ansible-keepalived: Ansible role for setting up keepalived

Toni Comerma - tcomerma (at) gmail.com

This role sets up keepalived for an standard setup of:

• One virtual IP
• Two hosts

You just need to provide an small amount of information to have it running

• Add "keepalived" role to both hosts
• Add variable keepalived_role: "master" | "slave" to the appropiate hosts
• Add variable keepalived_shared_ip: "floating IP address" to both hosts

Other variables can be configured, overwriting defaults/main.yml

Keepalived can watch processes to influence on which node should be the master. Setting variable "keepalived_check_process" to the name of the process will do. I use keepalived to give high availability to haproxy, so I use.

keepalived_check_process: "haproxy"

Dependencies

Works with centos/redhat and Debian/Ubuntu

Role Variables

keepalived_auth_pass: "1111"
keepalived_role: "MASTER"
keepalived_router_id: "52"
keepalived_shared_iface: "eth0"
keepalived_shared_ip: "192.168.1.1"
keepalived_check_process: "keepalived"
keepalived_priority: "100"

Example Playbook

- hosts: s1
  roles:
     - { role: keepalived, keepalived_shared_ip: "192.168.1.1", keepalived_role: "master" }

- hosts: s2
  roles:
     - { role: keepalived, keepalived_shared_ip: "192.168.1.1", keepalived_role: "slave" }

Testing & trying

Quite simple if you have vagrant installed.

• Pulling from github

mkdir -p test-keepalived/roles
cd test-keepalived/roles
git clone https://github.com/tcomerma/ansible-keepalived.git
cd ..
cp roles/ansible-keepalived/test/* .
mv Vagrantfile.Debian Vagrantfile
vagrant up

• Pulling from ansible-galaxy

mkdir -p test-keepalived/roles
ansible-galaxy install -p test-keepalived/roles tcomerma.keepalived
cd test-keepalived
cp roles/tcomerma.keepalived/test/* .
mv Vagrantfile.Debian Vagrantfile

Edit playbook.yml and change "- ansible-keepalived" for "- tcomerma.keepalived"

vagrant up

License

Apache

Author Information

Toni Comerma - tcomerma (at) gmail.com