| Version 5 (modified by pjkersha, 8 years ago) (diff) |
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Deploying ndg_oauth with mod_wsgi
Instructions for deploying an example client, authorisation server and resource server (with PySAML2 SP). Platform is Ubuntu 11.10
mod_wsgi
Ubuntu provides a package for this but it is built against Python 2.6 whereas the default system Python is 2.7. Download and install against the 2.7 version to be safe.
- Install pre-requisites:
apt-get install python-dev apache2-prefork-dev
- Download and build
wget http://modwsgi.googlecode.com/files/mod_wsgi-3.4.tar.gz tar zxvf mod_wsgi-3.4.tar.gz cd mod_wsgi-3.4 ./configure make sudo make install
- Make a load config file and enable
cat > /etc/apache2/mods-available/wsgi.load << EOF LoadModule wsgi_module /usr/lib/apache2/modules/mod_wsgi.so EOF
a2enmod wsgi
Python environment
- Prerequisites
apt-get install python-setuptools python-virtualenv xmlsec1
- Make virtualenv in some suitable location e.g.
sudo virtualenv /usr/local/contrail_faas
- Make a requirements text file
cat > /usr/local/contrail_faas/requirements.txt << EOF ndg_oauth_client ndg_oauth_server argparse Beaker decorator Genshi httplib2 ndg-httpsclient Paste PasteDeploy PasteScript pyasn1 pyOpenSSL pysaml2 python-memcached repoze.who repoze.who.deprecatedplugins WebOb wsgiref zope.interface EOF
- Activate environment and install packages
. /usr/local/contrail_faas/bin/activate pip install -r requirements.txt
Python Configuration files
- Make directories for the python client and server copying the bearer token example directories given in the respective packages - ndg.oauth.client.examples.bearer_tok and ndg.oauth.server.examples.bearer_tok.
- Add in the additional config needed for the PySAML2 SP:
cat /usr/local/contrail_faas/oauth_server/sp_conf.py << EOF from os import path import saml2 from saml2 import BINDING_HTTP_REDIRECT from saml2.saml import NAME_FORMAT_URI BASE= "https://localhost/oauth-server/" HERE_DIR = path.dirname(path.abspath(__file__)) CONFIG = { "entityid" : "https://localhost", "description": "OAuth authentication", "service": { "sp":{ "name" : "Contrail OAuth Auz", "endpoints":{ "assertion_consumer_service": [BASE], "single_logout_service" : [(BASE+"slo", BINDING_HTTP_REDIRECT)], }, "required_attributes": ["surname", "givenname", "edupersonaffiliation"], "optional_attributes": ["title"], "idp": { 'https://federation.contrail-idp.egi-cloud5.zam.kfa-juelich.de/simplesaml/saml2/idp/metadata.php': { 'single_sign_on_service': { saml2.BINDING_HTTP_REDIRECT: 'https://federation.contrail-idp.egi-cloud5.zam.kfa-juelich.de/simplesaml/saml2/idp/SSOService.php', }, 'single_logout_service': { saml2.BINDING_HTTP_REDIRECT: 'https://federation.contrail-idp.egi-cloud5.zam.kfa-juelich.de/simplesaml/saml2/idp/SingleLogoutService.php', }, }, } , } }, "debug" : 1, "key_file" : path.join(HERE_DIR, "pki/mykey.pem"), "cert_file" : path.join(HERE_DIR, "pki/mycert.pem"), "attribute_map_dir" : path.join(HERE_DIR, "attributemaps"), 'metadata': { 'local': [path.join(HERE_DIR, "idp-egi-cloud.xml")], }, # -- below used by make_metadata -- "organization": { "name": "Contrail", "display_name": [("Contrail","en"),("Contrail","en")], "url":"http://www.contrail-project.eu", }, "contact_person": [{ "given_name":"Ales", "sur_name": "Cernivec", "email_address": ["ales.cernivec@xlab.si"], "contact_type": "technical", }, ], "xmlsec_binary":"/usr/bin/xmlsec1", "name_form": NAME_FORMAT_URI } EOF
Create WSGI scripts
- Scripts dir
mkdir /var/www/wsgi-scripts/
- Client script
cat /var/www/wsgi-scripts//oauth-client.wsgi << EOF ALLDIRS = [ '/usr/local/contrail_faas/lib/python2.7/site-packages', '/usr/local/contrail_faas/oauth_client' ] import sys import site # Remember original sys.path. prev_sys_path = list(sys.path) # Add each new site-packages directory. for directory in ALLDIRS: site.addsitedir(directory) # Reorder sys.path so new directories at the front. new_sys_path = [] for item in list(sys.path): if item not in prev_sys_path: new_sys_path.append(item) sys.path.remove(item) sys.path[:0] = new_sys_path from paste.deploy import loadapp from logging.config import fileConfig config_filepath = '/usr/local/contrail_faas/oauth_client/bearer_tok_client_app.ini' fileConfig(config_filepath) application = loadapp('config:%s' % config_filepath) EOF - Server script
cat /var/www/wsgi-scripts/oauth-server.wsgi ALLDIRS = [ '/usr/local/contrail_faas/lib/python2.7/site-packages', '/usr/local/contrail_faas/oauth_server' ] import sys import site # Remember original sys.path. prev_sys_path = list(sys.path) # Add each new site-packages directory. for directory in ALLDIRS: site.addsitedir(directory) # Reorder sys.path so new directories at the front. new_sys_path = [] for item in list(sys.path): if item not in prev_sys_path: new_sys_path.append(item) sys.path.remove(item) sys.path[:0] = new_sys_path from paste.deploy import loadapp from logging.config import fileConfig config_filepath = '/usr/local/contrail_faas/oauth_server/bearer_tok_server_app.ini' fileConfig(config_filepath) application = loadapp('config:%s' % config_filepath)
Apache config WSGI Directives
- Prerequisites: working config with SSL enabled
- Edit /etc/apache2/sites-available/default-ssl adding:
<Directory /var/www/wsgi-scripts> Order allow,deny Allow from all </Directory> WSGIDaemonProcess contrail processes=2 threads=15 WSGIProcessGroup contrail WSGIScriptAlias /oauth-client /var/www/wsgi-scripts/oauth-client.wsgi WSGIScriptAlias /oauth-server /var/www/wsgi-scripts/oauth-server.wsgi
Testing
Restart Apache, enter https://localhost/oauth-client/ into ab browser and tail the logs to check for errors.
