setup.py
<DIRACROOT>/<DIRACARCH>/bin/easy_install Pylons

Grid Requirements

In order to only allow valid certificates apache needs a CA directory (with CAs and CRLs updated periodically) and a certificate.

Setting up Apache

Install mod_python

cp <DIRACROOT>/DIRAC/Interfaces/Web/wgsi.py <DIRACROOT>/<DIRACARCH>/lib/python<PYTHONVERSION>/site-packages/mod_python

Configure Apache

Under SLC4 apache configuration file is /etc/httpd/conf/httpd.conf

  • Load mod_python
LoadModule python_module modules/mod_python.so
  • Define mod_python as the handler for the DIRAC web directory
<Directory "/opt/dirac/webRoot/DIRAC">
  SetHandler mod_python
  PythonHandler mod_python.wsgi
  PythonPath "['/opt/dirac/DIRAC3/DIRAC/Interfaces/Web'] + sys.path"
  PythonOption wsgi.application startup::app

Configuring mod_ssl

Under SLC4 mod_ssl configuration file is /etc/httpd/conf.d/ssl.conf and it has to have defined the following settings:

  • SSLCertificateFile /pathto/certfile
  • SSLCertificateKeyFile /pathto/keyfile
  • SSLCACertificatePath /etc/grid-security/certificates
  • SSLCARevocationPath /etc/grid-security/certificates
  • SSLVerifyClient require
  • SSLVerifyDepth 10
  • SSLOptions +StdEnvVars
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Topic revision: r2 - 2008-02-12 - AdriaCasajus
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