Keepalived HAProxy Setup with Vagrant and Puppet

Test the Setup

start all boxes

vagrant up lb1 lb2 webserver1 webserver2 webserver3

made request to both floating IPs

watch -n 1 curl -I 192.168.10.80

watch -n 1 curl -I 192.168.10.80

Failover

• stop lb1: vagrant halt lb1
• start lb1: vagrant up lb1
• stop lb2: vagrant halt lb1
• start lb2: vagrant up lb1

Both IPs are available during this test. The failover need 1-2 seconds.

VMs

• 2 Loadbalancer
• lb1: 192.168.10.50
• lb2: 192.168.10.51
• 3 Weberserver
• webserver1: 192.168.10.21
• webserver2: 192.168.10.22
• webserver3: 192.168.10.23

192.168.10.80 and 192.168.10.90 are floating IPs between lb1 and lb2 lb1 is the master for 192.168.10.90 and lb2 for 192.168.10.80.

ToDo

Use conntrackd for share the TCP states between both LBs -> no downtime during the failover