feat(vrrp_sync_group): added option for vrrp_sync_group

* Changed the template to include new config setting group
* Added example to pillar.example
* Included test (could be better if we check the entire section and
  ensure that it is in the correct format?)

keepalived/files/default/keepalived.conf.tmpl.jinja

@@ -4,7 +4,7 @@
 ########################################################################
 
 {%- from "keepalived/macro.jinja" import print_config %}
-{%- set sections = ['global_defs', 'vrrp_script', 'vrrp_instance', 'virtual_server'] %}
+{%- set sections = ['global_defs', 'vrrp_sync_group', 'vrrp_script', 'vrrp_instance', 'virtual_server'] %}
 {%- for section in sections %}
 {{ print_config({ section: config[section]|d({}) }) }}
 {%- endfor %}

pillar.example

@@ -27,6 +27,11 @@ keepalived:
       smtp_server: 192.168.200.1
       smtp_connect_timeout: 30
       router_id: LVS_DEVEL
+    vrrp_sync_group:
+      EXAMPLE_GROUP:
+        group:
+          - VI_IPV4
+          - VI_IPV6
     vrrp_instance:
       VI_1:
         state: MASTER

test/integration/default/controls/config_spec.rb

@@ -9,5 +9,11 @@ control 'Keepalived configuration' do
 
     # Custom config from pillar
     its('content') { should include 'acassen@firewall.loc' }
+
+    # Check config from example pillar -- example vrrp sync group
+    its('content') { should include 'EXAMPLE_GROUP' }
+
+    # Check config from example pillar -- vrrp sync group item
+    its('content') { should include 'VI_IPV6' }
   end
 end