binkybong/keepalived repository overview

⁠keepalived

Centos based keepalived

docker pull binkybong/keepalived

or build:

docker build -t keepalived .

Params:

VIP : Virtual IP address ETH : Physical network interface name PRI : Priority of the VIP - the highest priority wins and will mark that host as the master

Example run:

On the "master" docker host:

docker run -d
--net=host --privileged=true
-e VIP=192.168.1.150
-e ETH=eth0
-e PRI=200
binkybong/keepalived

On the "slave" docker host:

docker run -d
--net=host --privileged=true
-e VIP=192.168.1.150
-e ETH=eth0
-e PRI=100
binkybong/keepalived

To view the logs:

docker logs keepalived

The keepalived executable binary is wrapped up in a bash script that will trap SIGTERM events from the host so it will terminate gracefully and remove the VIP from the hosts NIC properly.

Enjoy!