Move matrix-appservice-discord into a separate role

roles/matrix-bridge-appservice-discord/templates/systemd/matrix-appservice-discord.service.j2

@@ -0,0 +1,38 @@
+#jinja2: lstrip_blocks: "True"
+[Unit]
+Description=Matrix Appservice Discord server
+{% for service in matrix_appservice_discord_systemd_required_services_list %}
+Requires={{ service }}
+After={{ service }}
+{% endfor %}
+{% for service in matrix_appservice_discord_systemd_wanted_services_list %}
+Wants={{ service }}
+{% endfor %}
+
+[Service]
+Type=simple
+ExecStartPre=-/usr/bin/docker kill matrix-appservice-discord
+ExecStartPre=-/usr/bin/docker rm matrix-appservice-discord
+
+ExecStart=/usr/bin/docker run --rm --name matrix-appservice-discord \
+			--log-driver=none \
+			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
+			--cap-drop=ALL \
+			--network={{ matrix_docker_network }} \
+			{% if matrix_appservice_discord_container_expose_client_server_api_port %}
+			-p 127.0.0.1:9005:9005 \
+			{% endif %}
+			-v {{ matrix_appservice_discord_base_path }}:/data \
+			{% for arg in matrix_appservice_discord_container_extra_arguments %}
+			{{ arg }} \
+			{% endfor %}
+			{{ matrix_appservice_discord_docker_image }}
+
+ExecStop=-/usr/bin/docker kill matrix-appservice-discord
+ExecStop=-/usr/bin/docker rm matrix-appservice-discord
+Restart=always
+RestartSec=30
+SyslogIdentifier=matrix-appservice-discord
+
+ [Install]
+WantedBy=multi-user.target