Make FluffyChat container HTTP port configurable

This makes it possible to switch out the container image with one that
uses a port other than 8080.

Author: spantaleev

roles/custom/matrix-client-fluffychat/defaults/main.yml

@@ -33,9 +33,14 @@ matrix_client_fluffychat_container_additional_networks: "{{ matrix_client_fluffy
 matrix_client_fluffychat_container_additional_networks_auto: []
 matrix_client_fluffychat_container_additional_networks_custom: []
 
+# Configures the port number used inside the container image.
+matrix_client_fluffychat_container_http_port: 8080
+
 # Controls whether the matrix-client-fluffychat container exposes its HTTP port (tcp/8080 in the container).
 #
-# Takes an "<ip>:<port>" or "<port>" value (e.g. "127.0.0.1:8765"), or empty string to not expose.
+# Takes an "<ip>:<port>" or "<port>" value (e.g. "127.0.0.1:8080"), or empty string to not expose.
+#
+# Also see: `matrix_client_fluffychat_container_http_port`
 matrix_client_fluffychat_container_http_host_bind_port: ''
 
 # matrix_client_fluffychat_container_labels_traefik_enabled controls whether labels to assist a Traefik reverse-proxy will be attached to the container.
@@ -44,6 +49,7 @@ matrix_client_fluffychat_container_http_host_bind_port: ''
 # To inject your own other container labels, see `matrix_client_fluffychat_container_labels_additional_labels`.
 matrix_client_fluffychat_container_labels_traefik_enabled: true
 matrix_client_fluffychat_container_labels_traefik_docker_network: "{{ matrix_client_fluffychat_container_network }}"
+matrix_client_fluffychat_container_labels_traefik_http_service_load_balancer_port: "{{ matrix_client_fluffychat_container_http_port }}"
 matrix_client_fluffychat_container_labels_traefik_hostname: "{{ matrix_client_fluffychat_hostname }}"
 # The path prefix must either be `/` or not end with a slash (e.g. `/fluffychat`).
 matrix_client_fluffychat_container_labels_traefik_path_prefix: "{{ matrix_client_fluffychat_path_prefix }}"

roles/custom/matrix-client-fluffychat/templates/labels.j2

@@ -11,7 +11,7 @@ traefik.enable=true
 traefik.docker.network={{ matrix_client_fluffychat_container_labels_traefik_docker_network }}
 {% endif %}
 
-traefik.http.services.matrix-client-fluffychat.loadbalancer.server.port=8080
+traefik.http.services.matrix-client-fluffychat.loadbalancer.server.port={{ matrix_client_fluffychat_container_labels_traefik_http_service_load_balancer_port }}
 
 {% set middlewares = [] %}
 

roles/custom/matrix-client-fluffychat/templates/systemd/matrix-client-fluffychat.service.j2

@@ -22,7 +22,7 @@ ExecStartPre={{ devture_systemd_docker_base_host_command_docker }} create \
 			--read-only \
 			--network={{ matrix_client_fluffychat_container_network }} \
 			{% if matrix_client_fluffychat_container_http_host_bind_port %}
-			-p {{ matrix_client_fluffychat_container_http_host_bind_port }}:8080 \
+			-p {{ matrix_client_fluffychat_container_http_host_bind_port }}:{{ matrix_client_fluffychat_container_http_port }} \
 			{% endif %}
 			--label-file={{ matrix_client_fluffychat_data_path }}/labels \
 			--tmpfs=/tmp:rw,noexec,nosuid,size=10m \