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HAProxy

HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications, used for Load Balancer . Provides a high availability load balancer and proxy server for TCP and HTTP-based applications.

configuration

Prepare​

When referring to this document to use HAProxy, please read and ensure the following points:

  • Login to Websoft9 Console and find or install HAProxy:

    • Go to My Apps listing applications
    • Go to App Store installing target application

  • This application is installed by Websoft9 console.

  • The purpose of this application complies with the GPL-2.0 open source license agreement.

  • Configure the domain name or server security group opens external network ports for application access.

Getting started​

Login verification​

  1. After Completing the installation of HAProxy in the Websoft9 console, get the applicaiton's overview and access credentials from My Apps.

  2. Set the password in the configuration file.

Enable HAProxy Monitoring​

HAProxy Statistics Report is set by default and can be viewed through Websoft9 console > access > backend.

High Availability​

Achieve High Availability of HAProxy by deploying Keepalived.

Cluster Configuration​

To enable HAProxy clustering, add cluster server info to the configuration file.
Examples are as follows:

## HTTP Site Configuration]
listen http_web 192.168.10.10:80
        mode http
        balance roundrobin # Load Balancing algorithm
        option httpchk
        option forwardfor
        server server1 192.168.10.100:80 weight 1 maxconn 512 check
        server server2 192.168.10.101:80 weight 1 maxconn 512 check

# [HTTPS Site Configuration]
listen https_web 192.168.10.10:443
        mode tcp
        balance source# Load Balancing algorithm
        reqadd X-Forwarded-Proto: http
        server server1 192.168.10.100:443 weight 1 maxconn 512 check
        server server2 192.168.10.101:443 weight 1 maxconn 512 check

Configuration options​

  • Configuration file (mounted): /usr/local/etc/haproxy/haproxy.cfg
  • CLI: haproxy
  • HAProxy APIS

Administer​

Troubleshooting​