How to Install HAproxy Load Balancer in Ubuntu
How to Install HAproxy Load Balancer in Ubuntu
HAProxy is an open source TCP and HTTP load balancer and a proxy software used in Linux distributions. It distributes the workload among multiple servers to improve the performance of the servers. This article explains the installation process of the HAProxy Load Balancer in Ubuntu.
Installation of HAproxy Load Balancer
Before installing HAproxy, add the required package into repository.
root@linuxhelp:~# add-apt-repository ppa:vbernat/haproxy-1.6
HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particular
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gpg: key 1C61B9CD: public key " Launchpad PPA for Vincent Bernat" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
OK
Utilize the following command to update the machine.
root@linuxhelp:~# apt-get update
Hit http://in.archive.ubuntu.com wily InRelease
Get:1 http://security.ubuntu.com wily-security InRelease [65.9 kB]
Get:2 http://ppa.launchpad.net wily InRelease [15.4 kB]
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Get:38 http://security.ubuntu.com wily-security/universe Translation-en [37.4 kB]
Fetched 1,912 kB in 19s (97.3 kB/s)
Reading package lists... Done
Now its time to install the HAproxy package.
root@linuxhelp:~# apt-get install haproxy
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
liblua5.3-0
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Processing triggers for libc-bin (2.21-0ubuntu4) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for systemd (225-1ubuntu9) ...
The ' -v' option used to check the version of HAproxy.
root@linuxhelp:~# haproxy -v
HA-Proxy version 1.6.7 2016/07/13
Copyright 2000-2016 Willy Tarreau < willy@haproxy.org>
Use the below command to take the original HAproxy configuration file.
root@linuxhelp:~# cp /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.original
Open the HAproxy configuration file and add content into the entry as shown below,
root@linuxhelp:~# vim /etc/haproxy/haproxy.cfg
frontend http_front
bind *:80
stats uri /haproxy?stats
default_backend http_back
backend http_back
balance roundrobin
server wbs1.com 192.168.5.155:80 check
server wbs2.com 192.168.5.147:80 check
Once the HAproxy is configured, restart the service.
root@linuxhelp:~# service haproxy restart
Open the web browser with the HAproxy IP to check the status of web-servers.
Now you can access the web-server with IP address of Load Balancer. Also can view content of the backend webservers by each and every request.
Again open the configuration file of HAproxy and add the following line for authentication.
root@linuxhelp:~# vim /etc/haproxy/haproxy.cfg
listen stats
bind *:8800
stats enable
stats uri /
stats realm Haproxy Statistics
stats auth admin:12345
Once the above process is completed, estart the HAproxy service .
root@linuxhelp:~# service haproxy restart
Now open the Browser with the Load Balacer IP and assigned port number. Enter the following credentials as follows,