Add mxisd Identity Server support

roles/matrix-server/templates/systemd/matrix-mxisd.service.j2

@@ -0,0 +1,29 @@
+[Unit]
+Description=Matrix mxisd identity server
+After=docker.service
+Requires=docker.service
+{% if not matrix_postgres_use_external %}
+Requires=matrix-postgres.service
+After=matrix-postgres.service
+{% endif %}
+
+[Service]
+Type=simple
+ExecStartPre=-/usr/bin/docker kill matrix-mxisd
+ExecStartPre=-/usr/bin/docker rm matrix-mxisd
+ExecStart=/usr/bin/docker run --rm --name matrix-mxisd \
+			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
+			--network={{ matrix_docker_network }} \
+			{% if not matrix_nginx_proxy_enabled %}
+			-p 127.0.0.1:8090:8090 \
+			{% endif %}
+			-v {{ matrix_mxisd_config_path }}:/etc/mxisd:ro \
+			-v {{ matrix_mxisd_data_path }}:/var/mxisd \
+			{{ matrix_docker_image_mxisd }}
+ExecStop=-/usr/bin/docker kill matrix-mxisd
+ExecStop=-/usr/bin/docker rm matrix-mxisd
+Restart=always
+RestartSec=30
+
+[Install]
+WantedBy=multi-user.target

roles/matrix-server/templates/systemd/matrix-nginx-proxy.service.j2

@@ -6,6 +6,9 @@ Wants=matrix-synapse.service
 {% if matrix_riot_web_enabled %}
 Wants=matrix-riot-web.service
 {% endif %}
+{% if matrix_mxisd_enabled %}
+Wants=matrix-mxisd.service
+{% endif %}
 
 [Service]
 Type=simple