Add a keepalived role.

handlers/restart_services.yml

@@ -147,3 +147,6 @@
 
 - name: restart varnish
   service: name=varnish state=restarted
+
+- name: restart keepalived
+  service: name=keepalived state=restarted

roles/keepalived/tasks/main.yml

@@ -0,0 +1,27 @@
+#
+# role for keepalived
+# This role needs several variables defined:
+#
+# keepalived_interface - interface to listen on
+# keepalived_priority - priority of this host
+# keepalived_ipaddress - virtual ip address on master host
+#
+
+- name: Install keepalived package
+  yum: state=present name=keepalived
+  tags:
+  - packages
+  - keepalived
+
+- name: Install keepalived template
+  template: src=keepalived.conf.j2 dest=/etc/keepalived.conf
+  tags:
+  - config
+  - keepalived
+  notify:
+  - restart keepalived
+
+- name: Make sure keepalived is set to start and is running
+  service: state=running enabled=true name=keepalived
+  - service
+  - keepalived

roles/keepalived/templates/keepalived.conf.j2

@@ -0,0 +1,22 @@
+global_defs {
+   notification_email {
+       admin@fedoraproject.org
+   }
+   notification_email_from keepalived
+   smtp_server 10.5.126.12
+   smtp_connect_timeout 30
+}
+
+vrrp_instance VI_1 {
+  # initial state
+  state BACKUP
+  interface {{ keepalived_interface }}
+  # arbitary unique number 0..255
+  # used to differentiate multiple instances of vrrpd
+  virtual_router_id 17
+  # for electing MASTER, highest priority wins.
+  # to be MASTER, make 50 more than other machines.
+  priority {{ keepalived_priority }}
+  virtual_ipaddress {
+     {{ keepalived_ipaddress }}
+}