minecraft: Allow opening additional ports

roles/minecraft/defaults/main.yml

@@ -48,6 +48,12 @@ minecraft_rcon_password: "CHANGEME"
 # The minecraft container configuration as environment variables (see https://github.com/itzg/docker-minecraft-server)
 minecraft_config: []
 
+# This config allows to add new portbindings to the minecraft server, eg. for voicechat.
+#
+# Example entry:
+# - 24454:24454/udp
+minecraft_additional_ports: []
+
 # IPv6 ULA config for the bridge network used by docker-ipv6-nat
 minecraft_ipv6:
   enabled: false

roles/minecraft/templates/docker-compose.yml

@@ -24,6 +24,9 @@ services:
     image: docker.io/itzg/minecraft-server:{{ minecraft_image_tag }}
     ports:
       - "{{ minecraft_server_port }}:25565"
+{% for item in minecraft_additional_ports %}
+      - "{{ item }}"
+{% endfor %}
     volumes:
       - "{{ minecraft_data_location }}:/data"
     environment: