HP Serviceguard Enterprise Cluster Master Toolkit User Guide (5900-2145, April 2013)

an Apache instance so that it listens to specific IP Addresses, this directive must be changed
to "Listen <IP Address> <Port>”.
NOTE: The default configuration file is available at: /opt/hpws22/apache/conf/httpd.conf
You must disable the automatic start of the standard Apache default installation if Apache is run
from Serviceguard so that no application is running on the server when the system starts up.
• You must create a separate, distinct SERVER_ROOT directory for each Apache Serviceguard
package.
• You must configure all Apache instances to listen to package re-locatable IP addresses using
BindAddress or Listen directives. For mor information on configuring virtual hosts, see the
Apache Web Server documentation. For example, the configuration file for an Apache instance
that combines IP-based and name-based virtual hosts includes the following directive:
Listen 192.168.0.1:80
Listen 192.168.0.2:80
NameVirtualHost 192.168.0.2:80
<VirtualHost web.site1.url:80>
ServerName web.site1.url
DocumentRoot /shared/httpd/www-site1
</VirtualHost>
<VirtualHost web.site2.url:80>
ServerName web.site2.url
DocumentRoot /shared/httpd/www-site2
</VirtualHost>
Local configuration
For a local configuration, install and configure Apache in the same location on the primary and
all backup nodes and set up identical (or equivalent) configuration files in the same server root
directory on all nodes. Also, all document root directories must exist on all nodes and should
contain identical files.
Shared configuration
For a shared configuration, typically configure document root directory on shared file system. Note
that one or more shared file systems may be used. Ensure that all required components which are
on shared storage will be available at the same time. (It is not mandatory to place the SERVER_ROOT
directory on a shared file system in order to make use of shared storage. Choose a local
SERVER_ROOT directory for configuration files and place only the document root directories on a
shared file system. However, configure identical SERVER_ROOT directories and identical
configuration files on all nodes.)
Configure a shared file system which is managed by LVM, create volume groups and logical
volumes on the shared disks and construct a new file system for each logical volume for the Apache
Web Server document root and server root.
Static web data such as web pages with no data update features can reside on a local disk.
However, all web data that needs to be shared must reside on shared storage. This data may
contain dynamic data generated and updated by a client's HTTP POST request.
The following is an example of configuring an Apache instance that uses shared storage for all
Apache instance data. Consider that all Apache instance files are configured on a shared file
system /shared/apache_1 directory, which resides on a logical volume "lvol1" . To configure
an Apache instance from a shared volume group "/dev/vg01":
Configuring the Apache Web Server with Serviceguard 101