Modularize keepalived configs

inventory/hosts.yml

@@ -31,6 +31,7 @@ all:
                     kubernetes_role: node
                   hosts:
                     pi-kub-node-1.desu.ltd:
+                      keepalived_state: MASTER
                       keepalived_priority: 50
                     pi-kub-node-2.desu.ltd:
                       keepalived_priority: 49

playbooks/pik8s.yml

@@ -28,6 +28,13 @@
   roles:
     - role: keepalived
       vars:
-        keepalived_auth_pass: "{{ secret_keepalived_pass }}"
-        keepalived_vip: "192.168.102.200/16"
+        keepalived_stanzas:
+          - name: VI_1
+            state: "{{ keepalived_state | default('BACKUP') }}"
+            interface: eth0
+            virtual_router_id: 51
+            priority: "{{ keepalived_priority }}"
+            advert_int: 1
+            auth_pass: "{{ secret_keepalived_pass }}"
+            vip: "192.168.102.200/16"
       tags: [ k8s, keepalived ]

roles/keepalived/defaults/main.yml

@@ -1,21 +1,22 @@
 # vim:ft=ansible:
 
-# Node priority. Should be assigned differently for each host
-keepalived_priority: 50
-# Node state. Should be "MASTER" on the master and "BACKUP" on backup machines
-keepalived_state: "BACKUP"
-
-# The interface to assign the VIP to
-keepalived_interface: "eth0"
-# The virtual router ID
-keepailved_virtual_router_id: 51
-# The VIP to pass around. Include the subnet mask like so:
-# 192.168.0.5/24
-keepalived_vip: ""
-# Advertisement interval in seconds
-keepalived_advert_int: 1
-# Name of the vrrp instance
-keepalived_vrrp_instance_name: "VI_1"
-
-# Keepalived authentication password
-#keepalived_auth_pass
+# A list of stanzas to put in the keepalived.conf file
+keepalived_stanzas: []
+#keepalived_stanzas:
+#    # Name of the vrrp instance
+#  - name: VI_1
+#    # Node state. Should be "MASTER" on the master and "BACKUP" on backup machines
+#    state: BACKUP
+#    # The interface to assign the VIP to
+#    interface: eth0
+#    # The virtual router ID
+#    virtual_router_id: 51
+#    # Node priority. Should be assigned differently for each host
+#    priority: 100
+#    # Advertisement interval in seconds
+#    advert_int: 1
+#    # Keepalived authentication password
+#    auth_pass: mySuperSecretPassword
+#    # The VIP to pass around. Include the subnet mask like so:
+#    # 192.168.0.5/24
+#    vip: 1.2.3.4

roles/keepalived/templates/keepalived.conf

@@ -1,14 +1,16 @@
-vrrp_instance {{ keepalived_vrrp_instance_name }} {
-	state {{ keepalived_state }}
-	interface {{ keepalived_interface }}
-	virtual_router_id {{ keepailved_virtual_router_id }}
-	priority {{ keepalived_priority }}
-	advert_int {{ keepalived_advert_int }}
+{% for stanza in keepalived_stanzas %}
+vrrp_instance {{ stanza.name }} {
+	state {{ stanza.state | default('BACKUP') }}
+	interface {{ stanza.interface }}
+	virtual_router_id {{ stanza.virtual_router_id }}
+	priority {{ stanza.priority }}
+	advert_int {{ stanza.advert_int | default('1') }}
 	authentication {
 		auth_type PASS
-		auth_pass {{ keepalived_auth_pass }}
+		auth_pass {{ stanza.auth_pass }}
 	}
 	virtual_ipaddress {
-		{{ keepalived_vip }}
+		{{ stanza.vip }}
 	}
 }
+{% endfor %}