server/minecraft: Allow configure motd

roles/server/minecraft/defaults/main.yml

@@ -24,3 +24,4 @@ minecraft_start_ram: "{{ minecraft_ram }}"
 minecraft_max_ram: "{{ minecraft_ram }}"
 minecraft_difficulty: "normal"
 minecraft_view_distance: 10
+minecraft_motd: "{{ domain }} Server"

roles/server/minecraft/templates/server.properties

@@ -18,7 +18,7 @@ resource-pack=
 level-name=world
 rcon.password={{ minecraft_rcon_password }}
 player-idle-timeout=0
-motd={{ domain }} Server
+motd={{ minecraft_motd }}
 query.port=25565
 force-gamemode=false
 hardcore=false