Changes between Version 8 and Version 9 of ServerAdministration


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Timestamp:
Jun 6, 2011, 5:11:00 PM (8 years ago)
Author:
work@…
Comment:

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  • ServerAdministration

    v8 v9  
    7474
    7575== Apache ==
    76 Currently, the Apache webserver is set
     76Currently, the Apache webserver is set up to proxy requests to the tomcat daemon in charge of a specific environment. The configuration is also already set up to perform loadbalancing. Note that in the configuration below the application context is ''gscf-0.8.3-www'', this should be changed to match the application context on the tomcat server:
     77
     78{{{
     79root@nmcdsp:/etc/apache2/sites-available# cat nmcdsp.org_gscf-www.conf
     80# Apache Virtual Host for GSCF Production Build
     81#
     82# Author        Jeroen Wesbeek <J****n.W******@gmail.com>
     83# Since         20100825
     84#
     85# Revision Information:
     86# $Author$
     87# $Date$
     88# $Rev$
     89#
     90<VirtualHost *:80>
     91        ServerName studies.nmcdsp.org
     92        ServerAlias www.studies.nmcdsp.org gscf.nmcdsp.org www.gscf.nmcdsp.org
     93
     94        ErrorLog /var/log/apache2/gscf-www-error.log
     95        CustomLog /var/log/apache2/gscf-www-access.log combined
     96
     97        # Make sure that my document root points to the root of the web
     98        # application (where the WEB-INF is located, for instance).
     99        #DocumentRoot /var/www/nmcdsp.org_www/htdocs
     100
     101        #ErrorDocument 404 /503.php
     102
     103        <IfModule mod_rewrite.c>
     104                RewriteEngine on
     105
     106                # keep listening for the serveralias, but redirect to
     107                # servername instead to make sure only one user session
     108                # is created (tomcat will create one user session per
     109                # domain which may lead to two (or more) usersessions
     110                # depending on the number of serveraliases)
     111                # see gscf ticket #321
     112                RewriteCond %{HTTP_HOST} ^gscf.nmcdsp.org$ [NC]
     113                RewriteRule ^(.*)$ http://studies.nmcdsp.org$1 [R=301,L]
     114                RewriteCond %{HTTP_HOST} ^www.gscf.nmcdsp.org$ [NC]
     115                RewriteRule ^(.*)$ http://studies.nmcdsp.org$1 [R=301,L]
     116                RewriteCond %{HTTP_HOST} ^www.studies.nmcdsp.org$ [NC]
     117                RewriteRule ^(.*)$ http://studies.nmcdsp.org$1 [R=301,L]
     118
     119                # rewrite the /gscf-a.b.c-environment/ part of the url
     120                RewriteCond %{HTTP_HOST} ^studies.nmcdsp.org$ [NC]
     121                RewriteRule ^/gscf-0.8.3-www/(.*)$ /$1 [L,PT,NC,NE]
     122        </IfModule>
     123
     124        <IfModule mod_proxy.c>
     125                <Proxy *>
     126                        Order deny,allow
     127                        Allow from all
     128                </Proxy>
     129
     130                ProxyStatus On
     131                ProxyPass / balancer://gscf-cluster/gscf-0.8.3-www/ stickysession=JSESSIONID|jsessionid nofailover=On
     132                ProxyPassReverse / balancer://gscf-cluster/gscf-0.8.3-www/
     133                ProxyPassReverseCookiePath /gscf-0.8.3-www /
     134
     135                # backend servlet container for virtual host support.
     136                ProxyPreserveHost On
     137
     138                # Tell mod_mod proxy that it should not send back the body-content of
     139                # error pages, but be fascist and use its local error pages if the
     140                # remote HTTP stack is sending an HTTP 4xx or 5xx status code.
     141                #ProxyErrorOverride On
     142
     143                <Location />
     144                        SetOutputFilter proxy-html
     145                        ProxyHTMLDoctype XHTML Legacy
     146                        ProxyHTMLURLMap /gscf-0.8.3-www/ /
     147                </Location>
     148
     149                <Proxy balancer://gscf-cluster>
     150                        #BalancerMember ajp://localhost:10009
     151                        BalancerMember http://localhost:10080
     152                </Proxy>
     153        </IfModule>
     154</VirtualHost>
     155root@nmcdsp:/etc/apache2/sites-available#
     156}}}
     157
     158Adding more nodes to include in the loadbalanced setup can be done by extending the ''proxy balancer'' configuration directive:
     159
     160{{{
     161                <Proxy balancer://gscf-cluster>
     162                        BalancerMember http://node1:port
     163                        BalancerMember http://node2:port
     164                        ...
     165                        BalancerMember http://nodeN:port
     166                </Proxy>
     167}}}
    77168
    78169== Backups ==