HAProxy Enterprise Documentation 1.9r1

Installation

Install the Update module as follows for your platform:

$ # On Debian/Ubuntu
$ sudo apt-get install hapee-1.9r1-lb-update

$ # On CentOS/RedHat/Oracle
$ sudo yum install hapee-1.9r1-lb-update

$ # On SUSE
$ sudo zypper install hapee-1.9r1-lb-update

$ # On FreeBSD
$ sudo pkg install hapee-1.9r1-lb-update

Configuration

In the global section of your configuration file, add a module-load directive to load the Update module:
```
global
   module-load hapee-lb-update.so
```
Below the global section, add a new configuration section named dynamic-update. Inside, add one or more update lines that specify from where and how often to download new content. Here is an example that updates the contents of a file at /etc/hapee-1.9/redirects.map from the URL http://10.0.0.1:80/redirects.map:
```
dynamic-update
   update id /etc/hapee-1.9/redirects.map map url http://10.0.0.1:80/redirects.map delay 300s
```
As an example, the contents of this file could be a list of IP subnets and URL paths to redirect clients to if their IP address falls within one of the ranges:
```
10.0.0.0/8     /maint/maintenance.html
192.168.0.0/16 /maint/forbiden.html
0.0.0.0        /maint/deny.html
```
In the following snippet, a frontend references this data using an acl directive and an http-request redirect directive:
```
frontend fe_main
   mode http
   bind :80
   acl redirect_needed src,map_ip(/etc/hapee-1.9/redirects.map) -m found
   http-request redirect location src,map_ip(/etc/hapee-1.9/redirects.map) if redirect_needed
```

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