Merge branch 'synapse-workers' into feature/add-worker-support

roles/matrix-synapse/templates/synapse/systemd/matrix-synapse-worker@.service.j2

@@ -0,0 +1,29 @@
+#jinja2: lstrip_blocks: "True"
+# c.f. https://github.com/matrix-org/synapse/pull/4662
+[Unit]
+Description=Synapse Matrix Worker
+After=matrix-synapse.service
+BindsTo=matrix-synapse.service
+
+[Service]
+Type=simple
+
+# Intentional delay, so that the homeserver (we likely depend on) can manage to start.
+ExecStartPre=/bin/sleep 5
+
+# systemd ftw 🤦‍♂️
+# https://github.com/systemd/systemd/issues/14895#issuecomment-594123923
+ExecStart=/bin/sh -c "WORKER=%i; WORKER=$${WORKER%%:*}; \
+			exec /usr/bin/docker exec \
+			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
+			matrix-synapse \
+			python -m synapse.app.$${WORKER} -c /data/homeserver.yaml -c /data/worker.%i.yaml"
+
+ExecStop=/usr/bin/docker exec matrix-synapse pkill -f %i
+KillMode=process
+Restart=always
+RestartSec=10
+SyslogIdentifier=matrix-synapse-%i
+
+[Install]
+WantedBy=matrix-synapse.service

roles/matrix-synapse/templates/synapse/systemd/matrix-synapse.service.j2

@@ -43,6 +43,11 @@ ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-synapse \
 			{% if matrix_synapse_manhole_enabled and matrix_synapse_container_manhole_api_host_bind_port %}
 			-p {{ matrix_synapse_container_manhole_api_host_bind_port }}:9000 \
 			{% endif %}
+			{% if matrix_synapse_workers_enabled %}
+			{% for worker in matrix_synapse_workers_enabled_list %}
+			-p {{ worker.port }}:{{ worker.port }} \
+			{% endfor %}
+			{% endif %}
 			-v {{ matrix_synapse_config_dir_path }}:/data:ro \
 			-v {{ matrix_synapse_storage_path }}:/matrix-media-store-parent:slave \
 			{% for volume in matrix_synapse_container_additional_volumes %}