Corosync
We will use corosync to create a virtual IP-address which is shared by two systems. One of the systems has the virtual IP-address. If the system goes down, the other system will take over the virtual IP-address.
- 192.168.1.47 virtual IP-address
- 192.168.1.48 haproxy01
- 192.168.1.49 haproxy02
Software
apt-get install corosync
Configuration
Add the local network and a multicast address to /etc/corosync/corosync.conf in the interface section
interface { bindnetaddr: 192.168.1.0 mcastaddr: 239.192.1.1 }
Commmands
Run the following on startup