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Running a redundant apache server does not require much from apache itself, but rather the underlying filesystem and a proxy in front of it. The filesystem is important, so the website and its php sessions can be shared between the servers. For this we will use [[GlusterFS|GlusterFS]]. The proxy in front of apache will be a combination of [[HA-proxy|HA-proxy]] and [[Corosync|Corosync]]. In this setup we will configure 2 apache servers. |
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| apt-get install apache2 | apt-get install apache2 php php-mysql |
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| === GlusterFS === ==== Backup ==== Make a backup of `/var/www` |
== Filesystem == Configure your system as a Gluster Client, so you have /var/www on a GlusterFS. `index.php` |
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| cd /var tar cfvzp www.tar.gz www/ |
<?php echo gethostname(); ?> |
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| ==== GlusterFS Client ==== Install the glusterfs client and mount the glusterfs volume. ==== Restore ==== Restore the backup {{{ tar xfvzp www.tar rm www.tar.gz }}} {{{ apt-get install glusterfs-client }}} |
make a simple webpage, that shows something uniq about the system |
Apache
Running a redundant apache server does not require much from apache itself, but rather the underlying filesystem and a proxy in front of it. The filesystem is important, so the website and its php sessions can be shared between the servers. For this we will use GlusterFS. The proxy in front of apache will be a combination of HA-proxy and Corosync.
In this setup we will configure 2 apache servers.
Software
apt-get install apache2 php php-mysql
Filesystem
Configure your system as a Gluster Client, so you have /var/www on a GlusterFS.
index.php
<?php echo gethostname(); ?>
make a simple webpage, that shows something uniq about the system