communishift: add keepalived and mod so it can handle 2 ips.

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

inventory/host_vars/os-proxy01.fedorainfracloud.org

@@ -16,3 +16,15 @@ nrpe_procs_warn: 1200
 nrpe_procs_crit: 1400
 
 vpn: false
+
+# Keepalived variables for os
+keepalived_interface: eth0
+keepalived_priority: 100
+keepalived_ipaddress: 38.145.48.40
+keepalived_routerid: 20
+
+# Keepalived variables for app.os
+keepalived2_interface: eth0
+keepalived2_priority: 50
+keepalived2_ipaddress: 38.145.48.41
+keepalived2_routerid: 25

inventory/host_vars/os-proxy02.fedorainfracloud.org

@@ -16,3 +16,15 @@ nrpe_procs_warn: 1200
 nrpe_procs_crit: 1400
 
 vpn: false
+
+# Keepalived variables for os
+keepalived_interface: eth0
+keepalived_priority: 50
+keepalived_ipaddress: 38.145.48.40
+keepalived_routerid: 20
+
+# Keepalived variables for app.os
+keepalived2_interface: eth0
+keepalived2_priority: 100
+keepalived2_ipaddress: 38.145.48.41
+keepalived2_routerid: 25

playbooks/groups/os-proxies.yml

@@ -23,6 +23,7 @@
   - nagios_client
   - collectd/base
   - sudo
+  - keepalived
 
   tasks:
   - import_tasks: "{{ tasks_path }}/2fa_client.yml"

roles/keepalived/templates/keepalived.conf.j2

@@ -29,3 +29,28 @@ vrrp_instance VI_1 {
      {{ keepalived_ipaddress }}
   }
 }
+
+{% if keepalived2_ipaddress %}
+vrrp_instance VI_1 {
+  # initial state
+  state MASTER
+  interface {{ keepalived2_interface }}
+  # arbitary unique number 0..255
+  # used to differentiate multiple instances of vrrpd
+  virtual_router_id {{ keepalived2_routerid }}
+  # for electing MASTER, highest priority wins.
+  # to be MASTER, make 50 more than other machines.
+  priority {{ keepalived2_priority }}
+  #
+  # On master/backup changes, add/remove cron jobs and kojira
+  #
+  notify /usr/local/bin/keepalived2-notify.sh
+  #
+  # On stop/shutdown, do the same things as moving to MASTER
+  #
+  notify_stop "/usr/local/bin/keepalived2-notify.sh type VI_1 MASTER PRI"
+  virtual_ipaddress {
+     {{ keepalived2_ipaddress }}
+  }
+}
+{% endif %}